air purifier
The air purifying device addresses filter lifespan and hygiene issues by implementing multi-stage filtration and sterilization, enhancing purification efficiency and hygiene management.
Patent Information
- Application Number
- JP2025003122
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2024-07-17
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2045-01-08
AI Technical Summary
Conventional air purifiers face issues with filter lifespan and hygiene management due to bacterial growth and scattering of foreign matter, leading to contamination.
An air purifying device with multiple stages of filtration, including a water tank, tank units, pumping units, and ultraviolet sterilization, to filter air and water, preventing leakage of collected foreign matter.
Enhances air purification performance by filtering air in multiple stages and removing harmful substances, while ensuring hygienic management by preventing foreign matter leakage.
Smart Images

Figure 0007800962000001 
Figure 0007800962000002 
Figure 0007800962000003
Abstract
Description
[Technical Field]
[0001] The present invention relates to an air purifying device, and more particularly to an air purifying device that can filter air in multiple stages and then discharge the air to the outside. [Background technology]
[0002] Generally, various types of air purifiers are used in homes, industrial sites, etc. For example, air purifiers are used in waste incinerators and factory chimneys to remove harmful substances and dust contained in the exhaust gases.
[0003] Air purifiers are also used in homes to maintain a clean environment, and various filters are installed in air conditioners, fan heaters, vacuum cleaners, etc. For example, in rooms where extremely clean air is required, such as sterile rooms and laboratories, filter-type air purifiers are used to remove pathogenic bacteria and fine dust particles floating in the indoor air.
[0004] However, conventional air purifiers have a purification structure that relies on filters, which have a short lifespan, and bacteria can grow on foreign matter captured by the filter, or the foreign matter can be scattered by external forces, contaminating the inside of the device, making hygienic management difficult.
[0005] Prior documents relating to the present invention include Patent Document 1: Korean Patent Publication No. 10-2022-0072844 (June 2, 2022), which discloses an air purifier. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Korean Patent Publication No. 10-2022-0072844 Summary of the Invention [Problem to be solved by the invention]
[0007] The present invention provides an air purifying device that can discharge air to the outside after filtering the air in multiple stages. [Means for solving the problem]
[0008] The air purifying device according to the present invention includes a water tank having an internal storage space for storing water, a first tank unit having a first auxiliary space formed therein, a second tank unit provided above the water tank and having an internal second auxiliary space vertically communicating with the storage space, a water purification filter unit having a water purification filter provided therein to filter water and air, a first pumping unit provided in a first connecting line connecting the water tank and the first tank unit and pumping water from the storage space to the first auxiliary space, and a second connecting line connected to the first tank unit and filtering outside air and then filtering the air. The water purifying apparatus includes a second pumping unit that pumps water into the auxiliary space, a third pumping unit that is provided in a third connecting line that connects the first tank unit and the water purification filter unit and that pumps the water and air from the first auxiliary space to the water purification filter unit, a fourth pumping unit that is provided in a fourth connecting line that connects the water purification filter unit and the water tank and that pumps the water and air that have passed through the water purification filter unit into the storage space, and a fifth pumping unit that is connected to the second tank unit by a fifth connecting line and that pumps the air that has risen to the top of the second auxiliary space to the outside of the second tank unit.
[0009] The water supply system may further include an ultraviolet sterilization unit installed in the first connecting line and configured to irradiate ultraviolet (UV) rays onto the water moving to the first pumping unit.
[0010] The air conditioner may further include a plurality of partition plates that partition the second auxiliary space into upper and lower sections and have a plurality of passage holes extending therethrough in the upper and lower sections to allow air to pass through.
[0011] The apparatus may further include an air filter disposed at the inlet side of the second pumping unit for filtering air.
[0012] In addition, the fourth connecting line can introduce water and air into the lower region of the second auxiliary space. [Effects of the Invention]
[0013] The present invention improves air purification performance by filtering air drawn in from the outside in multiple stages, and removes harmful substances contained in water by introducing sterilized water into the air. It also prevents collected foreign matter (such as dust) from leaking to the outside, enabling hygienic management. [Brief explanation of the drawings]
[0014] [Figure 1] 1 is a perspective view showing an air purification device according to the present invention; [Figure 2] 2 is a perspective view showing a state in which a case and a cover are combined with the air purifying device according to the present invention; FIG. [Figure 3] 3 is a perspective view showing the installation state of the partition plate and the movement paths of water and air in the air purifying device according to the present invention. FIG. [Figure 4] 1 is a front view showing an air purification device according to the present invention; [Figure 5] FIG. 2 is a rear view showing a cross-section of the water tank, the first tank portion, and the second tank portion of the air purifying device according to the present invention. [Figure 6] FIG. 2 is a right side view showing the air purification device according to the present invention. [Figure 7] 1 is a plan view showing an air purification device according to the present invention; DETAILED DESCRIPTION OF THE INVENTION
[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, as well as the methods for achieving the same, will become more apparent with reference to the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be embodied in various different forms, and the present embodiments are provided merely to complete the disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art to which the present invention pertains, and the present invention is defined only by the scope of the claims. In describing the present invention, if it is determined that related publicly known techniques may obscure the gist of the present invention, detailed descriptions thereof will be omitted.
[0016] Figure 1 is an oblique view showing an air purifying device according to the present invention, Figure 2 is an oblique view showing the state in which the case and lid are combined with the air purifying device according to the present invention, Figure 3 is an oblique view showing the installation state of the partition plate in the air purifying device according to the present invention and the movement paths of water and air, Figure 4 is a front view showing the air purifying device according to the present invention, Figure 5 is a rear view showing the cross-section of the water tank, first tank section and second tank section of the air purifying device according to the present invention, Figure 6 is a right side view showing the air purifying device according to the present invention, and Figure 7 is a plan view showing the air purifying device according to the present invention.
[0017] 1 to 7, the air purifying device according to the present invention includes a base unit 1, a water tank 10, a first tank unit 20, a second tank unit 30, a water purification filter unit 100, a first pumping unit 200, a second pumping unit 300, a third pumping unit 400, a fourth pumping unit 500, a fifth pumping unit 600, and a control unit 800.
[0018] The base part 1 is placed horizontally on the installation surface, and may have a square panel shape with four peripheral surfaces formed at the same angle along the edge and the top and bottom surfaces formed horizontally, but the shape of the base part 1 can be variously applied as needed.
[0019] The water tank 10 has a storage space 11 of a certain size formed therein for storing water W, and its bottom end may be horizontally connected to the top of the base 1. The water tank 10 may have a hexahedral shape with four peripheral surfaces along the edge formed at the same angle and the top and bottom surfaces formed horizontally, but the shape of the water tank 10 may be varied as needed, and an inlet / outlet pipe 12 for supplying and discharging water W may be provided at the edge of the water tank 10 in an openable and closable manner.
[0020] The first tank unit 20 has a first auxiliary space 21 formed therein, which has a certain size and allows water W and air A to be introduced therein. The lower end of the first tank unit 20 may be horizontally coupled to the upper surface of one side of the water tub 10, and a water level detector 80 for detecting the water level may be provided inside the first auxiliary space 21.
[0021] Here, the first tank part 20 may have a hexahedral shape in which the four peripheral surfaces along the edge are formed at the same angle and the upper and lower surfaces are formed horizontally, but the shape of the first tank part 20 can be applied in various ways as needed.
[0022] The water level detection unit 80 can detect the level of the water W introduced into the first auxiliary space 21, and if the detected water level deviates from the reference water level, can transmit a water level detection signal to the control unit 800 (described later). When the water level detection signal is transmitted from the water level detection unit 80, the control unit 800 can stop the operation of the first pumping unit 200 (described later). If necessary, the operation of the first pumping unit 200, the second pumping unit 300, the third pumping unit 400, the fourth pumping unit 500, and the fifth pumping unit 600 can also be stopped simultaneously.
[0023] 2, a first cover 22 may be openably and closably coupled to the upper end of the first tank part 20. The edge of the first cover 22 may be horizontally mounted on the upper end of the first tank part 20, and although not shown, the lower surface of the first cover 22 and the upper end of the first tank part 20 may have a female-male coupling structure.
[0024] The second tank part 30 has a second auxiliary space 31 of a certain size formed therein so that water W and air A can be introduced therein, and its lower end can be horizontally connected to one upper surface of the water tank 10, and the lower part of the second auxiliary space 31 is vertically connected to the storage space 11 of the water tank 10.
[0025] In this case, the second tank unit 30 may be disposed at the upper part of one side of the water tank 10, and the first tank unit 20 described above may be disposed at the upper part of the other side of the water tank 10 so as to face the second tank unit 30. An installation area may be formed between the first tank unit 20 and the second tank unit 30 so as to place the water purification filter unit 100 described below.
[0026] Here, the second tank part 30 may have a hexahedral shape with four peripheral surfaces along the edge formed at the same angle and the upper and lower surfaces formed horizontally, but the shape of the second tank part 30 can be applied in various ways as needed, and the second tank part 30, the first tank part 20 and the water tank 10 may be arranged in the rear region of the base part 1.
[0027] The storage container may further include a plurality of partition plates 32 arranged horizontally within the second auxiliary space 31 to vertically divide the lower storage space 11 and the second auxiliary space 31, and spaced apart from each other along the vertical direction to divide the second auxiliary space 31 into a plurality of spaces.
[0028] In addition, the partition plate 32 may have a plurality of passage holes 33 formed vertically so that the air A introduced into the storage space 11 can move upward to the top layer of the second auxiliary space 31 . That is, when water W and air A are put into the storage space 11, the water W is accommodated in the storage space 11, and the air A immersed in the water W in the storage space 11 moves upward through the passage hole 33 and can be discharged to the outside of the second tank part 30.
[0029] 2, a second cover 34 may be openably and closably coupled to the upper end of the second tank part 30. The edge of the second cover 34 may be horizontally mounted on the upper end of the second tank part 30, and although not shown, the lower surface of the second cover 34 and the upper end of the second tank part 30 may have a female-male coupling structure.
[0030] The water purification filter unit 100 is for filtering the water W and the air A, and one or more (e.g., three) units may be installed on the top of the water tank 10, and may be disposed in an installation area formed in the gap between the first tank unit 20 and the second tank unit 30. Here, a water purification filter 110 may be provided inside the water purification filter unit 100 for filtering the water W and the air A while passing through them.
[0031] These water purification filter units 100 may be connected to each other at one or more of their upper and lower ends by a connecting pipe, and the water W and air A flowing into the inlet side may be passed along the water purification filter 110 and discharged to the outlet side. The water W and air A that have passed through all of the water purification filter units 100 may be introduced into the storage space 11 of the water tank 10 via a fourth connecting line 44 described below.
[0032] The water purification filter 110 can selectively use materials (sediment, carbon block, etc.) for filtering foreign matter (such as dust) contained in the water W and air A, and the water W and air A that have passed through the water purification filter 110 can be discharged to the outside through the outlet side of the water purification filter unit 100.
[0033] The first pumping unit 200 is provided in the first connecting line 41 connecting the water tank 10 and the first tank unit 20 , and pumps the water W in the storage space 11 to the first auxiliary space 21 of the first tank unit 20 .
[0034] The first connecting line 41 has a flow path passing through it in the longitudinal direction, and both ends of the first connecting line 41 are connected to the front of the water tank 10 and the front of the first tank part 20, respectively, to connect the storage space 11 and the first auxiliary space 21.
[0035] The first pumping unit 200 may be fixedly installed in the front region of the base unit 1 so as to be located in front of the water tank 10, the first tank unit 20, and the second tank unit 30, and the first pumping unit 200 may use a water pump whose inlet and outlet are respectively connected to the first connection line 41.
[0036] In addition, a deck 50 may be provided in the front region of the base 1, forming one or more layers, with a certain width so that the lower end of the first pumping unit 200 can be fixedly connected thereto, and the deck 50 may be provided spaced apart from the upper part of the base 1 by a support stand 60.
[0037] 5, a plurality of spray holes 23 may penetrate in the front and rear direction on the front surface of the first tank part 20 to which the outlet side of the first connection line 41 is connected. The spray holes 23 are formed with a set diameter so that the air A introduced into the first auxiliary space 21 through the outlet side of the first connection line 41 is sprayed in the form of fine microbubbles.
[0038] Meanwhile, the air purification device according to the present invention may further include one or more ultraviolet sterilization units 700 that are installed in the first connection line 41 and irradiate the water W moving to the first pumping unit 200 with ultraviolet light UV, and the ultraviolet sterilization unit 700 can sterilize the water W moving by the pumping pressure of the first pumping unit 200.
[0039] The ultraviolet sterilization unit 700 may have a passage formed therein to allow water W to pass through, and one or more ultraviolet lamps may be provided inside the passage to irradiate ultraviolet light UV toward the water W when turned on, and may be fixedly provided in the front region of the base unit 1.
[0040] For example, when the first pumping unit 200 is driven, the water W in the storage space 11 moves along the first connecting line 41, passes through the passage of the ultraviolet sterilization unit 700, and is then introduced into the first auxiliary space 21 through the first pumping unit 200. During this process, the water W passing through the passage is sterilized by ultraviolet light UV, thereby removing harmful substances contained in the water W.
[0041] The second pumping unit 300 is connected to the first tank unit 20 by a second connecting line 42, and filters the external air W before pumping it to the first auxiliary space 21. The second pumping unit 300 may further include an air filter 310 at its inlet side, which filters the air A and moves it to the second pumping unit 300.
[0042] Here, the second connection line 42 has a flow path passing through it in the longitudinal direction, and both ends of the second connection line 42 are connected to the outlet side of the air filter 310 and the front surface of the first tank part 20, respectively, to connect the air filter 310 and the first auxiliary space 21.
[0043] The second pumping unit 300 may be fixedly installed in the front region of the base unit 1 so as to be located in front of the water tank 10, the first tank unit 20, and the second tank unit 30. The second pumping unit 300 may use an air pump whose inlet and outlet are respectively connected to the second connection line 42, and the air filter 310 may selectively use various filters to filter out foreign matter contained in the air A.
[0044] In addition, the lower ends of the second pumping unit 300 and the air filter 310 may be fixedly connected to the upper surface of the base unit 1 or the upper surface of the deck 50, and the inlet side of the second pumping unit 300 and the outlet side of the air filter 310 may be connected by a separate connecting pipe, with the inlet side of the air filter 310 facing forward of the base unit 1.
[0045] The third pumping unit 400 is provided on the third connecting line 43 connecting the first tank unit 20 and the water purification filter unit 100 , and pumps the water W and air A in the first auxiliary space 21 to the water purification filter unit 100 .
[0046] The third connecting line 43 has a flow path passing through it in the longitudinal direction, and both ends of the third connecting line 43 are connected to the front of the first tank part 20 and the inlet side of the water purification filter part 100, respectively, thereby connecting the water purification filter part 100 and the first auxiliary space 21.
[0047] The third pumping unit 400 may be fixedly installed in the front region of the base unit 1 so as to be located in front of the water tank 10, the first tank unit 20, and the second tank unit 30, and the third pumping unit 400 may use a water pump whose inlet and outlet are respectively connected to the third connection line 43.
[0048] In addition, the outlet of the third connection line 43 may be vertically connected to the inlet formed at the upper end of the water purification filter unit 100, and the lower end of the third pumping unit 400 may be fixedly connected to the upper surface of the base unit 1 or the upper surface of the deck 50.
[0049] The fourth pumping unit 500 is installed in the fourth connection line 44 connecting the water purification filter unit 100 and the water tank 10, and moves the water W and air A that have passed through the water purification filter unit 100 and feeds them into the storage space 11.
[0050] The fourth connecting line 44 has a flow path passing through it in the longitudinal direction, and both ends of the fourth connecting line 44 are connected to the front of the water tank 10 and the outlet side of the water purification filter unit 100, respectively, thereby connecting the water purification filter unit 100 and the storage space 11.
[0051] The fourth pumping unit 500 may be fixedly installed in a front region of the base 1 so as to be located in front of the water tank 10, the first tank 20, and the second tank 30. The fourth pumping unit 500 may be a water pump whose inlet and outlet are respectively connected to the fourth connection line 44. Here, the lower end of the fourth pumping unit 500 may be fixedly coupled to the upper surface of the base 1 or the upper surface of the deck 50.
[0052] At this time, the fourth connecting line 44 can introduce water W and air A into the lower region of the second auxiliary space 31, and the air A introduced into the lower region of the second auxiliary space 31 moves upward into the second auxiliary space 31 through the passage holes 33 of the partition plate 32, and then is discharged to the outside through the fourth connecting line 45, which will be described later.
[0053] That is, the air A introduced into the storage space 11 through the fourth connecting line 44 is immersed in the water W and then moves upward to the top layer of the second auxiliary space 31, so that the air A with foreign matter removed can be discharged into the atmosphere.
[0054] The fifth pumping unit 600 is connected to the second tank unit 30 by a fifth connection line 80 and pumps the air A that has risen to the top of the second auxiliary space 31 to the outside of the second tank unit 20 .
[0055] The fifth connecting line 45 has a flow path passing through it in the longitudinal direction, and one side of the fifth connecting line 45 is connected to the front surface of the second tank part 20 and the other side of the fifth connecting line 45 is exposed to the atmosphere. In this case, the fifth connecting line 45 can exhaust the air A in the second auxiliary space 31 to the atmosphere by the pumping pressure of the fifth pumping part 600.
[0056] The fifth pumping unit 600 may be fixedly installed in a front region of the base unit 1 so as to be located in front of the water tank 10, the first tank unit 20, and the second tank unit 30. The fifth pumping unit 600 may use an air pump whose inlet and outlet are respectively connected to the fifth connection line 45. Here, the fifth pumping unit 600 may have a lower end fixedly coupled to the upper surface of the base unit 1 or the upper surface of the deck 50.
[0057] 4, a backflow prevention member 610 for preventing the reverse inflow of air A may be further coupled to the outlet side of the fifth connection line 45. The inlet side of the backflow prevention member 610 may be connected to the outlet side of the fifth connection line 45, and an internal passage 611 may penetrate in the front-rear direction.
[0058] The passage 611 may further include a protruding tube 612 that protrudes forward from the rear surface of the passage 611 and has an internal through-hole that penetrates in the front-rear direction so as to communicate with the flow path of the fifth connecting line 45, an opening / closing opening 613 that protrudes forward from the front end of the protruding tube 612 and whose widths on both sides gradually decrease toward the front, and an incision hole 614 that is formed at the front end of the opening / closing opening 613, is incised in a direction perpendicular to the direction in which the width of the opening / closing opening 613 decreases, and has a length in the incision direction.
[0059] For example, when air A flows in through the rear of the passage 611, the air A that moves into the opening 613 opens the incision hole 614 in the width direction and is discharged to the front of the protruding tube 612, and the air A discharged through the front of the protruding tube 612 is discharged to the front of the backflow prevention member 610 through the front region of the passage 611.
[0060] At this time, since the opening 613 has a shape in which the width of both sides decreases toward the front, when air A flows backward in the front of the passage 611, the incision hole 614 does not open to both sides in the width direction and maintains a tight seal. In other words, air A flows only in the discharge direction of the backflow prevention member 610, so air A does not flow backward into the second auxiliary space 31.
[0061] The control unit 800 is for controlling the operation of the first pumping unit 200, the second pumping unit 300, the third pumping unit 400, the fifth pumping unit 600 and the ultraviolet sterilization unit 700, and may be electrically connected to an external power supply unit (not shown), and the operation unit 810 may be electrically connected to allow a user to turn the operation on / off.
[0062] Meanwhile, the upper part of the front region of the base 1 may be covered by a case 70. The lower end of the case 70 may be coupled to the edge of the front region, and the first pumping unit 200, the second pumping unit 300, the third pumping unit 400, the fifth pumping unit 600, the ultraviolet sterilization unit 700, and the control unit 800 may be located in the internal space of the case 70. The inlet side of the air filter 310 and the outlet side of the backflow prevention member 610 may be exposed through cutout holes formed in the front and one side of the case 70.
[0063] For example, when the operation unit 810 of the control unit 800 is used to switch to the ON state, the water W in the storage space 11 is pumped into the first auxiliary space 21 by the pumping pressure of the first pumping unit 200, and at the same time, the air A in the atmosphere is pumped into the first auxiliary space 21 through the air filter 310 by the pumping pressure of the second pumping unit 300. During this process, the water W moving along the first connecting line 41 is sterilized by the ultraviolet sterilization unit 700.
[0064] Next, the water W and air A in the first auxiliary space 21 are pumped into the inlet of the water purification filter unit 100 by the pumping pressure of the third pumping unit 400, and then the water W and air A that have passed through the water purification filter unit 100 are re-introduced into the storage space 11 by the pumping pressure of the fourth pumping unit 500. The air A that has been pumped into the lower region of the second auxiliary space 31 moves upward to the top layer of the first auxiliary space 31 through the passage holes 33 of the partition plate 32, and the air A in the first auxiliary space 31 is discharged into the atmosphere by the pumping pressure of the fifth pumping unit 600.
[0065] As a result, the present invention can improve air purification performance by filtering air A drawn in from the outside in multiple stages, and since water W is introduced in a sterilized state together with air A, harmful substances contained in the water W can be removed, and the captured foreign matter (dust, etc.) does not leak to the outside, allowing for hygienic management.
[0066] While specific embodiments of the air purifying device according to the present invention have been described above, various modifications are possible without departing from the scope of the present invention. Accordingly, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims, as well as equivalents thereto. In other words, the above-described embodiments are illustrative in all respects and are not limiting, and the scope of the present invention is indicated by the claims set forth below rather than by the detailed description, and all changes and modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. [Explanation of symbols]
[0067] 1: Base 10: Aquarium 11: Storage space 12: Access control 20: First tank section 21: First auxiliary space 22: First lid 23: Spray hole 30: Second tank section 31: Second auxiliary space 32: Partition board 33: Passage hole 34: Second lid 41: First connecting line 42: Second connecting line 43: Third connecting line 44: 4th connecting line 45: 5th connecting line 50: Deck 60: Support base 70: Case 80: Water level detection unit 100: Water purification filter part 110: Water purification filter 200: First pumping section 300: Second pumping section 310: Air filter 400: Third pumping section 500: 4th pumping section 600: 5th pumping section 610: Backflow prevention member 611: Passage 612:Protruding pipe 613:Opening / closing opening 614: Incision hole 700: Ultraviolet sterilization unit 800: Control unit 810: Operation unit A: Air W: Water
Claims
1. a water tank having an internal storage space for storing water; a first tank portion having a first auxiliary space formed therein; a second tank portion provided on the upper portion of the water tank, the second auxiliary space therein being vertically connected to the storage space; a water purification filter unit having a water purification filter installed therein so that water and air are filtered; a first pumping unit provided in a first connecting line connecting the water tank and the first tank unit, and configured to pump water from the storage space to the first auxiliary space; a second pumping unit connected to the first tank unit by a second connecting line and configured to filter external air and then pump the filtered air into the first auxiliary space; a third pumping unit provided in a third connection line connecting the first tank unit and the water purification filter unit, and configured to pump the water and air in the first auxiliary space to the water purification filter unit; a fourth pumping unit provided in a fourth connection line connecting the water purification filter unit and the water tank, for pumping the water and air that have passed through the water purification filter unit into the storage space; a fifth pumping unit connected to the second tank unit by a fifth connecting line and configured to pump the air that has risen to the top layer of the second auxiliary space to the outside of the second tank unit. An air purifying device characterized by:
2. The water supply system further includes an ultraviolet sterilization unit that is installed in the first connecting line and irradiates ultraviolet (UV) rays onto the water moving to the first pumping unit. The air purifying device according to claim 1 .
3. The second auxiliary space may further include a plurality of partition plates that partition the second auxiliary space into upper and lower sections and have a plurality of passage holes that penetrate the second auxiliary space from top to bottom to allow air to pass through. The air purifying device according to claim 1 .
4. The pump further includes an air filter disposed at the inlet side of the second pumping unit for filtering air. The air purifying device according to claim 1 .
5. The fourth connecting line is Water and air are introduced into the lower region of the second auxiliary space. The air purifying device according to claim 1 .
Citation Information
Patent Citations
Micro-nano ozone emission-reducing system for waste gas
CN106853332A
Deodorizing and purifying system for washing air with ozone-rich water
CN116920597A
JP1975021375A
Kitchen discharge air washing device
JP2005186001A
wet air purifier
JP2008520333A