Gas distribution device and composition containing same

Abstract

According to the gas distribution device and the composition containing the gas distribution device, a mouth suction part does not need to be modified, gaseous substances released by the mouth suction part can be divided into two paths through a Tesla valve in the gas distribution device, one path of gaseous substances enters the oral cavity of a user from a mouth suction branch, and the other path of gaseous substances enters the nasal cavity of the user from a snorting branch or is released beside the nostrils of the user. Therefore, the use experience and the medical effect of the medical atomizer can be improved; an electronic cigarette user can intake smoke from the same source at the same time through the mouth and the nose, so that smoking experience is improved; by means of the fan airflow and / or the filtering unit, harmful substances contained in smoke of the electronic cigarette and the cigarette in the mouth suction branch and the nose suction branch are reduced, and some beneficial additional ingestion substances can be ingested by the mouth and the nose of a user at the same time.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment and consumer products, and in particular to a gas separation device and a composition containing the gas separation device. Background Art

[0002] Mouth-to-mouth devices include medical atomizers, non-medical electronic atomizers, steam e-cigarettes, heat-not-burn e-cigarettes (HNB), burning cigarettes and tobacco smoking tools, such as cigarettes, cigars, pipes and hookahs. When non-medical electronic atomizers and CBD e-cigarettes do not contain nicotine, their smoke is also called aerosol.

[0003] Medical nebulizers allow patients to inhale liquid medicine atomizers to treat upper respiratory tract diseases such as pharyngitis, laryngitis, tonsillitis, etc. The advantages are: liquid medicine atomizers can be directly deposited in the oral cavity and nasal cavity without being metabolized by the digestive tract and liver. The disadvantages are: ⑴ The medical nebulizer mask cannot accelerate the atomized drug solution in a directional manner, causing the atomized drug solution to float in the mask. Moreover, after the atomized drug solution enters the high-humidity oral cavity and nostrils, it absorbs moisture and slows down the flow rate. The hair in the nostrils will also hinder its penetration. The atomized drug solution can only be deposited on the oral mucosa and nostrils nearby, and the amount deposited in the throat, lungs and deep nasal cavity is relatively small, making it difficult to treat lower respiratory tract diseases such as trachea, bronchus, and alveoli; ⑵ Although increasing the power of the medical nebulizer can reduce the particle size of the atomized drug solution and increase the flow rate, and can deposit the atomized drug solution in the lower respiratory tract and deep nasal cavity, the increased motor noise makes the patient uncomfortable; ⑶ Part of the atomized drug solution in the nebulizer mask flows back into the medical nebulizer, which not only wastes the drug, but also damages the medical nebulizer circuit; ⑷ The integrated mask covers the mouth, nose and part of the cheek at the same time. The atomized drug solution deposited on the cheek is not only wasted but also disliked by some users.

[0004] In addition to the nicotine and tobacco aroma substances that users want to ingest, there are hundreds of harmful substances such as tar, carbon monoxide (CO), carbonyl compounds, nitrogen oxides (NOx), hydrogen cyanide (HCN), tobacco-specific nitrosamines (TSNAs), phenylpyrene (BaP), heavy metals and free radicals in cigarette smoke, among which carbonyl compounds are mainly formaldehyde, acetaldehyde, acetone, acrolein, propionaldehyde, crotonaldehyde, 2-butanone and butyraldehyde. The user's intermittent puffing airflow pause and the cigarette butts and ash hinder the air exchange at the combustion cone, which will cause the tobacco to smolder and pyrolyze in an oxygen-deficient environment, resulting in the sidestream smoke. Harmful substances such as CO and NOx are 2-11 times the corresponding harmful substances in mainstream smoke. Sidestream smoke diffuses into the air, not only endangering others, but also part of the sidestream smoke will be ingested by the user's nostrils and scalp pores, endangering the user's health. The current disadvantages of cigarette filters and other smoke filtering devices are: (1) They cannot reduce the harm of sidestream smoke to users. ⑵ Acetate fiber and other physical materials are mainly used to absorb harmful substances in mainstream smoke. The adsorption capacity is small, and harmful substances are easy to desorb. The harmful substances in the smoke after eight puffs are far more than those in the first few puffs. ⑶ When acetate fiber and other physical materials absorb harmful substances in mainstream smoke, they will also absorb nicotine and tobacco flavor substances in mainstream smoke. However, in order to meet the nicotine efficiency and tobacco flavor required by users, filters and other smoke filtering devices can only reduce the adsorption rate of smoke components, resulting in a reduction of harmful substances that is difficult to exceed 50%; it is reported that cigar smoke has more harmful substances than cigarettes, but in order to maintain the flavor, cigars do not even use filters; there is no doubt that this compromise is not conducive to the health of users. ⑷ The lack of nicotine compensation in cigarette filters and other smoke filtering devices will cause users to increase the number of puffs to obtain the required nicotine, but in turn ingest more harmful substances in the smoke.

[0005] Electronic cigarettes are a type of harm reduction tool that imitates cigarettes and delivers nicotine to the user's mouth, but many smokers do not like electronic cigarettes. They complain that the nicotine satisfaction efficiency and smoke flavor of electronic cigarettes are far inferior to those of cigarettes. In addition, studies have found that metal parts in electronic cigarettes will migrate metal ions into the smoke oil and mix into the smoke. Even the content of certain heavy metals in each puff of electronic cigarette smoke is higher than that in each puff of cigarette smoke. Even if the intake of heavy metals per puff is less than 1 nanogram, it is difficult for heavy metals to be excreted from the body, and they will accumulate and cause poisoning over time. Summary of the invention

[0006] In order to solve or partially solve the above problems, the present invention points out a gas separation device, which includes an air receiving section connected to a mouth suction piece, a mouth suction branch and a nasal suction branch. At least one Tesla valve is arranged in the gas separation device, and the gaseous substance released by the mouth suction piece is divided into two paths by the gas separation device, one path of gaseous substance enters the user's oral cavity from the mouth suction branch, and the other path of gaseous substance enters the user's nasal cavity from the nasal suction branch or is released near the user's nostrils. The gaseous substance includes but is not limited to liquid medicine atomization, electronic cigarette smoke or aerosol, cigarette smoke, but not a single air. The present invention also points out a composition containing the gas separation device, which includes but is not limited to a cylinder with air inlet and air outlet, a battery, a fan, a cigarette, a match, and a cigarette butt bin. The mouth suction piece in the present invention includes but is not limited to a medical atomizer, a non-medical electronic atomizer, a steam electronic cigarette, a heat-not-burn electronic cigarette, a burning cigarette, a dry tobacco pipe, and a hookah appliance. Combustion-type cigarettes include but are not limited to cigarettes, flue-cured tobacco, cigars, etc.

[0007] In some embodiments, the Tesla valve is disposed at one or more of the air receiving section, the nasal suction branch, and the mouth suction branch of the gas distribution device. The Tesla valve, also known as a passive check valve or a valve conduit, is a one-way valve that accelerates the forward fluid in multiple stages and throttles the reverse fluid in multiple stages. The geometric shape of the Tesla valve includes but is not limited to an inclined path and a semi-loop path.

[0008] In some embodiments, the Tesla valve is disposed in a sleeve to form a Tesla valve sleeve and is obtained by integral molding or split assembly, and the gap between the outer wall of the Tesla valve and the inner wall of the sleeve is filled with air or other fillers. The port of the Tesla valve sleeve is provided with threads or gaskets to facilitate airtight connection, disassembly or adjustment of the position of the Tesla valve in the gas distribution device.

[0009] In some embodiments, at least one filter unit is further provided in the gas separation device, and a filter material or a filter material loaded on a carrier is provided in the filter unit, which can intercept harmful substances in the gaseous substances released by the mouth-suction piece. Among them: solid carriers include but are not limited to acetate fiber, polypropylene fiber, metal felt, porous ceramic microspheres, activated carbon, silica gel, zeolite, sepiolite, medical stone, molecular sieve, alumina, etc.; colloidal carriers include but are not limited to gel, ion exchange resin; liquid carriers include but are not limited to ionic liquids, water, solutions, suspensions, turbid liquids, tobacco oils, etc. Preferably, the solid carrier and the colloidal carrier are porous carriers, which can physically adsorb certain harmful substances, such as tar in flue gas, etc. Some porous carriers themselves can also intercept certain harmful substances in flue gas through chemical reactions such as ion exchange or complexation.

[0010] In some embodiments, the filter unit contains a carrier loaded with metal ions or modified with functional groups, which can intercept nitrosamines and hydrogen cyanide in the flue gas. The metal ions include but are not limited to Cu 2+ Mg 2+、Zn 2+ , Fe 3+ 、Al 3+ , functional groups include but are not limited to amino, hydroxyl or thiol, etc., carriers include but are not limited to zeolite, sepiolite, montmorillonite, medical stone, molecular sieve, activated carbon, ion exchange resin and porous alumina, etc., and exemplary molecular sieves include NaY, NaA, HY, KA, NaZSM-5, HZSM-5, MCM-48, MCM-41, etc. For example: zeolite is placed on Cu 2+ The solution was ultrasonicated for 0.5 hours (h), filtered and then calcined at high temperature to obtain the loaded Cu 2+ zeolite; MCM-48 was mixed with 3-aminopropyltriethoxysilane and toluene, refluxed at 120°C for 20h, cooled to room temperature, added with an appropriate amount of porous alumina particles and ultrasonically mixed for 0.5h, filtered and dried to obtain porous alumina particles loaded with MCM-48-NH2.

[0011] In some embodiments, the filter unit contains biomass or biomass modified with functional groups or metal ions and carriers, which can intercept carbonyl compounds and hydrogen cyanide in flue gas. Biomass includes but is not limited to: tea, chitosan and its derivatives, chitin and its derivatives, cyclodextrin, cellulose, catalase, glutathione, etc. For example: 2 grams of chitosan is dissolved in 98 grams of 1% hydrochloric acid, and the pH is adjusted to 4.8 with 0.1% NaOH solution, and then 0.8 grams of copper sulfate is added and stirred for 1 minute. The amino complex Cu in chitosan 2+ Chitosan-Cu 2+ Then add 10g medical stone particles, stir continuously for 1h, ultrasonicate for 0.5h, wash the filtered medical stone particles with 95% alcohol, and dry at 60℃ to obtain the loaded chitosan-Cu 2+ Medical stone.

[0012] In some embodiments, the filter unit contains a carrier loaded with one or more sub-metal ions, which can intercept nitrogen oxides in the flue gas. Sub-metal ions include but are not limited to Cu + , Fe 2+ 、Ni 2+ , Mn 2+ 、Co 2+ For example: add 20g of sepiolite to 500ml of 1M Co 2+ and 1M Mn 2+ After stirring for 2 hours in a solution, the mixture was filtered, washed with water, dried, and calcined in nitrogen (N2) for 3 hours to obtain sepiolite loaded with manganese oxide-cobalt oxide (MnO-CoO). NiSO4 and EDTA-2Na were added to water and stirred to obtain Ni 2+-EDTA aqueous solution. Cage carriers can also be used to improve the stability of meta-metal ions. Cage carriers include but are not limited to NaY, NaX, 13X, HZSM, 3A, 4A molecular sieves, metal organic frameworks (MOFs) and ion exchange resins. For example: add 50 grams of NaY molecular sieve particles to 30 ml of 1M copper chloride aqueous solution, heat at 100 ° C and stir for 4 hours, Cu 2+ Replace part of the cations in the molecular sieve structure, and then heat the filtered, washed and dried particles at 300 ° C in N2 for 2 h to convert Cu 2+ Reduction to Cu + , cooled to room temperature in N2 to obtain Cu + -NaY molecular sieve. After 1.16 g Ni(NO3)2·6H2O, 0.33 g terephthalic acid and 15 ml N,N-dimethylformamide (DMF) were uniformly mixed, the pH was adjusted to 4 with 10% hydrochloric acid, and then stirred for 0.5 h and transferred to a polytetrafluoroethylene-lined reactor. After heating at 120°C for 20 h, the supernatant was removed by centrifugation. The precipitate was washed with DMF and ethanol three times and then immersed in dichloromethane (CH2Cl2) for activation. After 3 days, the supernatant was removed by centrifugation. The precipitate was vacuum dried at 150°C for 4 h to obtain Ni 2+ -MOFs nanoparticles; then dissolve 2 grams of oxalic acid in 20 grams of ethanol and add 1 gram of Ni 2+ -MOFs nanoparticles and 5 g of porous ceramic microspheres were stirred openly at room temperature until the ethanol was completely volatilized, and the solid was calcined at 300 ° C for 4 h in N2 to remove oxalic acid to obtain Ni-loaded 2+ -MOFs porous ceramic microspheres. Add 20 g of porous resin particles and 100 ml of Fe(II)-EDTA-Na2SO3 aqueous solution into a flask and stir. The aqueous solution [Fe(II)-EDTA] 2- Cl in the resin skeleton - An ion exchange reaction occurred, and after 3 hours, the mixture was filtered, washed and dried to obtain resin particles loaded with Fe(II)-EDTA.

[0013] In some embodiments, the carrier in the filter unit is alkaline, such as an aqueous solution of sodium hydroxide, which can intercept acidic hazards such as HCN in the flue gas.

[0014] In some embodiments, the filter unit contains antioxidants and / or selenium, which can remove free radicals in the smoke. Antioxidants include but are not limited to tea polyphenols, caryophyllene, rosemaryl, squalene, tocopherol, astaxanthin, vitamins, anthocyanins, and lutein; selenium includes but is not limited to inorganic selenium, biological selenium, and the like, such as selenium-enriched yeast and selenium-enriched plants.

[0015] In some embodiments, the filter unit contains porphyrin or metalloporphyrin and a carrier, which can intercept benzopyrene, N-nitrosamines, CO, NOx, and HCN in the flue gas. For example, the preparation method of iron porphyrin or activated carbon loaded with iron porphyrin is as follows: add 50 ml of saturated ferrous nitrate ethanol solution into a 250 ml three-necked flask, introduce N2 protection, control the water bath temperature at 60°C, add 25 ml of ethanol solution containing 0.2 g of sodium protoporphyrin, stir for 4 hours, then add 50 ml of chloroform, add 50 ml of 0.1 M sodium hydroxide to the chloroform layer separated by layers, and after complete dissolution, adjust the pH of the solution to less than 5 with 20 vol% hydrochloric acid, a large amount of black-green precipitate is precipitated in the solution, filter, and vacuum dry the product at 40°C for 12 hours to obtain iron porphyrin; dissolve an appropriate amount of iron porphyrin in CH2Cl2, add activated carbon for adsorption for 10 hours, and vacuum dry at 40°C for 12 hours to obtain activated carbon loaded with iron porphyrin.

[0016] In some embodiments, the filter unit contains a complexing agent that can intercept heavy metals in the flue gas. The complexing agent includes but is not limited to ethylenediaminetetraacetic acid (EDTA), disodium ethylenediaminetetraacetate (EDTA-2Na), cysteine, citric acid, dithiocarbamate, and dithizone. The complexing agent is dissolved in a liquid carrier, or loaded into a solid carrier or a colloidal carrier.

[0017] In some embodiments, a small amount of a color developer can be dissolved in an ionic liquid or adsorbed onto other filter materials to set a color developer in the filter unit. A color developer that is highly sensitive to heavy metals is preferred, including but not limited to porphyrins, chromotropic acid disazo reagents, and methylthymol blue color developers. Through the color change of the color developer, the user can sense the heavy metals in the smoke trapped by the filter unit. For easy observation, the housing of the gas separation device corresponding to the filter unit is made of transparent material or embedded with a small magnifying glass.

[0018] In some embodiments, before the filter unit is set in the gas distribution device, some additional intake substances required by the user are pre-adsorbed. The additional intake substances include but are not limited to: aroma substances such as menthol, tobacco flavors and fruit flavors; alkaloids such as nicotine, arecoline and caffeine; functional substances such as rhinitis powder, rosemary and herbal extracts. The mouth suction branch is set with flavors such as cool, sour, sweet, etc. that the oral cavity likes or functional substances such as throat clearing and lung moistening, and the nasal suction branch is set with tobacco flavors, fruit flavors or functional substances that clear the nose and open the orifices to meet the needs of the human mouth and nose and the organs connected to them. For example: dissolve an appropriate amount of iron porphyrin and β-cyclodextrin in a 50% ethanol aqueous solution, immerse cellulose acetate and ultrasonicate for 0.5h, take out the cellulose acetate and dry it at 80℃ through ventilation to obtain cellulose acetate loaded with iron porphyrin and β-cyclodextrin; then weigh 0.1g of menthol, nicotine, arecoline, caffeine, rosemary, monk fruit extract, linalool, lily essential oil, pear extract, and pipa extract to form a 1g mixed solution, and slowly add it dropwise to 99g of cellulose acetate loaded with iron porphyrin and β-cyclodextrin to pre-absorb the additional intake.

[0019] In some embodiments, after the filter unit is set in the gas distribution device, it can also adsorb some additional intake on site. For example: 0.05 grams of tobacco flavor, 0.05 grams of nicotine and 0.01 grams of clove extract are dissolved in a mixture of 2.28 ml of polyethylene glycol-600 (PEG-600) and 5.72 ml of triacetin, and then 0.1 grams of β-cyclodextrin are added and stirred for 3 hours to obtain a suspension of β-cyclodextrin as a liquid filter material. The β-cyclodextrin in the suspension can not only adsorb harmful substances such as tar and nitrosamines in the smoke, but also physically adsorb tobacco flavor, nicotine and clove on site and then slowly release them into the mouth suction branch or the nasal suction branch. The principle is: β-cyclodextrin has poor solubility in triacetin, and a part of β-cyclodextrin is dissolved into the mixed liquid through the co-solvent PEG-600. The suspended β-cyclodextrin and the dissolved β-cyclodextrin dynamically alternate. The dissolved β-cyclodextrin uses its unique molecular hole structure to adsorb the tobacco flavor, nicotine and clove molecules dissolved in the mixed liquid, and then alternately suspends on the liquid surface and then slowly releases them.

[0020] In some embodiments, a carrier in the filter unit can also be loaded on another one or more carriers. For example: ionic liquids are loaded on carriers such as silica gel; ionic liquids can also dissolve complexing agents, biomass, antioxidants, flavors, alkaloids and other substances. After more substances are dissolved in ionic liquids, they become paste-like filter materials, and then loaded on solid carriers such as acetate fiber. Ionic liquids are almost non-volatile. Ionic liquids include but are not limited to coordinated ionic liquids, amino acid ionic liquids, composite ionic liquids, etc., among which amino acid ionic liquids can intercept HCN and aldehydes in flue gas. The principle is: amino groups can form Schiff base compounds with aldehyde groups, and amino groups can also undergo acid-base neutralization reactions with HCN. For example, choline-lysine ionic liquids dissolved with EDTA-2Na are loaded on other carriers. The preparation method comprises the following steps: mixing choline hydroxide and lysine in a molar ratio of 1:1.05, stirring at 3°C ​​for 48 hours, and then distilling under reduced pressure at 55°C to remove water, adding a mixed solvent of acetonitrile-methanol in a volume ratio of 9:1 to the residue, stirring and extracting, filtering to remove unreacted lysine, distilling the filtrate under reduced pressure at 40°C to remove the solvent, and drying the residue under vacuum at 70°C for 48 hours to obtain a choline-lysine ionic liquid ([Ch][Lys]); then dissolving 0.5 g of EDTA-2Na in 10 g of [Ch][Lys] to obtain an EDTA-[Ch][Lys] ionic liquid; and then mixing 5 g of porous silica gel with a particle size of about 10 microns and kneading for 1 hour to obtain a porous silica gel loaded with EDTA-[Ch][Lys], or dripping an appropriate amount of EDTA-[Ch][Lys] onto a polypropylene fiber porous carrier to obtain a polypropylene fiber loaded with EDTA-[Ch][Lys] as a liquid-solid composite filter material. 0.15 g of β-cyclodextrin and 0.05 g of cellulose are dissolved in 10 g of a NaOH aqueous solution with a pH of 9, and then 3 g of porous silica gel loaded with EDTA-[Ch][Lys] and 46.8 g of selenium-rich plant stems and leaves are added, and the mixture is stirred evenly. After mechanical hot pressing to remove moisture, a cylindrical porous filter element containing 6 wt% of porous silica gel loaded with EDTA-[Ch][Lys], 93.6 wt% of selenium-rich plant stems and leaves, 0.3 wt% of β-cyclodextrin, and 0.1 wt% of cellulose is prepared, and the filter element is divided into 5 mm in length as a filter unit; the filter unit is suspended in a vial, and a mixed solution consisting of 1 ml of tobacco extract, Xanthium sibiricum extract, passion fruit extract, rose essential oil, lavender essential oil, jasmine essential oil, osmanthus essential oil, and magnolia essential oil is added to the bottom of the vial, and the vial is sealed and placed at 4°C for 10 hours before being taken out, so that a variety of additional intakes are pre-adsorbed on the filter unit.

[0021] In some embodiments, a gas-distributing device is further provided with a gas-permeable pipe plug or a gas-permeable pipe plug compounded with a liquid-repellent material. For example, 1 wt% of 1H, 1H, 2H, 2H tridecafluorooctyl triethoxysilane (FAS) or other fluorosilane is dissolved in anhydrous ethanol, 1 wt% of water is added, and the mixture is stirred for 5 hours and then immersed in a cylindrical porous ceramic, and then allowed to stand for 24 hours so that the fluorosilane molecules are fully adsorbed on the skeleton of the porous ceramic. After the porous ceramic is taken out, it is baked at 100°C for 5 hours to obtain a gas-permeable pipe plug with a liquid-repellent surface. The gas-permeable pipe plug is either an ordinary mesh or a mesh coated with a liquid-repellent material, for example, a homogeneous emulsion of 30 wt% polytetrafluoroethylene (PTFE) particles with a particle size less than 3 microns, 10 wt% polyvinyl acetate, 8 wt% polyvinyl alcohol, 2 wt% sodium dodecylbenzene sulfonate and 50 wt% water is stirred and evenly sprayed on a metal mesh with a pore size of 30-420 microns, and then baked at 350°C for 0.5 hours to obtain a metal mesh compounded with PTFE. The vent plug can also be a plastic mesh or a plastic mesh bonded with a liquid-resistant breathable film, such as a commercial liquid-resistant breathable film such as a PTFE film and a polypropylene film, etc. The vent plug compounded with a liquid-repellent material can prevent the leakage of the liquid carrier in the gas separator, but will not prevent the gaseous substance from flowing in the gas separator.

[0022] In some embodiments, the skeleton of the vent plug can also load filter materials or adsorb additional ingested substances. For example, an appropriate amount of β-cyclodextrin and iron porphyrin is used as filter materials, dissolved in 30 ml CH2Cl2 containing 0.2 g carboxymethyl cellulose and 0.3 g acrylamide, quickly add 0.05 g initiator KPS and 0.1 ml epichlorohydrin and stir for 3 minutes, then immerse in a metal mesh, let it stand for 1 hour, take out the metal mesh, ventilate for 48 hours to completely volatilize and remove CH2Cl2, then load a thin layer of gel containing β-cyclodextrin and iron porphyrin onto the metal mesh, and then suspend it in a vial to adsorb additional ingested substances such as nicotine and flavors.

[0023] In some embodiments, the nasal inhalation branch of the gas distribution device is further provided with accessories such as a nasal inhalation mask or a universal tube. A flow regulating valve is also provided in the nasal inhalation branch, and the user can control the flow of the gaseous substance in the nasal inhalation branch by adjusting the valve area in the gas path to avoid choking.

[0024] In some embodiments, when the air receiving section of the air separation device is connected to the air outlet of the oral suction piece, or when the air receiving section is connected to the mouth suction branch or the nasal suction branch, or when the Tesla valve sleeve, the sleeve containing the filter unit and the connecting tube in the air separation device are connected to each other, the connection method includes but is not limited to nesting or threaded connection.

[0025] In some embodiments, the connection angle between the air receiving section of the air separation device and the mouth suction piece, the angle between the mouth suction branch and the user's face, and the angle between the nasal suction branch and the mouth suction branch can be adjusted between 0°-180° respectively.

[0026] In some embodiments, the distance between the end of the nasal branch of the air distribution device and the nostrils of the user is one of the following: ⑴ similar to the distance between the cigarette butt and the nostrils when the user directly inhales a cigarette; ⑵ close to but not touching the nostrils; ⑶ covering the nostrils through a nasal suction mask; ⑷ directly inserted into one or both nostrils.

[0027] In some embodiments, the air distribution device is also provided with an opening and a sealing plug for replacing the filter unit and the filter material. Sealing covers can also be provided at the air inlet of the air receiving section of the air distribution device and at the ends of the nasal inhalation branch and the mouth inhalation branch, respectively, to prevent the escape of additional intake when the user is not using the air distribution device, and to keep the inside of the air distribution device clean.

[0028] In some embodiments, the air distribution device is placed in a cylindrical cavity provided with an air inlet and an air outlet, and forms a combination with a battery, a fan, etc. in the cavity. The airflow emitted by the fan can continuously blow the burning cone of the cigarette, not only completely blowing the sidestream smoke away from the user's nostrils and scalp pores, but also accelerating the air flow around the burning cone, replenishing fresh air in time during the burning process of tobacco, reducing incomplete combustion, and thus reducing tar, CO, NOx and other harmful substances in the mainstream smoke.

[0029] The technical principle of the present invention is: when the mouth-suction piece is activated by a button to release gaseous substances, the Tesla valve in the air separation device can forwardly guide the gaseous substances into the user's mouth and nose through the mouth suction branch and the nasal suction branch respectively; when the mouth-suction piece can release gaseous substances only when the mouth suction airflow triggers the airflow switch, the Tesla valve in the nasal suction branch can not only forwardly guide the gaseous substances, but also reversely inhibit the outside air from entering the air separation device, thereby maintaining the negative pressure inside the air separation device, and after the gaseous substances released by the mouth-suction piece enter the air separation device, one way is through the mouth suction branch, and the other way is through the nasal suction branch. Enter the user's oral cavity or be transmitted to the user's nostrils, so that the mouth and nose can simultaneously ingest the gaseous substances released by the mouth-suction piece.

[0030] Surprisingly, when the button-activated medical nebulizer outlet is combined with the air distribution device, the end of the mouth suction branch of the air distribution device can reach the user's oral and throat area, and the end of the nasal suction branch can also be inserted into the patient's nostrils. Therefore, the aerosol of the liquid medicine can avoid the high humidity environment of the oral cavity and the obstruction of nasal hair and penetrate into the throat, lungs and nasal cavity, which helps to cure lower respiratory tract diseases such as trachea, bronchi, alveoli and rhinitis.

[0031] Unexpectedly, after installing the Tesla valve in the gas separation device, it can not only increase the flow rate of the gaseous substance, but also refine the particle size of the gaseous substance. The principle is that when the gaseous substance released by the mouthpiece passes through the Tesla valve, the gaseous substance expands and then compresses in the valve. The change in pressure difference causes the gaseous substance to quickly hit the obstruction surface, and the gaseous substance is broken into smaller particles. Obviously, this is beneficial to improving the efficacy of medical atomizers and improving the smoking experience of electronic cigarettes and cigarettes.

[0032] Unexpectedly, when the electronic cigarette mouthpiece is combined with the air splitting device, the smoke released by the electronic cigarette can be automatically divided into two paths by the air splitting device and enter the user's mouth and nose respectively, which can simulate the scene of the user's mouth and nose taking in mainstream smoke and sidestream smoke from the same cigarette at the same time when smoking a cigarette. Due to the physiological characteristics of the organs connected to the human mouth and nose and brain perception, the transmission efficiency of nicotine through the nasal cavity is higher than that through the oral cavity, and the recognition efficiency of the brain's "mirror" neural signals when aroma substances are transmitted through the nasal cavity is higher than that through the oral cavity. Therefore, whether the user puts the end of the nasal suction branch close to the nostrils, covers the nostrils with a nasal suction mask, or directly inserts it into the nostrils, the nicotine satisfaction efficiency and smoke flavor of the electronic cigarette will be greatly improved.

[0033] Unexpectedly, the gas distribution device can also adjust the distribution ratio of the gaseous substances released by the mouth suction piece in the mouth suction branch and the nasal suction branch. For example, when the gas distribution device connected to the electronic cigarette or cigarette only sets a Tesla valve in the nasal suction branch, or sets a baffle or fan in the air receiving section, it can increase the smoke entering the nasal suction branch and reduce the smoke entering the mouth suction branch, which has three benefits: ⑴ More smoke entering the nasal cavity can further improve the nicotine satisfaction efficiency and smoke flavor of the electronic cigarette or cigarette; ⑵ More smoke entering the nasal cavity can reduce the risk of some flavors in the electronic cigarette smoke continuously depositing on the alveoli after entering the lungs from the mouth, and can also reduce the damage of cigarette smoke to the user's mouth and lungs; ⑶ Nostril hair or nasal mucus will prevent harmful substances such as tar in the smoke from penetrating into other organs of the human body, and will also expel the intercepted harmful substances from the body in the form of snot.

[0034] Surprisingly, the gaseous substance released by the mouthpiece can act as a carrier gas to increase the volatilization rate and temperature of the additional intake in the gas separation device. The smoke released by cigarettes and e-cigarettes is usually 40℃-60℃, which can directly heat these additional intakes and enhance the sensory experience of the additional intakes when they enter the user's mouth and nasal cavity, especially some aroma substances.

[0035] Unexpectedly, some color developers in the filter unit can intercept heavy metals in the flue gas by themselves, and when accumulated to the microgram level, a color change visible to the human eye can occur. Such color developers include but are not limited to: meso-tetra-(p-sulfophenyl)porphyrin, tetrakis(4-methoxy-4-sulfonic acid phenyl)porphyrin, tetrakis(4-methoxy-3-sulfonic acid phenyl)porphyrin, tetraphenylporphyrin, meso-tetrakis(4-chlorophenyl)porphyrin, meso-tetrakis(p-hydroxyphenyl)porphyrin, meso-tetrakis(4-nitrophenyl)porphyrin, 1-(2-pyridylazo)-2-naphthol, and 4-(2-pyridylazo)resorcinol.

[0036] Surprisingly, due to the high aromaticity of porphyrin compounds, when the porphyrin compounds are arranged in the filter unit as filter materials and color developers, they can also increase the aroma felt by the user when using the mouth-suction device.

[0037] Surprisingly, the Tesla valve in the gas distribution device can prevent the gaseous substances released by the mouth-suction piece from flowing back into the mouth-suction piece, thereby reducing the aerosol condensation at the air outlet of the medical atomizer and steam e-cigarette, and reducing the risk of corrosion of the circuit in the mouth-suction piece.

[0038] Surprisingly, the mouth-suction branch and the nose-suction branch of the gas distribution device can also exchange positions. For example, the electronic cigarette rod is originally parallel to the mouth-suction branch and perpendicular to the nose-suction branch. After the exchange, the mouth-suction branch is perpendicular to the rod, and the user's face is almost parallel to the rod when smoking the electronic cigarette.

[0039] The difference between the present invention and the prior art is:

[0040] (1) Cigarette filters and other smoke filtering devices, without reducing the nicotine satisfaction efficiency and smoke flavor, can hardly reduce the main harmful substances in mainstream smoke by more than 50%, and cannot reduce the harm of sidestream smoke to users. The gas separation device of the present invention and the composition containing the gas separation device can reduce the main harmful substances in the mouth-inhaled branch smoke by more than 55% relative to the main harmful substances in the mainstream cigarette smoke, and reduce the main harmful substances in the nose-inhaled branch smoke by more than 93% relative to the main harmful substances in the sidestream cigarette smoke, without reducing the nicotine satisfaction efficiency and smoke flavor.

[0041] (2) Patents CN217509876U, CN218571414U, CN112450490A, CN112586805A, and CN214431833U respectively set the Tesla valve in the bottom assembly of the atomizer cartridge of the electronic cigarette, in the smoke intensification chamber, in the electronic cigarette cartridge, in the sealing structure of the electronic cigarette cartridge, and in the airflow channel of the microphone. They all set the Tesla valve inside the electronic cigarette to improve the problems of oil leakage or sealing of the electronic cigarette. Not only does it need to modify the internal structure of the existing electronic cigarette, but after the Tesla valve is placed in an electronic cigarette, it can no longer be combined with other electronic cigarettes. The present invention does not require the modification of the mouth suction piece, and the Tesla valve is set in the gas separation device outside the mouth suction piece; after the Tesla valve is placed in a separator device, the gas separation device containing the Tesla valve can quickly combine with other mouth suction pieces.

[0042] ⑶ The electronic cigarette disclosed in the PCT / CN2021 / 124562 patent is an oral and nasal coordinated electronic cigarette. The electronic cigarette smoke can only enter the oral cavity but cannot enter the user's nasal cavity at the same time. It is necessary to modify the electronic cigarette structure and add a flavor carrier to allow the nasal cavity to take in the flavor at the same time. Therefore, the sources of the oral and nasal materials are different. It is impossible to simulate the scene where the mainstream smoke and sidestream smoke of cigarettes come from the same tobacco material, and in order to heat the nasal flavor, a special heating device is required in the nasal module. The gas separation device of the present invention can directly divide the gaseous substances released by the mouth suction piece into two paths and enter the user's mouth and nose respectively without modifying the mouth suction piece; and when the mouth suction piece is an electronic cigarette or a cigarette, there is no need for a special heating device, and the temperature of the smoke itself in the nasal branch can reach 40℃-60℃, and it can also assist in heating some additional intakes in the nasal branch.

[0043] (4) Patent CN104248043B discloses a smoke flavor compensation device, an electronic cigarette and a cigarette holder filter, but can only compensate for the smoke flavor. The gas separation device of the present invention can not only compensate for the smoke flavor, but also compensate for nicotine and increase other additional intakes.

[0044] The beneficial effects of the present invention are as follows: the present invention points out an air separation device and a composition containing the air separation device, and the mouth suction piece is not modified. The Tesla valve in the air separation device automatically divides the gaseous substance released by the mouth suction piece into two paths, one gaseous substance enters the user's oral cavity from the mouth suction branch, and the other gaseous substance enters the user's nasal cavity from the nasal suction branch or is released near the user's nostrils. Therefore: it can improve the use experience and medical effect of the medical atomizer; enable the mouth and nose of the electronic cigarette user to inhale the smoke from the same source at the same time to enhance the smoking experience; and utilize the fan airflow and / or filtering unit to reduce the harmful substances contained in the smoke of the electronic cigarette or cigarette in the mouth suction branch and the nasal suction branch. On the premise that the nicotine efficiency is met and the smoke flavor is not reduced, the harm reduction of the electronic cigarette and cigarette exceeds the existing technology, and the user can also inhale some additional intake substances through the mouth and nose respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0046] Figure 1 This is a schematic diagram of the forward conduction of the Tesla valve.

[0047] Figure 2 This is a schematic diagram of the reverse suppression of the Tesla valve.

[0048] Figure 3 This is a structural diagram of the composition including the gas separator in Example 1.

[0049] Figure 4 It is a structural diagram of the gas separation device in Example 2.

[0050] Figure 5 This is a structural diagram of the composition containing the gas separator in Example 3.

[0051] Figure 6 This is a structural diagram of the composition containing the gas separator in Example 4.

[0052] Figure 7 This is a structural diagram of the composition containing the gas separator in Example 5.

[0053] Figure 8 61 is a structural diagram of the suction system.

[0054] Fig. 9 is a structural diagram of the suction system 62.

[0055] Fig.10 is a structural diagram of the suction system 63.

[0056] Fig.11 is a structural diagram of the suction system 64.

[0057] Fig.12 It is a structural diagram of the suction system 71.

[0058] Fig.13 is a structural diagram of the suction system 72.

[0059] Fig.14 It is a structural diagram of the suction system 73.

[0060] Fig.15 is a structural diagram of the suction system 74.

[0061] Fig.16 is a structural diagram of the suction system 81.

[0062] Fig.17 is a structural diagram of the suction system 82. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] See also Figure 1 to Figure 17 , the embodiment of the present invention includes:

[0065] Comparative Example 1

[0066] In a certain hospital, 5 patients who were using medical nebulizers were found. Their diseases were upper respiratory tract infections such as pharyngitis, laryngitis, tonsillitis, and lower respiratory tract infections such as chronic bronchitis and cough. The medical nebulizer includes an integrated mask that covers the nose, mouth, and part of the cheek at the same time. The patient must keep the mouth open and inhale for about 10 minutes to facilitate the deposition of the liquid medicine aerosol into the oral cavity and nasal cavity. Among the 5 patients, a young woman complained that the liquid medicine aerosol was deposited on her face, a boy could not keep the mouth open and inhale for a long time, an old man complained that the mouth open and inhale made him uncomfortable, and 2 young people complained that their chronic bronchitis and cough symptoms did not improve after using the nebulizer for many days.

[0067] Comparative Example 2

[0068] The solid cartridge of an HNB e-cigarette contains nicotine, tobacco flavors and smoke agents, etc., and efforts are made to ensure that each puff of HNB e-cigarette smoke contains almost the same amount of nicotine as each puff of cigarette smoke. The comprehensive evaluation of 10 tobacco tasters is that the nicotine satisfaction efficiency and smoke flavor of the HNB e-cigarette are worse than those of the cigarette.

[0069] Comparative Example 3

[0070] The cylindrical porous ceramic atomization core of a CBD electronic cigarette contains a nickel-chromium alloy heating wire. The outer periphery of the ceramic atomization core is a metal cover connected to the metal aerosol channel. The CBD atomization liquid directly contacts these metal parts when stored at room temperature and heated for atomization. After adding the CBD atomization liquid to the CBD electronic cigarette for 10 days, the suction system 63 is used to detect the content of nickel ions, chromium ions and lead ions in each aerosol when the CBD electronic cigarette is sucked.

[0071] Comparative Example 4

[0072] A tobacco-flavored steam electronic cigarette, the smoke oil of which contains 30wt% ethylene glycol, 50wt% glycerol and 20wt% tobacco extract. The temperature range of the porous ceramic atomization core and the metal thick film printing layer is 200-310°C. After adding the smoke oil for 10 days, the nicotine content in each puff of smoke when the electronic cigarette is smoked is detected by the suction system 61; the nickel ion, chromium ion, lead ion, formaldehyde, acetaldehyde, acrolein and diacetyl content in each puff of smoke when the electronic cigarette is smoked is detected by the suction system 63.

[0073] Comparative Example 5

[0074] Select a popular cigarette with a filter on the market. Use suction system 71 to detect the content of TSNAs and BaP in the sidestream smoke of each cigarette and in each puff of mainstream smoke; use suction system 73 to detect the content of tar, nicotine, CO and HCN in the sidestream smoke of each cigarette and in each puff of mainstream smoke; remove the air collection bag from suction system 73, and detect the content of carbonyl compounds in the sidestream smoke of each cigarette and in each puff of mainstream smoke; remove the collector and air collection bag from suction system 73, and detect the number of free radicals in the sidestream smoke of each cigarette and in each puff of mainstream smoke; remove the air collection bag from suction system 73 and replace the collector with an electrostatic collector tube, and detect the content of nickel, chromium and lead in the sidestream smoke of each cigarette and in each puff of mainstream smoke; use suction system 81 to detect the content of NOx in the sidestream smoke of each cigarette and in each puff of mainstream smoke.

[0075] Example 1

[0076] The Tesla valve includes an inlet pipe 01, a plurality of intermediate pipe units 02 and an outlet pipe 03 connected in series, the intermediate pipe unit includes an inclined branch pipe 021, an inlet connecting pipe port 022 is arranged on one side of the inclined branch pipe, an outlet connecting pipe port 023 is arranged on the other side of the inclined branch pipe, and an annular branch pipe 024 is arranged in parallel with the inclined branch pipe, the inlet connecting pipe port 022 is connected to the inlet pipe 01, and the outlet connecting pipe port 023 is connected to the outlet pipe 03. The Tesla valve can accelerate the conduction of the forward fluid in multiple stages and throttle and block the reverse fluid in multiple stages. After removing the mask of the medical nebulizer of comparative example 1, the air outlet of the medical nebulizer is combined with the air receiving section 102 of the air distribution device 101, a first gasket 103 is adhered to the inner side of the air receiving port of the air receiving section, and a first Tesla valve 104 is arranged in the air receiving section. The air connection section is horizontally connected to the first air distribution pipe 105, the first air distribution pipe is connected to the first sleeve pipe 107 containing the second Tesla valve 106, the second gasket 108 is fixed on the air inlet shell of the first sleeve pipe, and the first air distribution pipe and the first sleeve pipe form a mouth suction branch. The air connection section is also vertically connected to the second air distribution pipe 109, the second air distribution pipe is connected to the second sleeve pipe 111 containing the third Tesla valve 110, the third gasket 112 is fixed on the air inlet shell of the second sleeve pipe, the air outlet of the second sleeve pipe is connected to the ventilation pipe in the nasal suction mask 113, the ventilation pipe is connected to two air outlet holes 114 aimed at the user's nostrils, the nasal suction mask is made of soft silicone and can fit the nose, the fixing belts 115 on both sides of the nasal suction mask are connected to each other and then put on the user's head, and the second air distribution pipe, the second sleeve pipe and the nasal suction mask form a nasal suction branch. The medical nebulizer is loaded with liquid medicine and started, and the liquid medicine atomizer released from the air outlet is divided into two paths by the gas separation device, one path enters the patient's oral cavity from the mouth suction branch, and the other path enters the patient's nasal cavity through the nasal suction branch. After the medical nebulizer used by the five patients in Comparative Example 1 was combined with the gas separation device, the young woman no longer complained that the liquid medicine atomizer was deposited on her face, the boy and the old man were happy to put the first sleeve deep into their mouths and even close to their throats, and the young man felt that more liquid medicine atomizer was deposited in his lower respiratory tract. After using it for several days, his bronchitis and cough symptoms were significantly improved. In addition, the end of the first sleeve can also be connected to a disposable mouthpiece, and a hose can be added between the second sleeve and the nasal suction mask to improve the flexibility of the nasal suction mask.

[0077] Example 2

[0078] The solid smoke cartridge mouthpiece of the HNB electronic cigarette in comparative example 2 is inserted into the air inlet 203 in the air inlet section 202 of the air distribution device 201. The first internal thread joint 204 in the air inlet section is connected to the first external thread joint 206 in the mouth suction tube 205 to form a mouth suction branch; the inclined second internal thread joint 207 in the air inlet section is connected to the second external thread joint 210 in the sleeve 209 containing the Tesla valve 208 to form a nasal suction branch. After starting the HNB electronic cigarette, the solid smoke cartridge is heated, and when the user uses his mouth to emit a suction airflow at the end of the mouth suction tube, the suction airflow is throttled and blocked by the Tesla valve in the nasal suction branch, so that the air inlet section maintains a negative pressure. The suction airflow causes the smoke released by the solid smoke cartridge to enter the air distribution device and be divided into two paths. One path of smoke enters the user's oral cavity from the mouth suction branch, and at the same time, the other path of smoke enters the nasal suction branch and is accelerated and conducted by the first Tesla valve. The air outlet of the nasal suction branch is close to the user's nostrils, and the user's nasal cavity can ingest the smoke. The comprehensive evaluation of 10 tobacco tasters is: thanks to the fact that the mouth and nose can take in smoke at the same time, the nicotine satisfaction efficiency and smoke flavor of the HNB electronic cigarette are very close to those of cigarettes. In addition, after the mouthpieces of the electronic atomizer, steam electronic cigarette, CBD electronic cigarette, burning cigarette, dry tobacco pipe, hookah and other mouth-suction devices are respectively inserted into the air inlet 203 of the air separation device, the air separation device can also separate the smoke released by these mouth-suction devices into two paths to enter the user's oral cavity and nasal cavity, thereby improving the smoking experience of these mouth-suction devices.

[0079] Example 3

[0080] Insert the mouthpiece of the CBD electronic cigarette in Comparative Example 3 into the air inlet 303 in the air inlet section 302 of the air distribution device 301. The first internal threaded joint 304 in the air inlet section is connected to the first external threaded joint 306 in the first sleeve 305. The first sleeve is provided with a cylindrical first filter unit 307, a breathable pipe plug 308 and a breathable pipe plug 309. The first filter unit is provided with a polypropylene fiber loaded with EDTA-[Ch][Lys] as a filter material, and the ionic liquid [Ch][Lys] contains a small amount of meso-tetra-(p-sulfophenyl)porphyrin as a color developer. The second internal threaded joint 310 in the first sleeve is connected to the second external threaded joint 312 in the second sleeve 311. The second sleeve contains a first Tesla valve 313. The first sleeve and the second sleeve form a mouth suction branch. The third internal threaded joint 314 in the air connection section is connected to the third external threaded joint 316 in the third sleeve 315. The third sleeve contains a second Tesla valve 317. The fourth internal threaded joint 318 in the third sleeve is connected to the fourth external threaded joint 320 in the fourth sleeve 319. The fourth sleeve is provided with a second filter unit 321, a vent plug 322 and a vent plug 323. The second filter unit is also a polypropylene fiber loaded with EDTA-[Ch][Lys]. The ionic liquid [Ch][Lys] contains a small amount of 1-(2-pyridylazo)-2-naphthol as a color developer. The third sleeve and the fourth sleeve form a nasal suction branch. When the user uses his mouth to emit an inhalation airflow at the end of the second sleeve, the inhalation airflow is throttled and blocked by the second Tesla valve in the nasal inhalation branch. Therefore, the inhalation airflow forms a negative pressure environment with the aerosol channel of the CBD electronic cigarette, thereby activating the airflow sensing switch in the electronic cigarette, starting to heat the CBD atomized liquid and release an aerosol. The aerosol is divided into two paths in the air connection section, one aerosol enters the user's oral cavity from the mouth inhalation branch, and the other aerosol enters the user's nasal cavity from the nasal inhalation branch. The comprehensive evaluation of six CBD users is: thanks to the ability to ingest CBD aerosols through the mouth and nose at the same time, taking fewer puffs can relieve the body and mind. In addition, an inclined baffle 324 can be set in the air connection section, which can increase the aerosol entering the nasal inhalation branch and reduce the aerosol entering the mouth inhalation branch. In addition, the mouth suction branch and the nose suction branch can also exchange positions. When the mouth suction branch changes from being parallel to the electronic cigarette rod to being perpendicular to the electronic cigarette rod, the nose suction branch just changes from being perpendicular to the electronic cigarette rod to being parallel to the electronic cigarette rod. At this time, the user's face is almost parallel to the rod, which can also allow the CBD aerosol to enter the user's oral cavity and nasal cavity at the same time. The suction system 64 is used to detect the sum of the contents of nickel ions, chromium ions and lead ions in the aerosol in the mouth suction branch and the nose suction branch, respectively, when each puff of the CBD electronic cigarette is puffed. In Comparative Example 3 and Example 3, the comparison results of the contents of nickel ions, chromium ions and lead ions in the aerosol when each puff of the CBD electronic cigarette is puffed are shown in Table 1:

[0081] Table 1

[0082]

[0083] Example 4

[0084] Insert the mouthpiece of the steam electronic cigarette in comparative example 4 into the air inlet 403 in the air inlet section 402 of the air distribution device 401. The first air distribution pipe 404 perpendicular to the cigarette rod in the air connection section is connected to the first sleeve 405, and a first gasket 406 is provided on the outer wall of the air inlet of the first sleeve, and a first Tesla valve 407 is provided in the first sleeve. The air outlet of the first sleeve is connected to the second sleeve 408, and a second gasket 409, a breathable pipe plug 410, a first filter unit 411 and a breathable pipe plug 412 are provided in the second sleeve. The first filter unit is filled with four kinds of particles with a proportion of 25wt% and a particle size of 0.1mm-3mm as filter materials, specifically: sepiolite, MCM-41 molecular sieve, loaded chitosan-Cu 2+Medical stone, activated carbon loaded with iron porphyrin, wherein a small amount of color developer meso-tetra(4-nitrophenyl)porphyrin is adsorbed on the surface of the sepiolite. The air outlet of the second sleeve is connected to the third sleeve 413, the outer wall of the air inlet of the third sleeve is provided with a third gasket 414, the third sleeve is provided with a breathable pipe plug 415, a second filter unit 416 and a breathable pipe plug 417, the second filter unit is a polypropylene fiber loaded with EDTA-[Ch][Lys] and suspended in a vial containing 2 grams of nicotine for 0.5 hours to pre-absorb a small amount of nicotine. The first air branch pipe, the first sleeve, the second sleeve and the third sleeve form a mouth suction branch. The second air branch pipe 418 in the air receiving section is at an angle of about 150° with the cigarette rod, the second air branch pipe is connected to the fourth sleeve 419, the outer wall of the air inlet of the fourth sleeve is provided with a fourth gasket 420, and the fourth sleeve is provided with a second Tesla valve 421. The air outlet of the fourth sleeve is connected to the fifth sleeve 422, and the fifth sleeve is sequentially provided with a fifth gasket 423, a breathable pipe plug 424, a third filter unit 425 and a breathable pipe plug 426. The third filter unit is filled with the same filter material as the first filter unit, wherein a small amount of color developer 4-(2-pyridyl azo) resorcinol is adsorbed on the surface of the MCM-41 molecular sieve. The air outlet of the fifth sleeve is connected to the sixth sleeve 427, and the sixth sleeve is provided with a sixth gasket 428 on the outer wall of the air inlet, and the sixth sleeve is provided with a breathable pipe plug 429, a fourth filter unit 430 and a breathable pipe plug 431. The fourth filter unit is also a polypropylene fiber loaded with EDTA-[Ch][Lys] and pre-adsorbed with a small amount of nicotine. The breathable pipe plug 431 is a metal grid loaded with a thin layer of β-cyclodextrin and iron porphyrin gel, and pre-adsorbed with a small amount of nicotine and flavor. The second air branch pipe, the fourth sleeve, the fifth sleeve and the sixth sleeve form a nasal suction branch. When the user emits an inhalation airflow at the end of the mouth inhalation branch, the electronic cigarette smoke enters the gas distribution device and is divided into two paths. One path of smoke enters the user's mouth from the mouth inhalation branch, and the other path of smoke enters the nasal inhalation branch and is released next to the user's nostrils. The comprehensive evaluation of eight electronic cigarette users is: thanks to the fact that the mouth and nose can simultaneously inhale the smoke of the electronic cigarette, the electronic cigarette can obtain nicotine satisfaction with fewer puffs and the smoke flavor is richer. In addition, a fan 432 can be set in the cavity of the air receiving section, and the fan blade is in the shape of a "V" bucket, with an opening at the upper part 433 of the fan blade, and the thickness gradually decreases from the upper part of the fan blade to the bottom 434 of the fan blade. The inhalation airflow of the mouth inhalation branch and the smoke released by the electronic cigarette can cause the fan blade to rotate and increase the amount of smoke entering the nasal inhalation branch, or the fan blade can be rotated by using batteries and mechanical pressing force. The suction system 62 is used to detect the sum of the nicotine content in the smoke of the mouth inhalation branch and the nasal inhalation branch when the electronic cigarette is inhaled each time; the suction system 64 is used to detect the sum of the content of nickel ions, chromium ions, lead ions, formaldehyde, acetaldehyde, acrolein and diacetyl in the smoke of the mouth inhalation branch and the nasal inhalation branch respectively when the electronic cigarette is inhaled each time.In Comparative Example 4 and Example 4, when the electronic cigarette is inhaled each time, the comparison results of the contents of nickel ions, chromium ions, lead ions, formaldehyde, acetaldehyde, acrolein, diacetyl and nicotine in the smoke are shown in Table 2:

[0085] Table 2

[0086]

[0087] Example 5

[0088] In comparative example 5, the filter tip of the cigarette is inserted into the air inlet 503 in the air inlet section 502 of the air distribution device 501, and when the diameter of the filter tip is small, it is inserted into the inner tube 504. The first air distribution pipe 505 in the air connection section is connected to the first sleeve 506, and the first Tesla valve 507 is arranged in the first sleeve. The air outlet of the first sleeve is connected to the first U-shaped tube 508, and the other end of the first U-shaped tube is connected to the second sleeve 509. The second sleeve is provided with a breathable tube plug 510, a first filter unit 511 and a breathable tube plug 512. The first filter unit is filled with eight kinds of particles with a proportion of 12.5wt% and a particle size of 0.1mm-3mm, specifically: Cu loaded 2+ Zeolite, porous alumina particles loaded with MCM-48-NH2, and chitosan-Cu 2+ Medical stone, MnO-CoO loaded sepiolite, Cu + -NaY molecular sieve, loaded Ni 2+ -MOFs porous ceramic microspheres, loaded with Fe 2+-EDTA resin particles, activated carbon loaded with iron porphyrin. The air outlet of the second sleeve is connected to the second U-shaped tube 513, and the other end of the second U-shaped tube is connected to the third sleeve 514. The third sleeve is provided with a breathable pipe plug 515 composited with fluorosilane, a fixing frame 516, an air guide pipe 517, a second filter unit 518, a liquid injection port sealing plug 519, a fixing frame 520, an air guide pipe 521, a breathable pipe plug 522 composited with fluorosilane, a third filter unit 523, and a breathable pipe plug 524, wherein the second filter unit is a 0.5wt% NaOH aqueous solution dissolved with eight kinds of filter materials, and the concentration of the eight kinds of filter materials is 0.1wt% respectively, specifically: EDTA-2Na, Ni(II)-EDTA, cellulose, tea polyphenols, caryophyllene, vitamin E, selenium-enriched yeast, and β-cyclodextrin. In addition, the aqueous solution also contains a small amount of antibacterial agent. The third filter unit is cellulose acetate loaded with iron porphyrin and β-cyclodextrin, and then ten additional intakes are adsorbed, specifically: menthol, nicotine, arecoline, caffeine, rosemary, monk fruit extract, linalool, lily essential oil, pear extract, pipa extract. The first air branch pipe, the first sleeve pipe, the first U-shaped pipe, the second sleeve pipe, the second U-shaped pipe and the third sleeve pipe form a mouth suction branch. The second air branch pipe 525 in the air receiving section is connected to the fourth sleeve pipe 526, and the fourth sleeve pipe is provided with a second Tesla valve 527. The air outlet of the fourth sleeve pipe is connected to the third U-shaped pipe 528, and the other end of the third U-shaped pipe is connected to the fifth sleeve pipe 529. The fifth sleeve pipe is provided with a breathable pipe plug 530, a fourth filter unit 531, and a breathable pipe plug 532 compounded with PTFE. The fourth filter unit is filled with the same adsorption material as the first filter unit. The air outlet of the fifth sleeve is connected to the fourth U-shaped tube 533, and the fifth filter unit 534 is arranged in the fourth U-shaped tube. The fifth filter unit is a suspension of β-cyclodextrin, which contains 2.28 ml of PEG-600, 5.72 ml of triacetin, 0.05 g of tobacco flavor, 0.05 g of nicotine, 0.01 g of clove extract and 0.1 g of β-cyclodextrin. The fifth filter unit also has a sealing plug 535 for the injection port. The other end of the fourth U-shaped tube is connected to the sixth sleeve 536, and the sixth sleeve is provided with a PTFE composite air permeable tube plug 537, a sixth filter unit 538, and an air permeable tube plug 539. The sixth filter unit is a cylindrical porous filter element with a length of 5 mm, and its ingredients are: 6wt% porous silica gel loaded with EDTA-[Ch][Lys], 93.6wt% selenium-rich plant stems and leaves, 0.3wt% β-cyclodextrin and 0.1wt% cellulose, and volatile substances in tobacco extract, Xanthium sibiricum extract, passion fruit extract, rose essential oil, lavender essential oil, jasmine essential oil, osmanthus essential oil and magnolia essential oil are pre-adsorbed. The second airway, the fourth sleeve, the third U-shaped tube, the fifth sleeve, the fourth U-shaped tube and the sixth sleeve form a nasal suction branch.The gas distribution device is fixed in a cavity 541 of a cylinder 540. The cylinder is connected as a whole by a buckle with two halves on the left and right. The cylinder also includes two openable cavity covers. A battery 542 and its charging port are also provided in the cylinder cavity. A wire 543 connects the battery and the controller 544. A wire 545 connects the controller and passes through a fan base 546 and a fan rod 547 and then connects to a motor 548. The motor drives the fan blades 549 to rotate. The fan airflow flows out from a plurality of air outlets 551 in the cavity front cover 550. A plurality of air inlet holes 553 are also provided in the cavity rear cover 552. The fan airflow can continuously blow the cigarette butt combustion cone, not only blowing the sidestream smoke away from the user's nostrils and scalp pores in time, accelerating the air flow around the combustion cone, but also reducing the smoldering of cigarettes in an oxygen-deficient environment, thereby reducing harmful substances such as CO and NOx in the mainstream smoke. In the gas distribution device composition, the front end of the air inlet, the end of the mouth inhalation branch, the end of the nasal inhalation branch, the fan controller knob, and the battery charging port are all arranged outside the cylindrical cavity for easy operation by the user. When the user emits an inhalation airflow at the end of the mouth inhalation branch, the mainstream smoke of the cigarette enters the gas distribution device, one path of smoke enters the user's oral cavity through the mouth inhalation branch, and the other path of smoke reaches the user's nostrils through the nasal inhalation branch. The nicotine satisfaction of five smokers using the gas distribution device composition to smoke 5 puffs of cigarettes exceeded their nicotine satisfaction of smoking 8 puffs of the same cigarette in the conventional way, and the smoke flavor was stronger and fuller. A circular cigarette warehouse 554 is also provided on the surface of the cylinder, in which some medium-diameter cigarettes 555 and smaller-diameter cigarettes 556 are arranged and stacked, and corresponding cigarette outlets 558 and cigarette outlets 559 and a movable sealing cover are provided on the cigarette warehouse cover 557. A sundries bin 561 for placing matches 560 and other items is also provided inside the cylinder, and a corresponding bin cover 562 is provided on the cavity rear cover 552. A cigarette bin 565 for placing medium-diameter cigarette butts 563, small-diameter cigarette butts 564 and cigarette ashes is also provided inside the cylinder, and a corresponding bin cover 566 is provided on the cavity rear cover 552. A steel sheet 567 for igniting a ten-thousandth match by friction is also provided on the cavity rear cover. In addition, an independent sub-bin is provided in the cigarette bin 554 for each cigarette, and a corresponding cigarette outlet is provided on the cigarette bin cover 557. The cigarette can slide out naturally from the cigarette outlet or be taken out with the help of tools such as tweezers 568.The suction system 72 is used to detect the contents of TSNAs and BaP in the smoke from the snuff branch of each cigarette and the smoke from the mouth branch of each puff; the suction system 74 is used to detect the contents of tar, nicotine, CO and HCN in the smoke from the snuff branch of each cigarette and the smoke from the mouth branch of each puff; after removing the air collecting bag from the suction system 74, the contents of carbonyl compounds in the smoke from the snuff branch of each cigarette and the smoke from the mouth branch of each puff are detected; after removing the collector and the air collecting bag from the suction system 74, the number of free radicals in the smoke from the snuff branch of each cigarette and the smoke from the mouth branch of each puff are detected; after removing the air collecting bag from the suction system 74 and replacing the collector with an electrostatic collector tube, the contents of nickel, chromium and lead in the smoke from the snuff branch of each cigarette and the smoke from the mouth branch of each puff are detected; the suction system 82 is used to detect the content of NOx in the smoke from the snuff branch of each cigarette and the smoke from the mouth branch of each puff. In Comparative Example 5 and Example 5, the comparison results of the contents of tar, nicotine, CO, carbonyl compounds, NOx, HCN, TSNAs, BaP, nickel, chromium, lead and free radicals in the smoke when smoking cigarettes are shown in Table 3:

[0089] Table 3

[0090]

[0091] Detection experiment

[0092] 1. Quantitative detection device and method for multiple components in electronic cigarette smoke

[0093] Based on "GB 41700-2022 Electronic Cigarettes", "GB / T 41701-2022 Gas Chromatography for the Determination of Nicotine, Propylene Glycol and Glycerol in Electronic Cigarette Liquids" and "Migration of Heavy Metals in Metal Parts for Electronic Cigarettes, Tobacco Science and Technology, 2019", etc.

[0094] 1.1 Suction system

[0095] The suction system 61 is: the suction nozzle of the electronic cigarette 601 is inserted into the holder 602, and the smoke outlet of the electronic cigarette is connected to the collector 603 containing the filter and the smoking machine 604 containing the vacuum pump.

[0096] The suction system 62 is: based on the suction system 61, with the addition of a gas distribution device 605 and a Y-shaped tube 606.

[0097] The suction system 63 is: based on the suction system 61, two absorption bottles 608 containing absorption liquid 607 are added, and the absorption liquid is 15 ml of 20 vol% nitric acid solution.

[0098] The suction system 64 is: based on the suction system 63, with the addition of a gas distribution device 605 and a Y-type tube 606.

[0099] When testing the following items, the parameters of the electronic cigarette smoking machine are as follows: 200 continuous puffs of steam electronic cigarettes and CBD electronic cigarettes, and 4 continuous puffs of HNB electronic cigarettes, with a 30-second interval after each puff, and a puff capacity of 55ml. The filter is replaced every 20 puffs.

[0100] 1.2 Detection of nicotine

[0101] According to the suction system 61 or the suction system 62, the nicotine adsorbed on the filter of the collector is extracted with an isopropanol solution containing 0.3 mg / ml n-heptadecane, and detected by gas chromatography. According to the standard working curve, the nicotine content in the smoke of each puff of the electronic cigarette is calculated.

[0102] 1.3 Detection of carbonyl compounds

[0103] According to the suction system 63 or the suction system 64, 1 gram of 2,4-dinitrophenylhydrazine hydrochloride, 500 ml of acetonitrile, 4.8 ml of 85 wt% phosphoric acid and 535.2 ml of water are mixed to prepare a derivatization reagent, 25 ml of the derivatization reagent is respectively transferred to two absorption bottles as absorption liquid, and the carbonyl compounds in the flue gas are derivatized by the absorption liquid, and 5 ml of the solution is transferred from each absorption bottle to a 20 ml volumetric flask, 0.5 ml of pyridine is added, the volume is fixed with acetonitrile, and after filtering with a filter membrane with a pore size of 0.45 microns, it is determined by high performance liquid chromatography. According to the standard working curves of formaldehyde, acetaldehyde, acrolein and diacetyl, the contents of these carbonyl compounds in the flue gas during each puff of the electronic cigarette are calculated.

[0104] 1.4 Detection of chromium, nickel and lead

[0105] According to the suction system 63 or the suction system 64, 20 vol% nitric acid solution is used as the absorption liquid, and the ICP-MS instrument is used for detection. According to the standard working curves of chromium ions, nickel ions and lead ions, the contents of chromium ions, nickel ions and lead ions in the smoke when each puff of the electronic cigarette is taken are calculated.

[0106] 2. Suction system and method for quantitatively detecting multiple components in mainstream and sidestream cigarette smoke

[0107] According to "GB / T 16450-2004 Definition and standard conditions of conventional analysis smoking machine", "GB / T 19609-2004 Determination of total particulate matter and tar in conventional analysis smoking machine for cigarettes", "YC / T 185-2004 Determination of tar and nicotine in cigarette sidestream smoke", "GB / T 21130-2007 Determination of benzo[a]pyrene in total particulate matter of cigarette / smoke", "YC / T 246-2008 Determination of nicotine in tobacco and tobacco products by gas chromatography", "YC / T 254-2008 Determination of main carbonyl compounds in mainstream cigarette smoke by high performance liquid chromatography", "GB / T 23228-2008 Determination of tobacco-specific N-nitrosamines in total particulate matter of mainstream cigarette smoke by gas chromatography-thermal analysis", "YC / T YC / T 348-2010 Determination of nitrogen oxides in mainstream cigarette smoke - ion chromatography method", "YC / T 350-2010 Determination of hydrogen cyanide in sidestream cigarette smoke - continuous flow method", "YC / T 378-2010 Determination of carbonyl compounds in sidestream cigarette smoke - high performance liquid chromatography", "YC / T 379-2010 Determination of chromium, nickel, arsenic, selenium, cadmium and lead in mainstream cigarette smoke - inductively coupled plasma mass spectrometry", "GB / T 27525-2011 Determination of benzo[a]pyrene in cigarette / sidestream smoke / gas chromatography-mass spectrometry", "GB / T 28971-2012 Determination of tobacco-specific N-nitrosamines in sidestream cigarette smoke - gas chromatography-thermal energy analyzer method", "GB / T 23203.1-2013 Determination of moisture in total particulate matter of cigarettes Part 1: Gas chromatography", "DB45 / T 1495-2017 Determination of solid phase free radical content in mainstream cigarette smoke Electron spin resonance spectroscopy", "YC / T 253-2019 Determination of hydrogen cyanide in mainstream cigarette smoke Continuous flow method", etc.

[0108] 2.1 Suction system

[0109] The same type of cigarettes with filters were pretreated at 22°C and 60% relative humidity for 48 hours, and some cigarettes that met the requirements in terms of draw resistance, length and weight were selected for the following smoke component tests.

[0110] The suction system 71 is: inserting the filter of the cigarette 701 into the collector 702 containing the filter disc, connecting the flow meter and flow regulating valve 703, the smoking machine 704 containing the vacuum pump and the exhaust gas channel 705, so as to capture the mainstream smoke; a fishtail cover 706, a collector 707 containing the filter disc, a flow meter and flow regulating valve 708, a vacuum pump 709 and an exhaust gas channel 710 are also provided to capture the sidestream smoke.

[0111] The suction system 72 is based on the suction system 71 and has an additional gas separation device composition 711 .

[0112] The suction system 73 is: based on the suction system 71, two absorption bottles 713 containing absorption liquid 712 and air collecting bags 714 are added to capture mainstream smoke, and two absorption bottles 716 containing absorption liquid 715 and air collecting bags 717 are added to capture sidestream smoke.

[0113] The suction system 74 is based on the suction system 73 and has an additional gas separation device composition 711 .

[0114] The suction system 81 is: inserting the filter tip of the cigarette 801 into a holder 802 containing a filter disc, connecting a piston pump 803 of a smoking machine, a double-ball glass tube 804 filled with chromium trioxide-quartz sand, two absorption bottles 806 containing absorption liquid 805, and an exhaust gas channel 807 for capturing mainstream smoke; a fishtail cover 808, a holder 809 containing a filter disc, a piston pump 810 connected to a smoking machine, a double-ball glass tube 811 filled with chromium trioxide-quartz sand, two absorption bottles 813 containing absorption liquid 812, and an exhaust gas channel 814 are also provided for capturing sidestream smoke.

[0115] The suction system 82 is based on the suction system 81 , with an additional gas separation device composition 815 .

[0116] The parameters of the cigarette smoking machine are: after lighting the cigarette, take a 2-second puff followed by a 5.5-second interval, with each puff having a capacity of 35 ml. After taking 8 puffs on each cigarette, replace it with the next one in time, during which the filter can be replaced.

[0117] 2.2 Detection of TSNAs in flue gas

[0118] The filter disc and the fishtail cover in the trap are pre-treated with ascorbic acid by using the suction system 71 or the suction system 72. After smoking 20 cigarettes, the filter disc in the trap is extracted with CH2Cl2 and the inner wall of the fishtail cover is cleaned. The extract of the filter disc in the mainstream smoke trap is used as the mainstream smoke sample, and the extract of the filter disc in the sidestream smoke trap and the cleaning liquid of the fishtail cover are combined as the sidestream smoke sample. The two samples are concentrated by a rotary evaporator and then purified by a basic alumina chromatography column. The TSNAs content in each sample is determined by a gas chromatography-thermal energy analysis instrument. According to the standard working curve, the TSNAs content in the sidestream smoke of each cigarette and in each puff of mainstream smoke is calculated respectively.

[0119] 2.3 Detection of BaP in flue gas

[0120] After smoking 20 cigarettes using suction system 71 or suction system 72, BaP in the collector filter is extracted with cyclohexane, smoke condensate on the fishtail cover is first cleaned with methanol and then extracted with cyclohexane after the methanol is evaporated, the extract of the mainstream smoke collector filter is used as the mainstream smoke sample, the extract of the sidestream smoke collector filter and the extract of the inner wall of the fishtail cover are combined as the sidestream smoke sample, the two samples are concentrated by a rotary evaporator and purified by a solid phase extraction column, and the BaP content is quantitatively determined by gas chromatography-mass spectrometry, and the BaP content in the sidestream smoke of each cigarette and in each puff of mainstream smoke is calculated according to the standard working curve.

[0121] 2.4 Detection of tar, nicotine and CO in flue gas

[0122] 24 cigarettes are smoked by using the suction system 73 or the suction system 74. Nicotine in mainstream smoke is the sum of nicotine in the mainstream smoke collector and the absorption bottle; tar in mainstream smoke is the remainder of the total particulate matter in the mainstream smoke collector minus water and nicotine; gas collection bag 714 captures CO in mainstream smoke. Nicotine in sidestream smoke is the sum of nicotine in the sidestream smoke collector, in the absorption bottle and on the inner wall of the fishtail cover; tar in sidestream smoke is the total particulate matter in the sidestream smoke collector minus water and nicotine, plus tar on the inner wall of the fishtail cover; gas collection bag 717 captures CO in sidestream smoke. Isopropanol solution containing 0.3 mg / ml n-heptadecane is used as an extractant for the total particulate matter on the filter in the collector, an absorbent in the absorption bottle and a cleaning agent for the inner wall of the fishtail cover. After the puffing, the total particulate matter in the mainstream smoke collector and the sidestream smoke collector was determined by weight method; the moisture and nicotine in the sidestream smoke collector, the nicotine on the inner wall of the fishtail cover and the absorption bottle, and the moisture and nicotine in the mainstream smoke collector and the nicotine in the absorption bottle were determined by gas chromatography; the tar in the cleaning liquid on the inner wall of the fishtail cover was calculated by ultraviolet absorption spectroscopy; the CO in the two gas collection bags was determined by non-scattering infrared analyzer. According to their respective standard working curves, the contents of tar, nicotine and CO in the sidestream smoke of each cigarette and each puff of mainstream smoke were calculated respectively.

[0123] 2.5 Detection of HCN in flue gas

[0124] Using the suction system 73 or the suction system 74 without the gas collecting bag, the filter in the collector is pre-treated with the NaOH-ethanol / water solution, and 5 cigarettes are smoked. The HCN in the mainstream smoke is the sum of the HCN in the mainstream smoke collector and the absorption liquid; the HCN in the sidestream smoke is the sum of the HCN in the inner wall of the fishtail cover, the filter in the sidestream smoke collector, and the absorption liquid. The 0.1M NaOH aqueous solution is used as the extractant of the filter in the collector, the absorbent in the absorption bottle, and the cleaning agent of the inner wall of the fishtail cover. The extract of the filter in the mainstream smoke collector and the mainstream smoke absorption liquid are combined into the mainstream smoke sample, and the cleaning liquid of the inner wall of the fishtail cover, the extract of the filter in the sidestream smoke collector, and the sidestream smoke absorption liquid are combined into the sidestream smoke sample. Under slightly acidic conditions, cyanide ions in the two samples react with chloramine T to generate cyanogen chloride, which reacts with isonicotinic acid and hydrolyzes to generate glutaraldehyde compounds, which then react with 1,3-dimethylbarbituric acid to generate blue compounds, which are detected by absorbance at 600nm. Based on the standard working curve, the HCN content in the sidestream smoke of each cigarette and in each puff of mainstream smoke is calculated respectively.

[0125] 2.6 Detection of carbonyl compounds in flue gas

[0126] Dissolve 1.5 grams of 2,4-dinitrophenylhydrazine in 80 ml of acetonitrile, add 200 microliters of perchloric acid, and dilute to 100 ml with acetonitrile to prepare a derivatization reagent. Dissolve 2.5 grams of 2,4-dinitrophenylhydrazine in 800 ml of acetonitrile, add 2 ml of perchloric acid, and dilute to 1000 ml with acetonitrile to prepare the absorbent in the absorption bottle. Add 1 ml of derivatization reagent to the collector filter, use the suction system 73 or the suction system 74 without a gas collection bag, and smoke two cigarettes. Use 2 vol% pyridine-acetonitrile solution as the extractant, and combine the extractant after the mainstream smoke collector filter is soaked in the extractant and the absorption liquid in the absorption bottle as the mainstream smoke sample. The cleaning liquid after the inner wall of the sidestream smoke fishtail cover is cleaned with the absorbent, the extractant after the collector filter is soaked in the extractant, and the absorption liquid in the absorption bottle are combined as the sidestream smoke sample. The two samples were filtered through a 0.45-micron filter membrane and then concentrated using a rotary evaporator. The contents of carbonyl compounds were determined by high performance liquid chromatography. The total contents of these eight carbonyl compounds in the sidestream smoke of each cigarette and in each puff of mainstream smoke were calculated based on the standard working curves of formaldehyde, acetaldehyde, acetone, acrolein, propionaldehyde, crotonaldehyde, 2-butanone and butyraldehyde.

[0127] 2.7 Detection of free radicals in flue gas

[0128] The free radicals are quantitatively detected by using the suction system 73 or the suction system 74 without a trap and a gas collection bag. 20 ml of a 0.02 M tetrachloromethane solution of N-tert-butyl-α-phenylazone (PBN-CCl4) is placed in each of the four absorption bottles as an absorbent. After smoking a cigarette, the inner wall of the sidestream smoke fishtail cover is immediately eluted with tetrachloromethane, and the absorption liquid in the two absorption bottles is combined and fixed to 100 ml as a sidestream smoke sample. The absorption liquid in the other two absorption bottles is combined and fixed to 100 ml as a mainstream smoke sample, and is measured by an electron spin resonance spectrometer (ESR) to calculate the number of free radicals in the sidestream smoke of each cigarette and in each puff of mainstream smoke.

[0129] 2.8 Detection of heavy metals in flue gas

[0130] The absorbent in the absorption bottle is 20 ml of 10 vol% nitric acid. The gas collection bag is removed from the suction system 73 or the suction system 74 and the collector is replaced by an electrostatic collection tube. After smoking 10 cigarettes, the cleaning liquid used to clean the inner wall of the electrostatic collection tube of the mainstream smoke with methanol and the absorption liquid in the mainstream smoke absorption bottle are added to the digestion tank. After evaporating the methanol and other organic impurities, an appropriate amount of nitric acid and hydrogen peroxide are added, and then microwave digestion, transfer, and constant volume are used as mainstream smoke samples. The cleaning liquid used to clean the inner wall of the fishtail cover and the inner wall of the electrostatic collection tube of the sidestream smoke, as well as the absorption liquid in the sidestream smoke absorption bottle are added to another digestion tank. After evaporating the methanol and other organic impurities, an appropriate amount of nitric acid and hydrogen peroxide are added, and then microwave digestion, transfer, and constant volume are used as sidestream smoke samples. Nitric acid solutions of chromium, nickel and lead with different concentrations were prepared in advance as standard working solutions. Using inductively coupled plasma mass spectrometry, a standard working curve was prepared based on the quantitative relationship between mass-to-charge ratio intensity and element concentration, and the contents of chromium, nickel and lead in the sidestream smoke of each cigarette and in each puff of mainstream smoke were calculated respectively.

[0131] 2.9 Detection of NOx in flue gas

[0132] Using suction system 81 or suction system 82, three cigarettes are smoked. The mainstream smoke and sidestream smoke pass through their respective filter holders, double-ball glass tubes, and absorption bottles. The chromium trioxide-quartz sand in the double-ball glass tube oxidizes NO in the gas phase into NO2, which is then absorbed by the triethanolamine solution in the absorption bottle and converted into NO2. - and NO3 - After separation by ion exchange, the NOx content in the sidestream smoke of each cigarette and in each puff of mainstream smoke is calculated based on the standard working curve.

[0133] In the above 2.2-2.9, the suction system 71, the suction system 73 and the suction system 81 are used to detect multiple components in the cigarette smoke in comparative example 5. When the suction system 72, the suction system 74 and the suction system 82 are used to detect multiple components in the cigarette smoke in Example 5, the mainstream smoke is equivalent to the mouth-inhaled branch smoke, and the sidestream smoke is equivalent to the nasal branch smoke.

[0134] The technical effects of the above embodiments are:

[0135] Compared with Comparative Example 1, Example 1 utilizes a gas separation device to divide the gaseous substance released by the medical nebulizer into two paths, and accelerates them through a Tesla valve to penetrate into the patient's oral cavity and nasal cavity respectively, which helps the medical nebulizer to treat lower respiratory tract diseases and improve user experience.

[0136] Compared with Comparative Example 2, in Example 2, the user ingests the same smoke released by HNB through the mouth and nose at the same time, simulating the user ingesting mainstream smoke and sidestream smoke at the same time when smoking a cigarette, thereby narrowing the difference in smoking experience between electronic cigarettes and cigarettes.

[0137] Compared with Comparative Example 3, two EDTA-[Ch][Lys] polypropylene fiber filter units are set in Example 3. When the user takes each puff, the reduction of the three heavy metal ions in the CBD electronic cigarette aerosol is 45.08%-51.32%.

[0138] Compared with Comparative Example 4, four filter units are provided in Example 4. When the user takes each puff, the three heavy metal ions in the electronic cigarette smoke are reduced by 57.52%-64%, and the four carbonyl compounds are reduced by 48.36%-52.99%.

[0139] The reduction of the main harmful substances in the mainstream smoke of each cigarette in Example 5 is 56.57%-100% compared with that in Comparative Example 5. The reduction of the main harmful substances in the sidestream smoke of each cigarette in Example 5 is 93.38%-99.23% compared with that in Comparative Example 5. The harm reduction effect of the gas-splitting device composition on the cigarette smoke ingested by the user exceeds that of the prior art. The main reasons are: ⑴ The fan airflow in the gas-splitting device composition can blow the cigarette sidestream smoke away from the user's nostrils and scalp pores in time, and can also accelerate the air flow around the combustion cone, thereby reducing tar, CO, NOx and other harmful substances in the mainstream smoke. ⑵ The mouth-inhaled branch smoke or the nasal branch smoke are both diversions of the mainstream smoke of each cigarette. ⑶ The six filter units provided in the gas-splitting device composition contain a variety of adsorption materials, which can physically adsorb and chemically react to selectively intercept harmful substances in the smoke, specifically:

[0140] Load Cu 2+Zeolite can intercept nitrosamines in flue gas. The principle is that the oxygen in the NN=O functional group of the flat-plate nitrosamine carries a negative charge through structural resonance, which is strongly attracted by the cylindrical electrostatic field formed by the movement of cations in the zeolite pores, causing the NN=O functional group of the nitrosamine to insert into the zeolite pores. In addition, Cu 2+ The "inducing effect" not only promotes the above-mentioned interception, but also catalyzes the degradation of nitrosamines.

[0141] The porous alumina particles loaded with MCM-48-NH2 can intercept HCN in the flue gas. The principle is that the amino groups in MCM-48-NH2 can form covalent bonds with HCN.

[0142] Chitosan-Cu 2+ Medical stone can intercept eight carbonyl compounds in flue gas. The principle is that the amino and hydroxyl groups in chitosan molecules can form hydrogen bonds with carbonyl compounds, and the amino groups can also condense with carbonyl compounds to form Schiff bases; Cu 2+ The lone pair of electrons in carbonyl compounds can complex the carbonyl and olefin bonds in carbonyl compounds.

[0143] MnO-CoO-loaded sepiolite and Fe(II)-EDTA-loaded resin can intercept NOx in flue gas. The principle is: the metastable metal ions can catalytically reduce NOx to N2; the Fe in Fe(II)-EDTA 2+ Can complex NOx.

[0144] Chitosan and EDTA can intercept heavy metal ions in flue gas. The principle is that the amino and hydroxyl groups in chitosan molecules can complex heavy metal ions; the two nitrogen atoms and the hydroxyl oxygen atoms on the four carboxyl groups in the EDTA molecules can complex heavy metal ions, especially in the liquid phase, which can completely intercept heavy metal ions.

[0145] Cu + -NaY molecular sieve and loaded Ni 2+ -MOFs porous ceramic microspheres can intercept CO in flue gas. The principle is: Cu + or Ni 2+ They can all form metal carbonyl complexes with CO, which belongs to π-bond complex adsorption.

[0146] Alkaline carriers can intercept acidic hazards such as HCN in flue gas. The principle is: acid-base neutralization reaction.

[0147] The suspension of β-cyclodextrin can intercept tar, nitrosamines and carbonyl compounds in flue gas. The principle is that the glucose hydroxyl groups on the surface of β-cyclodextrin bind to tar, nitrosamines and carbonyl compounds through hydrogen bonds.

[0148] Activated carbon loaded with iron porphyrin can intercept benzopyrene, CO, HCN, NOx, nitrosamines, carbonyl compounds and tar in flue gas. The principle is that the molecules of porphyrin compounds have a rigid structure and a large surface area, which can have a strong π-π interaction with polycyclic aromatic hydrocarbons such as benzopyrene, and the iron ions in iron porphyrin can interact with CO, NOx, CN - The isocoordinated groups form a complex.

[0149] Tea polyphenols, caryophylle, vitamin E and other antioxidants and selenium-rich yeast can remove free radicals in smoke. The principle is: antioxidants use electrons to neutralize the lone pair of electrons in free radicals to make them inactive; selenium produces an attachment and addition effect on free radicals and forms selenium-added free radicals that are easy to decay, shortening the survival time of free radicals. In addition, when the free radicals in cigarette smoke pass through the gas separation device, the mouth and nose branches are tortuous, which prolongs the time for the free radicals to reach the mouth and nose, and can also cause some free radicals to quench themselves.

[0150] The filter unit can not only intercept harmful substances in the smoke, but also slowly release the additional intake that is pre-adsorbed or adsorbed on site. The principle is: ⑴ The airflow of the mouthpiece promotes the desorption of the additional intake; ⑵ The adsorption heat generated when the filter unit adsorbs harmful substances in the smoke promotes the desorption of the additional intake; ⑶ The filter unit adsorbs the additional intake mainly by the intermolecular force, which is usually smaller than the chemical bond binding force when the filter unit selectively adsorbs harmful substances in the smoke. Therefore, the adsorption sites in the filter unit will gradually be occupied by harmful substances in the smoke, causing the additional intake to desorb. The desorbed additional intake can not only compensate for a part of the nicotine and aroma substances lost by the adsorption of the filter unit, but also increase other substances lacking in the cigarette smoke.

[0151] In Example 5, the cellulose acetate loaded with iron porphyrin and β-cyclodextrin in the third filter unit can not only intercept harmful substances in the smoke, but also slowly release the additional intake substances adsorbed in advance. For example, menthol, nicotine, arecoline, caffeine, rosemary, monk fruit extract, linalool, and lily essential oil, pear extract volatiles and pipa extract volatiles that are beneficial to the lungs are slowly released into the smoke of the mouth inhalation branch. The suspension of β-cyclodextrin in the fifth filter unit can slowly release the tobacco flavor, nicotine and cloves adsorbed on site into the smoke of the nasal inhalation branch. The porous filter element in the sixth filter unit can slowly release the volatiles in the pre-adsorbed tobacco extract, passion fruit extract, rose essential oil, lavender essential oil, jasmine essential oil, osmanthus essential oil, and the volatiles of Xanthium sibiricum extract and magnolia essential oil that are beneficial to the nasal cavity into the smoke of the nasal inhalation branch.

[0152] In Example 1, the ratio of the gaseous substances released by the medical atomizer to the mouth inhalation branch and the nasal inhalation branch is about 1:1. In Example 5, although the structure of the second filter unit similar to that of a hookah increases the airflow resistance of the mouth inhalation branch, the suction airflow emitted from the end of the mouth inhalation branch still allows more cigarette smoke to enter the user's oral cavity through the mouth inhalation branch. Analyzing the data of Example 5, the distribution ratio of the mouth inhalation branch and the nasal inhalation branch to the mainstream cigarette smoke is about 85:15.

[0153] In Example 2, a Tesla valve is only provided in the nasal inhalation branch, in Example 3, a baffle is provided in the air receiving section, and in Example 4, a fan is provided in the air receiving section. These three methods can increase the proportion of gaseous substances released by the mouth-suction piece entering the nasal inhalation branch and reduce the proportion entering the mouth-suction branch, which is beneficial for improving the nicotine satisfaction efficiency and aroma of HNB electronic cigarettes, CBD electronic cigarettes and steam electronic cigarettes and reducing harmful substances in the smoke from entering the lungs.

[0154] In Example 5, the sidestream smoke of the cigarette is blown away by the fan airflow, which not only improves the air flow around the burning cone of the cigarette butt, reduces the harmful substances such as CO and NOx in the mainstream smoke of the cigarette, but also reduces the harm of the sidestream smoke to the user. The nasal branch smoke is only about 15% of the mainstream smoke of the cigarette, and the reduction of the main harmful substances in the sidestream smoke is 93.38%-99.23%. Therefore, in addition to releasing the nasal branch smoke next to the nostrils, the user can also directly inhale the nasal branch smoke through a nasal mask or inserting it into the nostrils, and the nostril hair and nasal mucosa can continue to filter the smoke harmful substances entering the nostrils through the nasal branch.

[0155] The gas distribution device and the composition containing the gas distribution device can also compensate for the nicotine adsorbed by the filter unit. For example, in Example 4, the nicotine is pre-adsorbed by the filter unit, so that the total amount of nicotine in the mouth inhalation branch and the nasal inhalation branch during each puff of the user is increased by 5.56% compared with that in Comparative Example 4. In Example 5, the nicotine in the smoke in the mouth inhalation branch per puff is increased by 25% compared with that in the mainstream smoke in each puff of Comparative Example 5. Although the nicotine in the smoke in the nasal inhalation branch of each cigarette is reduced by 84.49% compared with the sidestream smoke of the cigarette, the adsorption unit in the nasal inhalation branch can also slowly release the pre-adsorbed nicotine to the user's nasal cavity.

[0156] In the above embodiment, the main components of the gas distribution device are: the air receiving section connected to the oral suction piece, the mouth suction branch and the nasal suction branch, and at least one Tesla valve is provided in the gas distribution device. The objects forming the composition with the gas distribution device are: nasal suction mask, filter material, color developer, additional intake, air permeable pipe plug, cylinder with air inlet and air outlet, battery, fan, cigarette stick, match, cigarette butt bin, etc. In addition, the composition containing the gas distribution device can also include other objects that can enhance the user's suction experience, dopamine secretion or convenience, including but not limited to: display, heating device, music, 40 Hz gamma wave or flash stimulation, whistle, lighter, flashlight, breath freshener, etc. After the cylindrical cavity space is appropriately enlarged, these objects can be placed in the composition of the gas distribution device.

[0157] In addition, the ends of the nasal inhalation branch and the oral inhalation branch can also be made of antibacterial materials or hydrophobic coatings.

[0158] In addition, the gas distribution device and the composition containing the gas distribution device may also have other shapes, either partially or as a whole. For example, when combined with a medical atomizer, shapes such as cartoons, animals, and plants can increase the fun of use for children; when combined with oral inhalation devices such as tobacco and electronic cigarettes, shapes such as trademarks or harm reduction logos can increase publicity.

[0159] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gas separation device, characterized in that: The gas separation device includes an air receiving section connected to the oral suction piece, a mouth suction branch and a nasal suction branch. At least one Tesla valve is provided in the gas separation device. The gas released by the oral suction piece is divided into two paths by the gas separation device. One path of gas enters the user's oral cavity from the mouth suction branch, and the other path of gas enters the user's nasal cavity from the nasal suction branch or is released near the user's nostrils.

2. The gas separation device according to claim 1, characterized in that: The mouth-suction piece is one of: a medical atomizer, a non-medical electronic atomizer, a steam electronic cigarette, a heat-not-burn electronic cigarette, a burning cigarette, a dry tobacco pipe, and a hookah utensil.

3. The gas separation device according to claim 1, characterized in that: The gas separation device is further provided with at least one filter unit, and the filter unit is provided with one or more of filter material, additional intake and color developer.

4. The gas separation device according to claim 3, characterized in that: The filter material is: polypropylene fiber loaded with ethylenediaminetetraacetic acid-choline-lysine ionic liquid, sepiolite, MCM-41 molecular sieve, medical stone loaded with chitosan-copper ions, activated carbon loaded with iron porphyrin, zeolite loaded with copper ions, porous alumina particles loaded with MCM-48-NH2, sepiolite loaded with manganese oxide-cobalt oxide, NaY molecular sieve loaded with cuprous ions, porous ceramic microspheres loaded with nickel ions-metal organic framework, and ferrous ions-ethylenediaminetetraacetic acid. The invention discloses a method for preparing the present invention and the method for preparing the present invention. The invention discloses a method for preparing the present invention and the method for preparing the present invention. The invention discloses a method for preparing the present invention and the method for preparing the present invention. The invention discloses a method for preparing the present invention and the method for preparing the present invention. The invention discloses a method for preparing the present invention and the method for preparing the present invention. The invention discloses a method for preparing the present invention and the method for preparing the present invention. The invention discloses a method for preparing the present invention and the method for preparing the present invention.

5. The gas separation device according to claim 3, characterized in that: The additional intake is a combination of at least one of menthol, nicotine, arecoline, caffeine, rosemary, monk fruit extract, linalool, lily essential oil, pear extract, pipa extract, tobacco essence, clove extract, tobacco extract, Xanthium sibiricum extract, passion fruit extract, rose essential oil, lavender essential oil, jasmine essential oil, osmanthus essential oil, and magnolia flower essential oil.

6. The gas separation device according to claim 3, characterized in that: The developer is a combination of at least one of meso-tetrakis-(p-sulfophenyl)porphyrin, tetrakis(4-methoxy-4-sulfonic acid phenyl)porphyrin, tetrakis(4-methoxy-3-sulfonic acid phenyl)porphyrin, tetraphenylporphyrin, meso-tetrakis(4-chlorophenyl)porphyrin, meso-tetrakis(p-hydroxyphenyl)porphyrin, meso-tetrakis(4-nitrophenyl)porphyrin, 1-(2-pyridylazo)-2-naphthol, and 4-(2-pyridylazo)resorcinol.

7. The gas separation device according to claim 1, characterized in that: The gas separation device is also provided with at least one air-permeable pipe plug.

8. The gas separation device according to claim 7, characterized in that: The vent plug is compounded with a liquid-repellent material, and the liquid-repellent material is a combination of at least one of fluorosilane, polytetrafluoroethylene, and polypropylene.

9. A composition comprising a gas separator, characterized in that: The composition is provided with a gas separation device as described in any one of claims 1 to 8.

10. The composition containing a gas separator according to claim 9, characterized in that: The composition further comprises one or more of a cylinder provided with air inlet and air outlet, a battery, a fan, a cigarette stick, a match, and a cigarette butt bin.

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