A purification device and method

Abstract

The present application relates to air purification and air disinfection technical field, disclose a kind of purification device and method, device includes shell, wind power mechanism, filter mechanism and support mechanism, the shell is equipped with air inlet, the wind power mechanism includes cyclone fan, detection component and single board computer component, the cyclone fan is installed in the most front end of the air inlet, the detection component is configured to carry out quality detection to the air of air inlet, the single board computer component is electrically connected with the detection component and is linked with fan intelligent control. Contaminated air is sucked into shell by cyclone fan, part of bacteria, aerosol, organic matter, dust and the like in air are filtered out under the adsorption filtering effect of activated carbon component, bacteria attached to the surface of activated carbon component lose activity under the oxidation effect of iodine element, remaining small molecules, PM2.5 dust, viruses and ionic state and other pollutant in air are under the radiation of light source component and titanium ion catalytic reaction.

Description

Technical Field

[0001] This invention relates to the field of air purification and air disinfection technology, specifically to a purification device and method. Background Technology

[0002] Air pollution seriously endangers human health. Although air pollution mainly occurs outdoors, with improved living standards, many offices are equipped with air conditioning. This creates a closed-loop environment where people and the air conditioner create a breeding ground for pathogenic microorganisms such as bacteria, viruses, and mold. Higher population density increases the frequency of cross-infection. Therefore, indoor air purifiers are necessary. However, air purifiers using filtration principles have the drawback of secondary pollution. Ionization air purifiers with metal electrodes experience ionization corrosion under the influence of an ionizing field, releasing large amounts of metallic dust that can cause lung cancer. Therefore, the inventor developed the paper electrode air purifier. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a purification device and method that solves the technical problems of indoor air pollution harming human health and the generation of metal dust from traditional air metal electrodes leading to lung cancer.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a purification device comprising a housing, a wind mechanism, a filtration mechanism, and a support mechanism. The housing has an air inlet. The wind mechanism includes a cyclone fan, a detection component, and a single-board computer component. The cyclone fan is installed at the front end of the air inlet. The detection component is configured to detect the air quality at the air inlet. The single-board computer component is electrically connected to the detection component and is linked to the intelligent control of the fan. The filtration mechanism includes an activated carbon component, a light source component, a fiber paperboard electrode component, and a spray component. The activated carbon component is located at the front end of the cyclone fan. The light source component corresponds to the photocatalyst on the paperboard and is configured to cause a first predetermined component in the air to undergo a photocatalytic reaction. The fiber paperboard electrode component is configured to adsorb a second predetermined component. The spray component is located behind the fiber paperboard electrode component. The support mechanism includes a bracket assembly, which is fixedly connected to the fiber paperboard electrode assembly.

[0005] Preferably, the activated carbon component includes a filter screen, which includes iodized fiber activated carbon material. The specific steps are as follows: the fiber activated carbon is impregnated with a solution containing 22% iodine for 2 hours, and then dried under vacuum at 100 degrees Celsius for 4 hours.

[0006] Preferably, the light source component is an ultraviolet lamp light source.

[0007] Preferably, the fiber paperboard electrode assembly includes an iodine solution coating, a titanium dioxide photocatalytic material coating, a conductive graphite coating, and a flame-retardant fiber paperboard. The fiber paperboard electrode assembly is composed of multiple layers of paperboard stacked together. The preparation steps of each layer of paperboard are as follows: the paperboard is treated with a flame retardant, 5% titanium dioxide solution is coated on one side of the paperboard, and 22% iodine solution is coated on the other side of the paperboard. The coated paperboard is dried at 80 degrees Celsius for 30 minutes. Then, two graphene emulsions are coated on the surface of the paperboard, and the coating area of ​​the graphene emulsion accounts for 2%-5% of the total area of ​​the paperboard.

[0008] Preferably, the spray assembly includes an ultrasonic atomizing structure and an essential oil box, wherein the ultrasonic atomizing structure is disposed inside the essential oil box; The essential oil box contains plant essential oils with a mass fraction of 99.5%.

[0009] Preferably, one purification method involves drawing in the air to be purified using a cyclone fan; The intake air is filtered using an activated carbon assembly as a purification method. Under the catalytic action of the light source component and the cardboard titanium dioxide photocatalyst, the first set component in the filtered air undergoes a catalytic decomposition reaction; A second predetermined component in the air is adsorbed onto the electrode plate using a fiber paperboard electrode assembly; Under the airflow of the cyclone fan, negative oxygen ions are discharged from the purification device through the spray assembly.

[0010] Preferably, the processing of the fiberboard electrode assembly includes: The cardboard is sequentially coated with flame retardant, titanium dioxide, iodine solution, and conductive graphite powder, and then dried to complete the process.

[0011] Preferably, in the iodine solution coating step: Pure iodine and potassium iodide were mixed in a mass ratio of 1:0.71:0.71:0.7 and dissolved in pure water to prepare an iodine solution. The iodine solution was then coated onto the surface of the fiberboard, and the concentration of the iodine solution after coating was controlled to be 210-230 mg / L.

[0012] Preferably, the following automated control steps are also included: When the detection component detects that the air quality index exceeds the indoor air quality standard, the system automatically triggers an alarm and displays it. At the same time, the system adjusts the speed of the cyclone fan by linking the power supply of the single-board computer component.

[0013] Working Principle: Polluted air is drawn into the housing by a cyclone fan. The activated carbon component filters out some bacteria, aerosols, organic matter, and dust particles. Bacteria attached to the surface of the activated carbon component lose their activity under the oxidation of iodine. Remaining small molecules, PM2.5 dust, viruses, and ionized pollutants are partially degraded into smaller, harmless molecules under the radiation of the light source component and the catalytic reaction of titanium ions. Simultaneously, the ultraviolet light source of the light source component deactivates viruses and other microorganisms. The degraded small molecules, deactivated microorganisms, and air molecules form negatively charged ions under the ionization of the corona and ionization fields. Larger molecular weight harmful negative ions and deactivated viruses are adsorbed onto the fiber paperboard electrode component. The air containing negative oxygen ions flows out of the purifier through the spray component under the power of the cyclone fan, thus fully purifying the polluted air.

[0014] This invention provides a purification device and method. It has the following beneficial effects: 1. This invention utilizes a wind-powered mechanism, employing a cyclone fan to draw polluted air into the casing. The activated carbon assembly then filters out larger particulate matter, protecting the cyclone fan from damage caused by impacts from these larger particles. Large organic molecules in the air are degraded into harmless small molecules by the light source and the photocatalyst of the paper electrode, and are then adsorbed by the paper electrode. Bacteria, aerosols, and dust particles are ionized by the paper electrode and re-adsorbed. Because the paper electrode surface is coated with iodine, active bacteria lose their activity through oxidation, preventing secondary microbial contamination. Airborne aerosols diffuse to the substrate of the paper electrode due to its wettability, preventing the surface from being covered and losing its adsorption capacity. PM2.5 particles become charged under the ionization field and are adsorbed by the paper electrode. Harmful gases and other pollutants are also degraded through ionization and oxidation under the combined effects of photocatalysis and the ionization field. Viruses and microorganisms lose their activity under the influence of iodine and the ionization field on the paper electrode. The degraded small molecules and air molecules form negatively charged ions under the ionization effect of the ionization field, causing oxygen molecules to ionize into negative oxygen ions. The air containing negative oxygen ions flows out of the purifier with the anti-epidemic essential oil in the spray component under the power of the cyclone fan, thereby fully purifying the polluted air and releasing negatively charged oxygen ions at the same time.

[0015] 2. This invention, by setting up a purification mechanism, removes pollutants such as chemical pollutants, dust pollutants, smoke pollutants, aerosols, and bacterial pollutants from the air through the adsorption function of the aforementioned fiber paperboard electrode assembly. At the same time, it can release negative oxygen ions that are beneficial to the human body. The air flowing out through the spray assembly contains concentrated essential oils with anti-epidemic effects, so that the purification device can not only purify indoor air pollution, but also disinfect bacteria and fight viruses, effectively preventing the spread of viruses.

[0016] 3. This invention, through the setting of an electrode adsorption mechanism, creates a high-intensity ion ionization field by arranging the electrodes in parallel. Compared to metal electrodes, paper electrodes offer the following advantages: They conserve non-ferrous metal resources, prevent metal dust caused by ionization corrosion of metal electrodes, thus avoiding the potential for lung cancer; the wettability of paper electrodes allows for the adsorption of large amounts of aerosols, and their resistance to aerosol contamination is hundreds of times greater than that of metal electrodes; they save costs, with paper electrodes costing only 1 / 20th the price of metal electrodes of the same area; after adsorption saturation, paper electrodes can be discarded and degraded into harmless substances in the natural environment, without heavy metal pollution. Most importantly, paper electrodes generate a good capacitance effect, a strong electric field, and a strong adsorption capacity, which is conducive to the harmless ionization reaction of harmful substances and the conversion of oxygen into negative oxygen ions. Therefore, paper electrode plates have advantages such as low energy consumption, high electric field strength, large area, strong anti-pollution ability, high efficiency in converting negative oxygen ions, and good purification effect. Attached Figure Description

[0017] Figure 1 This is a partial structural diagram of the air inlet of a purification device proposed in this invention; Figure 2 This is a three-dimensional structural diagram of the housing of a purification device proposed in this invention; Figure 3 This is a three-dimensional structural diagram of the internal structure of the purification device proposed in this invention; Figure 4 This is a partial structural diagram of the support mechanism of a purification device proposed in this invention; Figure 5 This is a partial structural diagram of the spray assembly of a purification device proposed in this invention; Figure 6 This is a partial structural diagram of a fiber paperboard electrode assembly for a purification device proposed in this invention; Figure 7 This is a schematic diagram of the coating structure of a fiber paperboard electrode assembly in a purification device proposed in this invention; Figure 8 This is a partial structural diagram of the iodine solution coating surface of a purification device proposed in this invention.

[0018] Among them, 100 is the shell; 101 is the air inlet; 200 is the wind power mechanism; 201 is the cyclone fan; 202 is the detection component; 203 is the single-board computer component; 300 is the filter mechanism; 301 is the activated carbon component; 302 is the light source component; 303 is the fiber paperboard electrode component; 304 is the spray component; 400 is the support mechanism; 401 is the bracket component; 500 is the iodine solution coating; 501 is the titanium dioxide photocatalytic material coating; 502 is the conductive graphite coating; and 503 is the flame-retardant fiber paperboard. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see the appendix Figure 1 -Appendix Figure 8 This invention provides a purification device, including a housing 100, a fan mechanism 200, a filter mechanism 300, and a support mechanism 400. The housing 100 has an air inlet 101. The fan mechanism 200 includes a cyclone fan 201, a detection component 202, and a single-board computer component 203. The cyclone fan 201 is installed at the foremost end of the air inlet 101. The detection component 202 is configured to detect the air quality at the air inlet 101. The single-board computer component 203 is electrically connected to the detection component 202. The filter mechanism 300 is connected to and linked with the intelligent control of the fan. It includes an activated carbon component 301, a light source component 302, a fiber paperboard electrode component 303, and a spray component 304. The activated carbon component 301 is located at the front end of the cyclone fan 201. The light source component 302 corresponds to the photocatalyst on the paperboard and is configured to cause a first set component in the air to undergo a photocatalytic reaction. The fiber paperboard electrode component 303 is configured to adsorb a second set component. The spray component 304 is located behind the fiber paperboard electrode component 303. The support mechanism 400 includes a bracket assembly 401, which is fixedly connected to the fiber paperboard electrode assembly 303.

[0021] Specifically, the cyclone fan 201 is a conventional low-noise drum-type cyclone fan 201. The single-board component 203 is configured to automatically activate the purification device and adjust the variable frequency fan speed. The support component 401 supports the fiber paperboard electrode component 303 on one hand and supplies power to the fiber paperboard electrode component 303 on the other. The material of the support component 401 can be conductive rubber. The first set component is the small molecules, PM2.5 dust, viruses, and ionized pollutants remaining in the air after being adsorbed and filtered by the activated carbon component 301. The second set component is the light source component 302 that emits the first set component. Under catalysis, the degraded small molecules, inactive microorganisms, and air molecules form negatively charged ions under the ionization of the corona field and ionization field, as well as inactive viruses. The light source component 302 is located adjacent to the titanium dioxide coated electrodes of the activated carbon component 301 and the fiber paperboard electrode component 303. One end of the support component 401 is on both sides of the fiber paperboard electrode component 303, and the support component 401 is connected to the conductive graphite coating of the fiber paperboard electrode component 303. The other end of the support component is connected to a conventional single-phase high-voltage power supply.

[0022] The activated carbon component 301 includes a filter screen, which includes iodized fiber activated carbon material. The specific steps are as follows: the fiber activated carbon is impregnated with a solution containing 22% iodine for 2 hours and then dried under vacuum at 100 degrees Celsius for 4 hours.

[0023] Specifically, the activated carbon component 301 includes a filter screen, which includes iodized activated carbon fiber material. After being treated with an iodine coating process, the iodized activated carbon fiber has the function of filtering coarse fibers and larger dust particles, while preventing bacteria and viruses from being adsorbed and multiplying.

[0024] The light source assembly 302 is an ultraviolet lamp light source.

[0025] Specifically, the light source component 302 includes an ultraviolet lamp light source, which has a dual function: on the one hand, it can kill bacteria and viruses in the air, and on the other hand, it provides a light source for the catalytic reaction. In specific settings, the ultraviolet lamp light source is made of hard glass.

[0026] The fiber paperboard electrode assembly 303 includes an iodine-coated surface 500, a titanium dioxide photocatalytic material coating surface 501, a conductive graphite coating surface 502, and a flame-retardant fiber paperboard 503. The fiber paperboard electrode assembly 303 is composed of multiple layers of paperboard. The preparation steps of each layer of paperboard are as follows: the paperboard is treated with a flame retardant, 5% titanium dioxide solution is coated on one side of the paperboard, and 22% iodine solution is coated on the other side of the paperboard. The coated paperboard is dried at 80 degrees Celsius for 30 minutes. Then, two graphene emulsions are coated on the surface of the paperboard. The coating area of ​​the graphene emulsion accounts for 2%-5% of the total area of ​​the paperboard.

[0027] Specifically, the fiber paperboard electrode assembly 303 is provided with multiple layers of stacked paperboard.

[0028] The spray assembly 304 includes an ultrasonic atomizing structure and an essential oil box, wherein the ultrasonic atomizing structure is disposed inside the essential oil box. The essential oil box contains plant essential oils with a mass fraction of 99.5%.

[0029] Specifically, the spray assembly 304 includes an ultrasonic atomizing structure and an essential oil box. The essential oil box includes a first part and a second part. The first part and the second part of the essential oil box are respectively provided with ultrasonic atomizing structures. Ginger essential oil is placed in the first part of the essential oil box, and licorice essential oil is placed in the second part of the essential oil box.

[0030] The aforementioned structural assembly forms an air purifier applicable to indoor air purification. This structure removes chemical pollutants, PM2.5 particles, bacteria, viruses, mold, and other pathogenic microorganisms from the air, as well as air pollution from smoking. Furthermore, it dynamically monitors indoor air quality and increases the concentration of negative oxygen ions. This structure significantly improves indoor air quality, inhibits the spread of viruses and bacteria, and is particularly effective in resisting the spread of the novel coronavirus.

[0031] A purification method involves drawing in air to be purified via a cyclone fan 201; The intake air is filtered using activated carbon component 301; Under the catalytic action of the light source component 302 and the cardboard titanium dioxide photocatalyst, the first set component in the filtered air undergoes a catalytic decomposition reaction; The second predetermined component in the air is adsorbed onto the electrode plate using the fiber paperboard electrode assembly 303; Under the airflow action of the cyclone fan 201, negative oxygen ions are discharged from the purification device through the spray assembly 304.

[0032] Specifically, the activated carbon component 301 filters out some bacteria, aerosols, organic matter, and dust in the air through adsorption and filtration. Furthermore, bacteria attached to the surface of the activated carbon component 301 lose their activity and cease reproduction under the oxidation effect of iodine. The first set component in the air filtered by the activated carbon component 301 undergoes a catalytic reaction under the radiation and titanium ion catalysis of the light source component 302, degrading into smaller, harmless molecules. Simultaneously, the ultraviolet light source in the light source component 302 inactivates viruses and other microorganisms through its sterilization and disinfection effect. Traditional air purification equipment mainly consists of media filtration and metal electrode ionization adsorption purification. Media filtration primarily uses activated carbon, cotton, and cloth filter media. These media can purify the air initially, but after a period of use, bacteria multiply on the filter material, producing harmful gases with odors and causing secondary pollution of indoor air. Metal electrode adsorption technology uses metal as the electrode material. However, because pollutant aerosols easily cover the surface of the metal electrode, causing saturation contamination, the saturated metal electrode is extremely difficult to clean and is usually discarded directly, resulting in a large waste of metal resources and metal environmental pollution. Furthermore, metal electrodes will undergo electro-corrosion in a high-voltage electrostatic field, which increases the concentration of metal ion dust in the air. Therefore, using metal electrode adsorption for purification can easily generate heavy metal ion dust, and the adsorption capacity of metal electrodes is low and the cost is high.

[0033] The processing of the fiberboard electrode assembly 303 includes: The cardboard is sequentially coated with flame retardant, titanium dioxide, iodine solution, and conductive graphite powder, and then dried to complete the process.

[0034] In the process of applying iodine solution: Pure iodine and potassium iodide were mixed in a mass ratio of 1:0.71:0.71:0.7 and dissolved in pure water to prepare an iodine solution. The iodine solution was then coated onto the surface of the fiberboard, and the concentration of the iodine solution after coating was controlled to be 210-230 mg / L.

[0035] Specifically, the fiber paperboard electrode assembly 303 is manufactured by sequentially coating with flame retardant, titanium dioxide, iodine, and conductive carbon powder, followed by vacuum drying. This allows the fiber paperboard to adsorb electrodes. Materials used for the fiber paperboard adsorption electrodes include straw pulp fiber paperboard, wood pulp fiber paperboard, recycled pulp fiber paperboard, and non-woven fiberboard. The flame retardant coating covers 100% of the area of ​​the fiber paperboard electrode assembly 303, the titanium dioxide coating covers 100% of the area, the iodine coating covers 40% of the area, and the conductive carbon powder coating covers 5% of the area. Because the fiber paperboard electrode assembly 303 has wetting properties, it has a large adsorption capacity, resists aerosol coverage, and can naturally degrade after disposal without causing environmental pollution. In the 303 iodine coating process, pure iodine and potassium iodide are mixed in pure water at a mass ratio of 1:0.7 to form an iodine solution. Activated carbon fibers are immersed in the iodine solution for 30 minutes. The concentration of the iodine solution is 57-59 mg / L. This disclosure preferably uses an iodine solution concentration of 57 mg / L. The iodine solution is then coated onto the surface of the fiber paperboard. The concentration of the coated iodine solution is 160-170 mg / L. This disclosure preferably uses a coated iodine solution concentration of 170 mg / L. This concentration of iodine solution has a significant oxidizing and bactericidal function. Bacteria immediately lose their activity and reproductive ability under the oxidizing effect of iodine, preventing bacteria from growing and multiplying on the adsorbent material, thereby avoiding odors and secondary air pollution caused by bacterial growth and reproduction. The essential oil box contains extracts of ginger and licorice. Due to the anti-epidemic effects of ginger and licorice plant essential oils, they can kill or inhibit the spread of the novel coronavirus.

[0036] It also includes the following automated control steps: When the detection component 202 detects that the air quality index exceeds the indoor air quality standard, the system automatically triggers an alarm and displays it. At the same time, the single-board computer component 203 drives the power supply to adjust the speed of the cyclone fan 201.

[0037] Specifically, when the air quality exceeds the indoor air quality standard, the detection component 202 will automatically sound an alarm. The indoor air quality standard can be set to GB / T18883-2002. The air is thoroughly purified through the above methods, employing adsorption by activated carbon component 301, ultraviolet photocatalytic degradation by titanium dioxide, corona discharge ionization, adsorption by fiber paperboard electrode component 303, and filtration by spray component 304. It should be noted that extracts of ginger and licorice are selected, which are highly concentrated essential oils. In existing technologies, ginger and licorice are effective medicinal materials for inhibiting and preventing the novel coronavirus, inhibiting its replication and reproduction, thus playing a role in combating the virus. The spray component 304 maintains an effective antibacterial concentration in the purification device, thereby achieving an anti-epidemic effect while purifying the air.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A purification device, comprising a housing (100), a wind power mechanism (200), a filter mechanism (300), and a support mechanism (400), characterized in that, The housing (100) has an air inlet (101). The wind power mechanism (200) includes a cyclone fan (201), a detection component (202), and a single-board computer component (203). The cyclone fan (201) is installed at the front end of the air inlet (101). The detection component (202) is configured to detect the air quality at the air inlet (101). The single-board computer component (203) is electrically connected to the detection component (202) and linked with the intelligent control of the fan. The filtration mechanism (300) includes... The assembly includes an activated carbon component (301), a light source component (302), a fiber paperboard electrode component (303), and a spray component (304). The activated carbon component (301) is located at the front end of the cyclone fan (201). The light source component (302) corresponds to the photocatalyst on the paperboard and is configured to cause a first predetermined component in the air to undergo a photocatalytic reaction. The fiber paperboard electrode component (303) is configured to adsorb a second predetermined component. The spray component (304) is located at the rear side of the fiber paperboard electrode component (303). The support mechanism (400) includes a bracket assembly (401) which is fixedly connected to the fiber paperboard electrode assembly (303).

2. The purification device according to claim 1, characterized in that, The activated carbon component (301) includes a filter screen, which includes iodized fiber activated carbon material. The specific steps are as follows: the fiber activated carbon is impregnated with a solution containing 22% iodine for 2 hours and then dried under vacuum at 100 degrees Celsius for 4 hours.

3. The purification device according to claim 1, characterized in that, The light source component (302) is an ultraviolet lamp light source.

4. The purification device according to claim 1, characterized in that, The fiber paperboard electrode assembly (303) includes an iodine solution coating (500), a titanium dioxide photocatalytic material coating (501), a conductive graphite coating (502), and a flame-retardant fiber paperboard (503). The fiber paperboard electrode assembly (303) is composed of multiple layers of paperboard. The preparation steps of each layer of paperboard are as follows: the paperboard is treated with a flame retardant, 5% titanium dioxide solution is coated on one side of the paperboard, and 22% iodine solution is coated on the other side of the paperboard. The coated paperboard is dried at 80 degrees Celsius for 30 minutes. Then, two graphene emulsions are coated on the surface of the paperboard. The coating area of ​​the graphene emulsion accounts for 2%-5% of the total area of ​​the paperboard.

5. The purification device according to claim 1, characterized in that, The spray assembly (304) includes an ultrasonic atomizing structure and an essential oil box, wherein the ultrasonic atomizing structure is disposed inside the essential oil box; The essential oil box contains plant essential oils with a mass fraction of 99.5%.

6. A purification method applicable to the purification apparatus according to any one of claims 1-5, characterized in that, The air to be purified is drawn in by the cyclone fan (201); The intake air is filtered using an activated carbon assembly (301); Under the catalytic action of the light source assembly (302) and the cardboard titanium dioxide photocatalyst, the first set component in the filtered air undergoes a catalytic decomposition reaction; The second predetermined component in the air is adsorbed onto the electrode plate using the fiber paperboard electrode assembly (303); Under the airflow action of the cyclone fan (201), negative oxygen ions are discharged from the purification device through the spray assembly (304).

7. The purification method according to claim 6, characterized in that, The processing of the fiberboard electrode assembly (303) includes: The cardboard is sequentially coated with flame retardant, titanium dioxide, iodine solution, and conductive graphite powder, and then dried to complete the process.

8. The purification method according to claim 7, characterized in that, In the process of applying iodine solution: Pure iodine and potassium iodide were mixed in a mass ratio of 1:0.71:0.71:0.7 and dissolved in pure water to prepare an iodine solution. The iodine solution was then coated onto the surface of the fiberboard, and the concentration of the iodine solution after coating was controlled to be 210-230 mg / L.

9. A purification method according to claim 6, characterized in that, It also includes the following automated control steps: When the detection component (202) detects that the air quality index exceeds the indoor air quality standard, the system automatically triggers an alarm and displays it. At the same time, the single-board computer component (203) drives the power supply to adjust the speed of the cyclone fan (201).

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