KR20210110115A - Air cleaning apparatus - Google Patents

Abstract

Disclosed is a complex air purifier capable of removing fine dust-causing substances, formaldehyde, bacteria, and mold, which cannot be removed with ordinary filters. According to the present invention, the air purifier comprises: a housing in which a solution is accommodated; a wet scrubber aggregating fine dust particles floating in the air into a mist; a fine particle separator installed in the housing, diffusely separating the fine dust particles in the mist, and diluting the separated fine dust particles in the solution; a first filter unit installed on a flow path of the air passing through the housing and filtering fine dust diluted in the solution or contained in the air; a flexible plasma electrode having a fabric structure discharged in the atmosphere without external gas supply; and a molecular recognition polymer filter filtering ultrafine dust contained in the air passing through the first filter unit.

Description

Air cleaning device {AIR CLEANING APPARATUS}

The present invention relates to an air purifier, and more particularly, to a complex type air purifier capable of removing fine dust-causing substances, formaldehyde, bacteria and mold that cannot be removed with a general filter.

In the case of Korea, high-performance outdoor air cleaning equipment is installed in accordance with the rules on facility standards for buildings (Building Equipment Standards Article 11, Paragraph 4, School Health Act Enforcement Rule Article 3 Paragraph 1, Indoor Air Quality Management Act Enforcement Rule Article 4) Ventilation equipment capable of ventilating equivalent to 0.5 times shall be provided.

Also, looking at overseas work regulations, according to the ventilation system standards for apartment houses and multi-use facilities, the number of ventilation in offices is 6-12 times/h, hospitals 6-15 times/h, restaurants 6 times/h, and classrooms. requires ventilation of 6 times/h, etc.

Looking at the conventional air purifier, there are largely a HEPA filter-based air purifier, a wet air purifier using micro carbon fiber, a combination dust collector, a fine dust reduction construction technology using a photocatalyst, and a filter-free air purifier. The pros and cons of each of these are as follows.

1. HEPA filter based air purifier

1 is a schematic diagram showing a typical HEPA filter manufacturing process. Referring to FIG. 1 , the currently used fine dust HEPA filter is a filtering method based on micrometer-sized fibers and is widely used because of its good fine dust collection efficiency. However, due to the high pressure loss, the power consumption of the blower required to purify the air is large, and noise and vibration are generated.

2. Wet air purification device using micro carbon fiber

This technology is a technology that can remove ultrafine dust (PM2.5) only with water and static electricity without a filter. That is, after charging fine dust using a micro carbon fiber discharge electrode, it is collected by a dust collecting panel in which a high-strength electric field is formed. By applying a relatively low voltage to the ultra-fine micro carbon fiber bundle, it can charge fine particles without ozone generation, and combines the function of collecting charged particles with a metal dust collecting panel or a dielectric coated dust collecting panel. Charged fine dust particles are removed by moving the water film together with the water film to the water tank at the bottom by the water film-type dust collecting pole designed to allow water to flow down. That is, the electrostatic precipitator can always be kept clean to prevent secondary contamination, air purification and humidification are possible at the same time, and there is no need for a filter, so it can be used semi-permanently.

3. Combination type dust collector

2 is a view showing the performance evaluation results of the 200CMH class Pecked Filter System combined dust collector and the combined dust collector.

In order to reduce the emission concentration of particulate ultrafine dust, a technology that can remove more than 90% of ultrafine dust by combining a double-walled low pressure loss cyclone with a filter regeneration system is being developed. Referring to FIG. 2 , after 70% or more of the dust flowing in from the low-pressure loss cyclone, which is the primary dust collecting unit, is removed, the remaining dust flows into the secondary dust collecting unit, the bag filter dust collector, to reduce the load of the filtration filter. Cyclone has a limitation in that it consumes a lot of energy and is vulnerable to abrasive dust due to a large pressure loss during operation, but the technology can reduce pressure loss by more than 70% to improve energy efficiency and reduce mechanical wear. In addition, since dust enters the secondary dust collecting unit, the bag filter dust collector, the load on the filtration filter can be reduced, and the filter life is expected to increase as the filter regeneration process cycle becomes longer. In addition, it is expected that the removal efficiency of nitrogen oxides and sulfur oxides, which are gaseous ultrafine dust-causing substances, can be improved by using the high-temperature gas recirculation method and the reducing agent pyrolysis method. Because it can complexly treat ultrafine dust and its precursors, the technology can be applied to waste energy resources, thermal power plants, and road construction sites in the future.

4. Fine dust reduction construction technology using photocatalyst

3 is a schematic view for explaining a photocatalytic concrete fine dust removal principle. Referring to FIG. 3 , photocatalyst-based construction materials and application technologies for road facilities that can remove fine dust precursors (NOx, SOx) in the atmosphere (photocatalyst coating materials, visible light reactive photocatalyst construction materials, photocatalyst fabrics and tiles) , photocatalyst multifunctional building materials such as insulation and sound absorption, photocatalyst air purification filters and air conditioning equipment) development and commercialization are being promoted. Specifically, it aims to develop a low-cost, high-performance photocatalyst production technology that satisfies a photocatalyst material powder of 10㎛ or less, a nitrogen oxide removal rate of 50%, and is 50% cheaper than existing products.

The low-cost, high-performance photocatalyst can be used in the road pavement field, median partitions classified as road ancillary facilities, soundproof walls and road sound-absorbing materials, pedestrian sidewalk blocks, as well as air conditioning facilities for ventilation of tunnels and underground spaces.

5. Filter-free air purifier

4A is a view for explaining the principle of condensed growth of ultrafine dust using water and the removal of inertial collision of coarse particles, and FIG. 4B is a schematic view showing a charging type filterless ultrafine dust air purifier.

Referring to FIG. 4A , the condensation growth type filter-free ultra air purifier uses the principle of removing coarse particles through high-speed condensation growth of ultrafine dust using water. It grows ultra-fine particles of 100 μm or less to 2 μm or more through two types of water-cooled plate heat exchanger condensers and adiabatic expansion condensers, and removes ultra-fine dust with an efficiency of over 90% compared to the initial concentration through a coarse particle removal device and moisture evaporator. It is characterized by being able to However, water for droplet evaporation is additionally consumed in the saturation part, and the multi-nozzle used to obtain a cooling effect by adiabatic expansion increases the fan load, and thus the range of application is limited.

Referring to FIG. 4B , as an improvement plan of the device according to FIG. 4A , a method of maximizing the amount of ions generated through an optimized design of a charger and improving the charging efficiency of ultrafine particles is introduced. Through this, a charge-free filter-free ultra-air purifier that can reduce pressure loss, solve noise problems, and reduce the installation volume by omitting the saturation part is being developed.

An object of the present invention is to provide a complex type air purifier capable of removing fine dust-causing substances, formaldehyde, bacteria and mold that cannot be removed with a general filter.

Another object of the present invention is to provide an air cleaning device for a street light pole that is detachable to a street light pole to which the above-described complex type air cleaning device is applied.

In order to achieve the above object, the present invention provides an air purifier comprising: a housing in which a solution is accommodated; a wet scrubber that aggregates fine dust particles suspended in the air in a mist form; a fine particle separator installed in the housing to diffusely separate fine dust particles in the mist and dilute the separated fine dust particles in the solution; a first filter unit installed on a flow path of air passing through the fine particle separator and filtering fine dust diluted in the solution or contained in the air; Plasma flexible electrode having a fabric structure that is discharged in the atmosphere without external gas supply; It may include a molecular recognition polymer filter for filtering ultrafine dust contained in the air that has passed through the first filter unit.

The wet scrubber includes: a water tank containing a spray solution therein; a mist generator for generating mist from the spray solution; a spraying unit for spraying the mist generated by the mist generator onto the contaminated air; It is accommodated in the water tank and may include a plurality of sterilization balls coated with silver iodide.

The molecular recognition polymer filter, a nonwoven fabric; It is formed on the nonwoven fabric and includes a molecular recognition polymer functional polymer that filters ultrafine dust, and the molecular recognition polymer functional polymer is perforated in a nano-sized porosity by ultraviolet light.

By applying a hybrid filter that removes fine dust and ultra-fine dust, the air purifier according to the present invention can remove substances that cause fine dust, formaldehyde, bacteria and mold that cannot be removed with a general filter.

In addition, the air purifier for a street light pole detachable to the street lamp pole according to the present invention is applicable to all street light poles installed in the city center and general roads. In particular, it can be installed in an area with severe fine dust or in an urban area where a lot of fine dust is generated. Furthermore, since it is possible to attach and detach the lamp post, it can be moved and installed according to the time of occurrence of fine dust and the needs of the region. In addition, by installing an air purifier using a streetlight pole, there is an advantage in that it is easy to secure an installation space in the city center and maintenance is convenient.

1 is a schematic diagram showing a typical HEPA filter manufacturing process.
Figure 2 is a view showing the performance evaluation results of the 200CMH class Pecked Filter System combination type dust collector and the combination type dust collector.
3 is a schematic view for explaining a photocatalytic concrete fine dust removal principle.
FIG. 4A is a view for explaining the principle of condensed growth of ultrafine dust using water and the removal of inertial collision of coarse particles, and FIG. 4B is a schematic view showing a charging type filterless ultrafine dust air purifier.
5a and 5b are each a schematic view showing an air purifier according to an embodiment of the present invention.
6A to 6C are views for explaining a filtering function according to each size of dust particles.
7 is a graph showing the correlation between fine dust particle size and collection efficiency.
8A and 8B are each a schematic perspective view showing a nebulizer and a microfluidic system for generating air and droplets, respectively.
9 is a perspective view showing the wrinkle media filled in the filter.
Figure 10 is a schematic view showing a sterilization ball manufacturing process of the air cleaning device according to an embodiment of the present invention.
Figure 11a is a schematic view showing a nano-filter of the air cleaning device according to an embodiment of the present invention, Figure 11b is an enlarged view of Figure 11a.
12a and 12b are each a schematic view showing a flexible electrode of the air purifier according to an embodiment of the present invention.
13 is a partial cross-sectional perspective view showing a molecular recognition polymer filter.
14 is a schematic view showing a manufacturing process of the molecular recognition polymer filter of FIG. 13;
15 to 18 are schematic views showing a street lamp type air purifier according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and the same reference numerals are used for the same or similar components throughout the specification.

5a and 5b are each a schematic view showing an air purifier according to an embodiment of the present invention. 5A and 5B, the air purifier according to an embodiment of the present invention includes a hybrid filter that efficiently removes fine dust and ultra-fine dust, and may be installed in an indoor space such as a residential space or an office space. can Here, outdoor air (OA) is supplied to the room in the form of purified supply air (SA) while passing through a hybrid filter (eg, HEPA filter) of the air purifier, that is, supplied to the room. In addition, the indoor air (RA) is discharged to the outside after passing through the air purifier, that is, exhausted (EA). Hereinafter, the hybrid filter will be described in detail.

1. Hybrid filter for collecting fine dust and ultra-fine dust

In this embodiment, the hybrid filter technology for collecting fine dust in the air utilizes a method of coarsening dust particles using droplets to cause gravitational sedimentation, and a collection mechanism by the inertial effect, diffusion effect, and blocking effect of the fine particles. do.

Here, the inertial effect of fine dust particles is that the particles approaching the fibers riding on the air flow escape from the airflow due to their inertia and collide with the filter fibers and are collected. As particles approach an obstacle at the same speed as air, the air accelerates and deflects to pass around the filter fiber.

6A to 6C are diagrams for explaining a filtering function according to each size of dust particles.

Referring to FIG. 6A , particles with a large mass (eg, particles exceeding 1 μm) tend to keep moving in a straight line due to inertia, but air tries to guide the particles to the side. The inertial effect is proportional to the particle size of the dust and the air velocity.

Referring to FIG. 6B , fine dust particles (eg, particles in the range of 0.1 μm to 1 μm) diffuse while performing Brownian motion regardless of air flow. Therefore, even large particles that pass through the media in the air stream are caught by the fibers because the distance passing between the media is long and there is no directionality. The particle trapping effect by diffusion is inversely proportional to the particle size of the dust and the flow rate.

Referring to FIG. 6C , the blocking effect of ultrafine dust particles (eg, particles of less than 100 nm) is diffused when the center of the dust particles passes within the particle radius from the fiber surface when a certain particle passes close to the filter fiber , inertial, gravitational or electrically trapped in the fiber. The effect of such direct trapping is large when the ratio of particle diameter to fiber diameter is large.

7 is a graph showing the correlation between the particle size of fine dust and the collection efficiency. Referring to FIG. 7 , in the fine dust particle collection technology, dust larger than 0.4 μm is filtered through the inertial effect and blocking effect, and dust smaller than 0.1 μm is mainly filtered through the diffusion effect. Therefore, particles around 0.3㎛ are difficult to filter because all of these principles are weakly applied. The particle size around 0.3㎛ to which all the filter principles are weakly applied is called MPPS (Most Penetrating Particle Size), and the standard of the trapping effect is set to 0.3㎛ particles.

(1) Overview of gravity sedimentation function of hybrid filter

8A and 8B are each a schematic perspective view showing an atomizer and a microfluidic system for generating air and droplets, respectively. Referring to the drawings, the atomizer mixes and sprays air and droplets containing fine dust, and the sprayed material passes through a microfluidics. At this time, the microfluidic system coarsens the particles of ultrafine dust evenly.

9 is a perspective view showing the wrinkle media filled in the filter. In order to collect fine dust through gravitational sedimentation of the coarse dust particles, the coarse particles pass through a filter filled with a wrinkle media 47 as shown in FIG. 9 . Here, the wrinkle media 47 is made of a PVC material, and is processed into a structure that maximizes the specific surface area in a unit volume space. Through the thickness of the filter filled with the wrinkle media and the air velocity, the length of the air flow is adjusted to increase the collection efficiency.

On the other hand, in order to improve the water quality of water used for coarsening the particles, a water quality improvement sterilization ball (23 in FIG. 10) designed as follows is used. This sterilization ball has sterilization properties of over 99.9% even at ultra-trace concentrations, and the Ag ⁺ concentration is less than 1/5 of the drinking water quality standards. It should not be resistant to bacteria.

10 is a schematic view showing a manufacturing process of a sterilization ball. Referring to FIG. 10 , an alumina ball 23a is prepared, and a silver (Ag) coating film 23b is formed to a predetermined thickness on the surface of the alumina ball 23a through electroless silver plating. Subsequently, a silver iodide (AgI) coating film 23c is formed through an iodination reaction with respect to the silver coating film 23b.

By putting a plurality of sterilization balls 23 in the water tank, the iodine (I) component and the silver (Ag) component can exist as ions in the water. At this time, the silver (Ag) component dissolved in the water has a sterilizing action against various microorganisms.

(2) Overview of Inertia, Diffusion, and Blocking Effects of Hybrid Filters

Reactive ion etching process technology is applied to the electrospun polymer nanofiber material to significantly reduce the thickness of the fiber to reduce pressure loss, and chemical surface treatment through injected oxygen gas has the same level of dust collection efficiency as commercial HEPA filters A nanofiber-based fine dust collecting filter is applied.

11A is a schematic view showing a nanofilter of an air purifier according to an embodiment of the present invention, and FIG. 11B is an enlarged view of FIG. 11A.

11A and 11B , the nanofilter 41 may include a mesh-shaped base 41a and a nanofiber layer 41b formed on the base 41a. The nanofiber layer 41b adsorbs fine dust diluted in the solution. In addition, the nanofilter 41 may further include a coating layer 41c formed on the nanofiber layer 41b. A plurality of openings arranged in a two-dimensional matrix direction are formed in the coating layer 41c, and the nanofiber layer 41b is exposed to the outside through the openings. Therefore, the nano-filter 41 can suppress the separation of the nano-fiber layer 41b when used for a long time while maintaining the dust adsorption performance through the nano-fiber layer 41b. The nanofilter 41 configured as described above has a structure that can be washed with water, and has the advantage that it can be easily cleaned when contaminated.

2. Fine dust causative material control technology

Fine dust is particulate matter that floats or is blown down in the atmosphere, and refers to dust generated during the combustion process of fossil fuels or the process of emissions from factories and automobiles. Here, the sources are divided into natural (soil dust, pollen, etc.) and artificial ones (industrial sites, power generation facilities, automobile exhaust gas, construction sites, etc.). In addition, fine dust can be divided into a primary product that is directly emitted in a solid state and a secondary product that is indirectly emitted by a reaction in the atmosphere. Here, secondary products account for about 70% of the total fine dust. In addition, secondary products are indirectly generated by chemical reaction of business-site SOx and automobile emission NOx with water vapor and ammonia in the atmosphere. In addition, various organic solvents and volatile organic compounds (VOCs) emitted from petroleum refining and petrochemical manufacturing facilities make ultra-fine dust. Therefore, it is necessary to collect fine dust causative substances.

(1) NOx, SOx, virus removal by low-temperature atmospheric pressure plasma

To this end, the present invention removes NOx, SOx, and viruses by low-temperature atmospheric pressure plasma.

When both electrodes are spaced apart and AC power of hundreds of volts to tens of kilovolts is applied between the two electrodes, atmospheric pressure plasma is generated through a plasma discharge phenomenon. At this time, electrons or various functional ions in the plasma meet in the discharge region with air or water, etc. to be ionized and decomposed to form active radicals with excellent oxidizing power. possible.

Atmospheric pressure plasma discharged in space (1 atm) has been studied a lot since the 1990s, and depending on the discharge structure and discharge mode, Dielectric Barrier Discharge (DBD), Corona Jet (Corona Jet), Glow Discharge (Glow Discharge) ), Arc Torch, Micro Hollow Cathode Discharge (MHCD), and Inductively Coupled Plasma (ICP). For atmospheric pressure plasma, more than 90% of research on small DBD or corona jet type plasma using helium or argon gas, which has relatively low discharge voltage, consumes gas such as helium or argon supplied for discharge, so additional supply gas facilities are needed. Simplification of the system is required.

Most of the research on air atmospheric pressure plasma using air instead of gas for discharge has a DBD structure or a torch type electrode structure, but the electrode spacing is small or the plasma treatment cross-sectional area is small. is required

In addition, when using only a single plasma jet, it is difficult to maintain a high concentration of reactive radicals generated by continuous direct contact with the contaminated surface or by continuously generating a very large amount due to the flow of the atmosphere, the temperature of the atmosphere, and the diffusion effect. There is a limit to rapidly removing components with a high efficiency of 99.9% or more.

In order to overcome this limitation of the treatment area, research is being conducted to treat a flat large area surface by combining a plasma torch array and roll revolution.

However, most of the electrodes for generating plasma mentioned above are designing the overall plasma system using the shape of a non-flexible electrode. Therefore, when designing electrodes for various applications, there are limitations in the volume and design of the entire system due to the non-flexible electrode. exists

In order to solve this problem, the present invention can be composed of a large area or various types of plasma fabrics using flexible electrodes that are discharged in the air without a wire-type external gas supply as shown in FIG. 12a. .

This wire-type flexible electrode (refer to FIG. 12B) is configured as follows.

The linear flexible plasma generator has a shape similar to a coaxial cable, wraps the center electrode with a flexible dielectric, and adjusts the braid ratio of the grounded outer electrode to wrap around the dielectric as if the outer electrode surrounds the center electrode with the dielectric in between. It has a satellite form. Plasma is discharged when AC waveform or pulse high voltage is applied between the center electrode and the outer electrode. At this time, when a voltage of about several KV is applied at KHz, air plasma can be obtained. In addition, if the plasma is continuously discharged, the effect of the resistance of the electrode, the capacitance and impedance of the plasma reactor, and the temperature rise of the plasma gas due to the air ionization of the plasma are cooled by droplets supplied in the wet process of the air purifier.

(2) Formaldehyde removal by molecular recognition polymer (MIP, Molecular Imprinted Polymer) filter

Molecular recognition polymers can cross-link a polymer matrix with a molecule that can be imprinted (a template) and a unit (functional monomolecule) that has the function of reacting with the template by hydrogen bonding, electronic interaction, and coordination of metal ions. It is made by polymerizing a mixture of an excess of inert cross-linker with a specific function, and by removing the template molecule from the polymer made in this way, a binding site is formed with the chemical function and the three-dimensional structure of the template complementary to each other. , this polymer is called a molecular recognition polymer filter.

13 is a partial cross-sectional perspective view showing a molecular recognition polymer filter. Referring to FIG. 13 , the molecular recognition polymer filter 50 includes a nonwoven fabric 51 and a molecular recognition polymer functional polymer 55 formed on the nonwoven fabric 51 to filter ultrafine dust. In the molecular recognition polymer functional polymer 55 , a cavity 55a perforated to a nano size and porosity is formed by ultraviolet light.

14 is a schematic view showing a manufacturing process of the molecular recognition polymer filter of FIG. 13 . Referring to FIG. 14 , a nonwoven fabric in which a Molecular Imprinting Polymer resin (MIP Resin) is formed on one surface is prepared. In manufacturing the polymer filter, the nonwoven fabric is mounted to be movable at a predetermined speed by a predetermined driving unit. A nano-sized porous cavity is formed on the MIP resin by a roll-mounted working nano-mold. Here, the nano-mold may include a quartz roll capable of transmitting ultraviolet (UV) light, and a UV light source embedded in the quartz roll, and during the manufacturing process, UV light is transmitted through the roll printing system to the surface of the MIP resin. The cavity can be formed by irradiating it at predetermined intervals.

That is, after dissolving the template molecule (template) in a solvent (porogen), a complex of polymerizable functional units having a functional group capable of binding to a part of the template molecule is formed. pre-sorted and combined. Polymerisation is carried out by adding an excess of a crosslinking agent and a polymerization initiator in order to maintain the alignment of the functional unit bound to the template molecule. By removing the template from the polymerized polymer, a molecular recognition polymer with stereospecific voids consistent with the template molecule is synthesized.

The molecular recognition polymer filter collects ultrafine dust such as volatile organic compounds (VOCs) through a polymer reaction. That is, the functional monomer forms a polymer matrix through a self-assembly process with respect to a template such as VOCs, and filters ultrafine dust by collecting VOCs and the like. The ultrafine dust collected in this way can be removed from the molecular recognition polymer filter through a removal process such as washing. The air purifier configured as described above has the advantage of being able to collect ultrafine dust of PM2.5 level while simplifying the configuration by employing a molecular recognition polymer filter.

Hereinafter, a street lamp-type air purifier will be described with reference to each of FIGS. 15 to 18 .

15 is a perspective view showing a street lamp and a street lamp type air purifier detachable thereto. Referring to FIG. 15 , the street lamp-type air purifier according to the embodiment of the present invention is applicable to all street lamp poles installed in the city center and general roads. In particular, intensive installation is carried out in areas with severe fine dust or in urban areas where a lot of fine dust is generated.

Referring to FIG. 16 , the street lamp type air purifier has a structure that can be easily detached from the street lamp, and can be easily separated from each other. Therefore, since it is possible to attach and detach the street lamp pole, it is possible to move and install it according to the time of occurrence of fine dust and the needs of the region.

Here, the street lamp-type air purifier can be applied to the air purifier described with reference to FIGS. 1 to 14 above. That is, referring to FIG. 17 , the air purifier processes the wet-type fine dust through a microfluidic coagulation process, and processes the release dust by drying it. Thereafter, the dust is treated in a dry manner through an ultrafine dust filter, and the air is treated in a functional type such as deodorization/purification.

Here, in treating the release dust, it is possible to separate the dust using the cyclone principle, as shown in FIG. 18 .

As described above, by installing an air purifier using a street lamp pole, there is an advantage in that it is easy to secure an installation space in the city center and maintenance is convenient.

The above-described embodiments are merely exemplary, and various modifications and equivalent other embodiments are possible from those of ordinary skill in the art to which the present invention pertains. Therefore, the true technical protection scope of the present invention will have to be determined by the technical idea of the invention described in the claims.

41: nano filter
47: carrier
50: molecular recognition polymer filter

Claims (3)

In the air purifier,
a housing in which the solution is accommodated;
a wet scrubber that aggregates fine dust particles suspended in the air in a mist form;
a fine particle separator installed in the housing to diffusely separate fine dust particles in the mist and dilute the separated fine dust particles in the solution;
a first filter unit installed on a flow path of air passing through the fine particle separator and filtering fine dust diluted in the solution or contained in the air;
Plasma flexible electrode having a fabric structure that is discharged in the atmosphere without external gas supply;
An air purifier comprising a molecular recognition polymer filter for filtering ultra-fine dust contained in the air that has passed through the first filter unit. According to claim 1,
The wet scrubber,
a water tank containing a spray solution therein;
a mist generator for generating mist from the spray solution;
a spraying unit for spraying the mist generated by the mist generator onto the contaminated air;
The air purifier comprising a plurality of sterilization balls accommodated in the water tank and coated with silver iodide. 3. The method of claim 1 or 2,
The molecular recognition polymer filter,
non-woven fabric;
It is formed on the nonwoven fabric and contains a molecular recognition polymer functional polymer that filters ultra-fine dust,
The molecular recognition polymer functional polymer is an air purifier, characterized in that it is perforated in a nano-sized porosity by ultraviolet light.

Images