204results about How to "To achieve the effect of purifying the air" patented technology

Disclosed is an inorganic medicine, particularly modified montmorillonite, method for preparing the same and use thereof. The said modified montmorillonite means that dioctahedron of natural montmorillonite is not destroyed and basic chemical composition for the same is not changed, and the microstructure stacked from dioctahedron layer is changed to decrease the thickness of stacking layer and to expose and increase the end face charge and the interlayer charge of montmorillonite, thereby resulting in its lower degree of C axis order. The present medical use of montmorillonite is thus significantly strengthened, particularly the reversal treatment effect on chronic atrophic gastritis. Also disclosed are a medicine composition containing modified montmorillonite and the reversal treatment effect of natural montmorillonite on chronic atrophic gastritis.

The invention discloses an air filtering medium material comprising bird nest type nano fiber materials. The bird nest type nano fiber materials are bird nest type particles which are formed by interweaving nano fibers with multiporous structures and nano particles; the nano particles consist of the same type or different types of substances which form the bird nest type nano fiber materials; furthermore, the bird nest type nano fiber materials can be combined with other active particles to form the multifunctional composite air filtering medium material. Moreover, the invention also discloses an air filtering medium and an air filter which comprise the air filtering medium material as well as an air filtering method adopting the air filter. The air filtering medium material disclosed by the invention can effectively filter toxic gases, including more than 50 types of organic volatile matters, in air; meanwhile, the air filtering medium material can adsorb particle pollutants in air and remove peculiar smell, so that a satisfactory air purification effect can be achieved by one material.

The invention discloses a mask with a detection device. The concentration of microparticles (pm2.5 and the like) and other harmful gas in gas in the closed cavity formed between a mask body and the face of a person can be measured through the detection device, and thus the filtering effect can be learnt. A filtering device is adjusted according to a microparticle detection result, and thus the protection performance and the wearing feeling of the mask are perfectly combined.

The invention discloses a double piston crank type dust reducer. The upper end of a device body is fixedly connected with a water purification tank, the upper end of the water purification tank is communicated with a water injection port, the left and right sides of the upper portion of the device body are respectively provided with a left spray chamber and a right spray chamber, the lower portionof the device body is provided with a driving motor, the driving motor is connected with a power source and a switch through a wire, and the upper portion of the driving motor is rotatably connectedto a driving shaft; a bearing of the driving shaft is rotatably connected to the device body, the upper portion of the driving shaft is fixedly connected with a crankshaft, a first connecting rod anda second connecting rod are respectively sleeved with the middle of the crankshaft, and the left end of the first connecting rod is rotatably connected to a first piston plate. The device reciprocatesby the first piston plate to continuously spray the water in the water purification tank to reduce dust, a rotating nozzle is provided with a spiral micro tube, the rotating nozzle rotates under thewater pressure reaction force, the spraying range is wider, and a second piston plate adsorbs dust contained in gas through the water effect in the water purification tank, thereby purifying the air and achieving double-effect dust removal.

The invention relates to a device for purifying air. An air cleaning machine comprises a groove body, wherein an air inlet is connected with a pipeline; the pipeline extends to the bottom of the groove body; a pipe orifice of one end, which is positioned at the bottom of the groove body, of the pipeline is enclosed; a pipe wall is provided with micropores; an air inlet hole is provided with a guiding device for guiding air into the pipeline; an air bubble guide plate which is used for covering the bottom of the groove body and is provided with an air dissipation port is further arranged in the groove body; the micropores of the pipeline are positioned below the air bubble guide plate; the air dissipation port of the air bubble guide plate is formed in one side of an air outlet of the groove body; the air bubble guide plate is arranged obliquely; and the air dissipation port is formed in a highest position. According to the air cleaning machine, air is introduced into water and is partitioned into micro air bubbles, and the micro air bubbles are fully contacted with water, so that an air purifying effect is achieved; and only water is used for purifying air, so that the cost of a purifying medium is low, and replacement is convenient.

The invention relates to a method for preparing photocatalyst nanometer wood-plastic boards. The method comprises the following steps: a) 50 to 100 portions by weight of wood meal and 2 to 4 portions by weight of aluminum-zirconium treatment agent are added in turn to a horizontal stirrer and stirred for 2 to 3 hours at a temperature between 100 and 120 DEG C; b) the treated wood meal and resin are put into a high-speed kneader in the mass ratio of 1:2, mixed with 7 to 40 portions by weight of additive, and are stirred for 10 to 15 minutes at the temperature between 100 and 120 DEG C, unloaded to a low-speed mixer and stirred to normal temperature; c) the mixed materials are put into a board extrusion device and subjected to vacuum and cooling setting and two-roller calendering setting so as to product a board, and the board is cut with fixed-length; and d) the surface of the board is sprayed with a layer of photocatalyst nanometer material, so as to obtain a finished product. The method has the advantages of low cost, extensive resource and good decorative effect, and more importantly, the method can utilize natural light to sterilize, thereby achieving the effect of purifying air.

The present invention relates to one cyclonic separator and one cyclonic separating set with the cyclonic separator. The cyclonic separating set includes one first casing, one second casing off-axis connected to the first casing with an ash falling port in the joint between these two casings. At least one part of the second casing has distance from the side wall to the axis of the first casing greater than that from the side wall of the first casing to the axis of the first casing, so that dust containing airflow is decelerated after flowing into the second casing, fine dust will stay and high air purifying effect will be reached.

The invention provides a novel air purifying agent and a preparation process thereof. The novel air purifying agent is prepared from components as follows: nano titania, nano zinc oxide, a graphene oxide emulsion, modified sepiolite, modified zeolite, activated carbon, an activator, nitrate, butyl titanate, an ethanol solution, a dispersant and deionized water. The air purifying agent is preparedwith a simple preparation method, is good in stability and high in adsorption rate and can effectively remove harmful gases in the air, kill bacteria in the air, purify air and keep the indoor air fresh.

The invention discloses a respirator used for a transformer. The respirator used for the transformer comprises a shell body, wherein the upper end of the shell body is connected with an installation flange, the lower end of the shell body is connected with an oil cup, a ventilating interlayer is arranged between an inner cavity of the oil cup and an inner cavity of the shell body, a gas entrance and exit is arranged at the lower end of the oil cup, allochroic silicagel adsorbent is arranged in the shell body, activated carbon adsorbent is arranged below the allochroic silicagel adsorbent and above the ventilating interlayer to form a double-layer absorption structure, and the shell body is a cylindrical glass container. Due to the fact that the activated carbon adsorbent which is strong-acid-resistance, strong-alkali-resistance, and not easy to break, and can stand water logging, high temperature and high pressure is arranged below the allochroic silicagel adsorbent, in process of working, a capillary tube of a pore structure with highly-developed activated carbon forms a strong adsorption capacity field, and when the capillary tube is touched by gaseous pollutants, the strong adsorption capacity field around activated carbon holes immediately absorbs gas molecules into the holes so as to achieve the effect of gas purifying. The strong adsorption capacity field protects the transformer, simultaneously and effectively prevents toxic substances from leaking, and protects environment.

The invention discloses a high-quality and low-cost modified active carbon air filtering material for an air conditioner. The high-quality and low-cost modified active carbon air filtering material is characterized by being prepared from the following raw materials in parts by weight: 130-140 parts of active carbon, 24-29 parts of corn cobs, 2-3 parts of isopropanol, 1-2 parts of camellia seed oil acid, 1-2 parts of potassium sodium tartrate, 2-3 parts of citric acid, 2-3.5 parts of potassium iodide, 11-12 parts of kieselguhr, 2.5-4 parts of acetic acid, 0.5-1 part of thiourea, 0.8-1.3 parts of sodium tripolyphosphate, 0.5-0.8 part of potassium sorbate, 4-6 parts of an adsorption auxiliary and a property amount of water. According to the high-quality and low-cost modified active carbon air filtering material, corn cob powder and the kieselguhr carry out activation on active carbon; by the adding of the adsorption auxiliary, the material is of various hole structures and has a large specific surface area, so that harmful gas such as formaldehyde and benzene which are free in air can be effectively removed, and the effect of purifying the air is achieved. A technology is simple, and the cost is low; the prepared active carbon filtering material is high in quality and can be repeatedly used.

The invention discloses an air conditioning system with an air purifying function. A cooling and heating air conditioning device and an air purifying and dehumidifying device are arranged in an air conditioner housing, the cooling and heating air conditioning device comprises a closed cooling and heating oil tank, the exterior of the cooling and heating oil tank is matched with a plurality of semiconductor cooling and heating chips transferring heat with the cooling and heating oil tank, the cooling and heating oil tank is connected with one end of an oil outlet pipe through a high-temperature resistant oil pump, the other end of the oil outlet pipe is connected with an air-conditioner energy dissipater, the air-conditioner energy dissipater is connected with one end of an oil return pipe, and the other end of the oil return pipe is connected with the cooling and heating oil tank through hollow heat radiators of the semiconductor chips; the air purifying and dehumidifying device comprises a condensate water collection tank provided with a water collection pipe and a water feed pipe, the water collection pipe is connected with the lower portion of the air-conditioner heat dissipater and collects condensate water, the water feed pipe is connected with the upper portion of a water filter screen and inputs water to the same to form a water curtain, and the bottom of the water filter screen is connected with the condensate water collection tank through a water return pipe. The air conditioning system has the advantages of energy conservation, environment friendliness and air purification and dehumidification functions.

The invention discloses a novel air purifier based on a thermophoresis effect, which comprises an air purifying chamber, an air inlet, a heater, a negative ion generator, a grain catcher and an air outlet, wherein the air inlet is located on the upper part of the air purifying chamber; the heater is arranged on the upper part in the air purifying chamber; the negative ion generator is arranged on the lower part in the air purifying chamber; the grain catcher is located on the lower part of the negative ion generator; the air outlet is located at the bottom of the air purifying chamber; the grain catcher is a superfine glass fiber; and the aperture is 0.1-0.3 microns. Under the thermophoresis effect, PM2.5 grains are electrified and accelerated to fall under the action of the negative ion generator and are collected by the grain catcher, so that the absorbing rate of the PM2.5 grains reaches 30-50%.

The invention discloses an air processing system. Air in the environment is sucked and sent to a container through an air inlet by an exhaust device according to a certain flow rate; an air passage is located above the liquid level in the container; suspended substances in air are absorbed by the liquid level of the liquid in the flowing process of air in the passage, and finally air is exhausted through an air outlet. Polluted air in the environment is sucked into the system through an exhaust device and blown to the liquid level of the liquid to circulate above the liquid level; in the process, harmful substances such as suspended substances, smell, and the like are absorbed and precipitated by the liquid to achieve the effect of air purification, and finally, clean air is exhausted to the environment. The invention has simple and flexible principle and simple structures, is carried out just by replacing liquid regularly, saves energy and reduces consumption, so that users can obtain a comfortable, clean and fresh air environment.

The invention relates to air purifiers, and concretely relates to a water adsorption type air purifier which realizes purification of air and solves the problems that mechanical filtering equipment in a conventional air purifier is inconveniently to clean and the filtering effect is not good. The water adsorption type air purifier comprises a water tank 1, an air purification box housing 5, an air outlet and a fan 3, a roller type filter screen 4 is disposed above the water tank 1, the air outlet 3 is arranged on the air purification box housing 5, an air inlet and a fan 2 are arranged at the outer side of the cylindrical air purification screen 4, the side end of the cylindrical air purification screen 4 is connected with a rotating shaft 6, and the rotating shaft is connected with a motor 7 via a shaft coupling, and vanes 8 of the cylindrical air purification screen 4 are provided with filter pores. The purifier employs a gas film-forming manner, helps to greatly improve the exchange rate of air and a liquid and enable air to be fully contacted with water, and thus the purifier possesses extremely high purification efficiency and humidification efficiency, and has the performances obviously better than those of market water-washing air purifiers employing other water washing design manners. The air purifier is compact in structure, small in volume, concise, beautiful and elegant in appearance, simple to control, and convenient for usage and maintenance.

The invention discloses a new-energy air purification device capable of governing haze and belongs to the technical field of haze governing devices. The air purification device comprises a street lamp and further comprises a solar energy and wind energy combined power generation system and an air purification device body; a support pipe of the street lamp is sleeved with the air purification device body; filter nets of the air purification device body sequentially include a fiber filter net, a first high-efficiency particulate air (HEPA) filter net, a second HEPA filter net and a cold catalyst filter net from outside to inside; and fans are arranged in the air inlet position of an air channel of the air purification device body. The purport of the design is that the device is easy to mount, dismount and change and low in cost, the overall device is designed to be in a triangular prismatic frustum shape, the filter nets are mounted in fixed grooves and are very convenient to change, and meanwhile, the filter nets are long in service life, so that the economic cost is reduced on the premise that all functions are efficient. The device can be applied to the street lamp as well as other public facilities, and then the purpose of large-area haze removal can be achieved.

A method for purification and separation of inorganic mineral, especially for purification and separation of montmorillonite from natural bentonite is provided. The said method is simple, and uses high-speed centrifugal device to well solve the problems present in purification of montmorillonite that a-quartz and cristobalite are difficult to be separated and removed and purified slurry is difficult to be concentrated and dehydrated. The purity of montmorillonite thus obtained is not less than 95%.

The invention relates to the technical field of air purification, and discloses an air freshening and purifying agent. The agent comprises the following raw materials by weight: 10-15% of tea dregs, 5-10% of seaweed, 5-10% of Eucalyptus essential oil, 10-15% of tourmaline, 5-10% of activated carbon powder, 1-5% of an active agent, 5-10% of bentonite, 5-15% of a binder and the balance of water. The invention adopts mixed usage of tea dregs, seaweed and tourmaline, turns waste tea dregs into values, and has the advantages of easily available raw materials, low cost, reasonable formula, long time maintenance of effective components and convenience for usage; and the agent can effectively adsorb formaldehyde, benzene, TVOC and other harmful gases to purify the air, and is capable of bacteriostasis and sterilization.

The invention relates to a process for manufacturing anion fiber environment-friendly socks. The process comprises the steps of matching anion functional viscose, white cotton and natural colored cotton according to a certain mass proportion, then mixing the anion functional viscose, the white cotton and the natural colored cotton together in a mode of staggered arrangement, and obtaining perspiration-absorbing and breathable yarn through drawing, roving, spinning and spooling, wherein the yarn comprises, by mass, 17-19.2% of the anion functional viscose, 58-64% of the white cotton and 18-22% of the natural colored cotton. By means of the process, the obtained socks have permanent anion emitting function, great biont emitting performance and excellent anti-bacterial and bacteria-killing performance, a variety of microelements required by a human body can be released, the deodorization effect can be achieved, thereby the effects of air purification and interface activity are achieved, no harm is caused to the environment and the human body, and the health and environment protection are achieved.

The invention relates to an air purifier, and in particular relates to a water-washing air purifier aiming at solving the problems that mechanical filter equipment of an existing air purifier is inconvenient to clean and has a poor filter effect. The water-washing air purifier comprises a shell (4) with an air inlet (3) and an air outlet (8), wherein fan blades (9) are arranged on the air inlet (3); a water tank (5) is arranged at the inner bottom of the shell (4); a water pump (10) is arranged in the water tank (5) and is connected with a sprayer (12) which is arranged at the inner top of the shell (4) through a pipeline (11) and is used for forming sprayed water into a water curtain wall (13) covering the air inlet (3); a water filter (7) for collecting circulating water is arranged below the sprayer (12); and the water outlet of the water filter (7) is communicated with the water tank (5). The air purifier disclosed by the invention is reasonable in design, simple in structure, energy-saving, environment-friendly, safe, reliable, and low in cost.

The invention discloses anion decoration paper. The anion decoration paper comprises impregnated paper, and also comprises an anion concentrated solution, wherein the anion concentrated solution is uniformly smeared on the surface of the impregnated paper, the anion concentrated solution is prepared from the following components by volume percent: 30 to 70 percent of distilled water, 20 to 50 percent of transparent water-soluble anion powder, 5 to 15 percent of water-soluble transparent resin glue and 2 to 8 percent of volatile aid, and the sum of volume percent of all components of the aniondecoration paper is 100 percent. The invention also discloses an anion plate using the anion decoration paper. The anion plate comprises the anion decoration paper, and also comprises a base materiallayer, wherein the anion decoration paper is laid above the base material layer, and the base material layer is closely connected with the anion decoration paper. The anion decoration paper disclosedby the invention is simple in structure, high in anion release capacity and convenient to produce and manufacture; and the anion plate utilizes the anion decoration paper, and also has the advantagesof high air purification capacity convenience in production and manufacturing, and the like.

The invention relates to a method for producing negative oxygen ion powder by using monazite and application of the negative oxygen ion powder, and belongs to the technical field of monazite processing. By modification treatment of monazite material, tourmalinite and barium salt, the negative oxygen ion powder is obtained by modification coating. The application fields of monazite are broadened. The raw materials used in the invention include monazite, tourmalinite and common natural barium salt undergo pretreatment and coating compounding to form the product. The production process is simpleto operate, and can be promoted in the field. The environmental problem of tailing stacking due to monazite refinement can be alleviated, and high economic value can be created.

The invention discloses a manufacture method of sterilization formaldehyde-removing wallpaper, belonging to the technical field of functional building decoration material manufacture. The manufacture method comprises the following characteristics that: 1, the wallpaper is produced by using the known rolling process productive technology; 2, a wallpaper laminated structure comprises a protective layer and a paper layer according to the top down sequence, the protective layer and the paper layer are adhered by using an adhering agent; 3, design and color patterns of the wallpaper are printed on the paper layer; and 4, a nano titanium dioxide photochemical catalyst is added in the protective layer of the wallpaper, formaldehyde and volatile organic compounds (VOC) are decomposed by using a photocatalysis principle, bacteria are killed and bacterium bodies can be decomposed. The sterilization formaldehyde-removing wallpaper manufactured by using the method has the advantages of simple production process, simple laminated structure and low production cost, and has a function of purifying air, such as sterilizing, removing formaldehyde and the like; the cleanness of the wallpaper can be kept a certain extent, and frequent cleaning is not needed, thus the wallpaper has a certain self-cleaning function. Proved by sterilization experiments, the wallpaper has bacterium killing rate reaching 60 percent when being irradiated by natural light.

The invention provides a ventilation system using solar energy and a building thereof. The cold source comprises air, and the air is heated and then conveyed into building rooms, thereby forming an air supply system. The ventilation system further comprises a filtering module which is used for filtering the inlet air, the filtering module is arranged in an air inlet channel, and a primary effect filter, an electrostatic precipitator, an activated carbon filter and a high efficiency filter are sequentially arranged in the filtering module; the primary effect filter is one or more of non-woven fabric, nylon net, fluffy fiberglass felt, plastic net or metal mesh; the electrostatic precipitator comprises an electrostatic dust removal section, the electrostatic dust removal section comprises two stages, the two stages are a first stage and a second stage in the air flow direction, and the electric field strengths of the first stage and the second stage are different; and the material of thehigh efficiency filter is one or more of PP filter paper, glass fiber paper and PET filter paper. The invention provides a fresh air system, the fresh air system is provided with the novel filteringmodule, and the effect of purifying air can be achieved.

The invention discloses a preparation method for a reinforced photocatalysis environment-friendly brick. The preparation method is mainly characterized in that a photocatalyst-contained surface layer is added on a bottom layer of the environment-friendly brick, and simultaneously, photocatalytic performance is reinforced through formula to enable the brick to have a strong degradation function on atmospheric pollutants. The photocatalysis environment-friendly product can be paved on places of sidewalks, gardens, squares, parking lots and schools or surfaces of other buildings and the like to achieve air purification.

The invention provides an environment-friendly council board, and belongs to the field of office appliances. The environment-friendly council board solves the problems that an existing council board cannot purify air more effectively. The environment-friendly council board comprises a support and a table top, wherein the support comprises a base and a support rod, an adjusting air cylinder is vertically arranged in an inner cavity of the table top, a cover plate is further arranged on the table top, a first slide strip and a second slide strip are arranged on the inner top surface of the table top, the first slide strip and the second slide strip are horizontally fixed to an accommodation plate, a slide air cylinder is horizontally fixed to the inner lateral wall of the table top, a long-strip through hole is formed in the accommodation plate, a plant wall is arranged on the accommodation plate, an iron wire net where plants can be clamped is detachably arranged on the plant wall, and a humidification mechanism capable of humidifying the plants is arranged in the inner cavity of the table top. The environment-friendly council board further has the advantages of being environment-friendly, purifying air and providing a relaxed office environment.

The invention discloses an antibacterial, wear-resistant and environment-friendly ceramic tile which comprises the following raw materials in parts by weight: 15-25 parts of sodium silicate solution, 4-8 parts of active carbon, 2-4 parts of nano zinc oxide, 1-3 parts of nano aluminium hydroxide, 7-9 parts of glass fiber, 5-9 parts of glass bead, 2-4 parts of bamboo carbon, 25-35 parts of modified clay, 8-14 parts of transparent aggregate, 10-14 parts of rare earth ion aqueous solution and 20-30 parts of ore powder. The ceramic tile has the advantages of high strength, low water absorption, good shock and crack resistance, acid and alkali resistance, ageing resistance and long service life, and also has higher sterilization and air purification performance; a preparation method of the antibacterial, wear-resistant and environment-friendly ceramic tile is lower in material cost, concise in technology and easy to operate, facilitates industrial production, and has a higher practical value and a good application prospect; and the raw materials are easy to obtain.

The invention discloses an exhaust gas absorbing device. An exhaust gas treatment device comprises a shell and a centrifugal fan, wherein two ends of the shell are open to form an air flue, absorbingliquid used for absorbing exhaust gas is contained in the air flue, the centrifugal fan is connected with the shell, and communicates with an air inlet, a liquid lifting part is arranged in the air flue, the liquid lifting part comprises a connection part and liquid containing parts which are connected with one another separately, and the connection part is rotatably connected with the shell, androtates relative to the shell when driven by air on one side of the air inlet, so that the liquid containing parts conduct reciprocating motion between the air flue and the absorbing liquid. Comparedwith the prior art, the exhaust gas treatment device has the advantages that through reaction of the absorbing liquid and harmful substances in the air, not only can an effect of purifying the air beachieved, but also power used for making the liquid lifting part throw the absorbing liquid into the air flue comes from the air which flows in the air inlet, therefore, a special power device is omitted, and the production cost and the running cost of the exhaust gas treatment device are saved.

The invention discloses a ventilation and purification device for an artificial stone production plant. The ventilation and purification device for the artificial stone production plant comprises a base, wherein a filter tank and two fixed frames are fixedly arranged on the top part of the base; a clapboard is fixedly connected between the top part and the bottom part of an inner wall of the filter tank; a water pump is fixedly connected to the position, located on the left side of the clapboard, of the bottom part of the inner wall of the filter tank; a water pumping pipe is fixedly connectedto a water inlet of the water pump; and a filter plate is fixedly arranged between the right side of the inner wall of the filter tank and the right side of the clapboard through an installation block. The ventilation and purification device for the artificial stone production plant relates to the technical field of air purification; and dust particles doped in air are sufficiently cleaned, and meanwhile, the water resource is recycled, so that the water source is saved, the device is environmental-friendly and convenient to maintain by working personnel, the air purification degree is improved through effective sterilization and disinfection, the air quality is improved, the air blowing range of air in the plant is enlarged, the air fluidity is improved, meanwhile, a ventilation effect of the plant is improved, and the air is purified thoroughly.

The invention provides a purification air exchanger capable of adjusting temperature. The purification air exchanger capable of adjusting the temperature comprises a purification air exchanging device and a temperature adjusting device; the purification air exchanging device comprises a shell, and a first stale air inlet, a stale air outlet, a fresh air inlet and a fresh air outlet are formed in the shell; an air filtration unit and a leading-in draught fan which are located between the fresh air inlet and the fresh air outlet are arranged in the shell; a leading-out draught fan is arranged between the first stale air inlet and the stale air outlet; the temperature adjusting device is located outside the fresh air outlet and used for adjusting the temperature of the air exhausted from the fresh air outlet. According to the purification air exchanger capable of adjusting the temperature, the indoor stale air can be led out, the outdoor fresh air can be led in, and the led-in air is free of pollutants, rich in oxygen and fresh in air; meanwhile, the temperature of the air led in a room can be adjusted, and a really comfortable living environment can be supplied to people.

The invention relates to the technical field of laboratory equipment and provides a laboratory air purification dedusting cover with an automatic cleaning function and a building method of the laboratory air purification dedusting cover. The laboratory air purification dedusting cover comprises a dedusting cover box body, an air blowing and dehumidifying unit, a dust-liquid collection unit and a water circulating cleaning unit and is fixed to the wall through a support device. Air flowing in the box body is accelerated through air blowers by means of the air blowing and dehumidifying unit, external air enters the box body through side nets and a filtering water curtain, PM2.5 or other particulate matter is dissolved and settled, the air enters a room through a dehumidifying assembly, the negative influence of too much water vapor on laboratory instruments is avoided, and interception and elution of contaminants are achieved; according to the dust-liquid collection unit and the water circulating cleaning unit, through a manner of providing a water flowing channel, a water body flows through the box body and the side nets, and the cleaning purpose is achieved; and a disinfectant is injected into the filtering water, and the function of degrading toxic substances in the air is achieved. By the adoption of the laboratory air purification dedusting cover with the automatic cleaning function and the building method, the method for removing the PM 2.5 or other particulate matter in the air can be provided, and the laboratory air purification dedusting cover and the method have the beneficial effects that the purification effect is good, and the secondary pollution is avoided.