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WO2022131456A1 - Appareil de purification d'air combinant des fonctions de stérilisation de virus et de mesure de poussières fines - Google Patents

Appareil de purification d'air combinant des fonctions de stérilisation de virus et de mesure de poussières fines Download PDF

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Publication number
WO2022131456A1
WO2022131456A1 PCT/KR2021/006276 KR2021006276W WO2022131456A1 WO 2022131456 A1 WO2022131456 A1 WO 2022131456A1 KR 2021006276 W KR2021006276 W KR 2021006276W WO 2022131456 A1 WO2022131456 A1 WO 2022131456A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
unit
bench
disinfectant solution
supply pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2021/006276
Other languages
English (en)
Korean (ko)
Inventor
박기완
박진희
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongwon Engineering Co Ltd
Original Assignee
Dongwon Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongwon Engineering Co Ltd filed Critical Dongwon Engineering Co Ltd
Publication of WO2022131456A1 publication Critical patent/WO2022131456A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
    • F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/13—Dispensing or storing means for active compounds
    • A61L2209/134—Distributing means, e.g. baffles, valves, manifolds, nozzles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/16—Connections to a HVAC unit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the present invention relates to an air purifying device that combines virus sterilization and fine dust measurement functions usable in a multi-use facility, and to an air purifying device that can be installed in combination with a bench.
  • an air conditioning system In general, in residential buildings such as apartments or high-rise office buildings, an air conditioning system is installed and used for indoor ventilation. The air is exhausted to the outside of the building.
  • a filter for removing dust, ozone, PM 10 , CO 2 , HCHO, total suspended bacteria, CO, NO 2 , VOCs and ozone which is present in the air in underground stations, underpasses, airport terminals, waiting rooms and large buildings
  • a technology has been developed and used to purify underground air by rapidly and efficiently decomposing and removing harmful gases and bacteria in the underground air using a filter with a generator, a catalyst for increasing the contact area, and an ozone decomposition catalyst. Since ozone used to decompose the gas and bacteria remains in a large amount because ozone is used to decompose and remove it, there is a problem that secondary contamination by ozone harmful to the human body occurs, so it is not used.
  • a filter with a built-in contact area increasing catalyst that induces as much contact as possible with ozone and various kinds of harmful gases in the air and increases the contact time to induce rapid decomposition, and the filter with a built-in contact area increasing catalyst It is equipped with a filter with a built-in ozone decomposition catalyst to decompose and remove ozone remaining in the air, and a means to exchange signals with
  • An object of the present invention is to provide an air purifying device that combines virus sterilization and fine dust measurement functions that can be used in multi-use facilities.
  • the present invention provides a case, an air inlet that is located on the upper surface of the case, into which air is introduced, a physical filter unit that is located inside the case and below the air inlet to physically purify the introduced air, It provides an air purification device including a UV sterilization unit for chemically purifying the air that has passed through the physical filter unit and a fan unit for flowing the purified air.
  • FIG. 1 is a view showing a form viewed from the front in an embodiment of the present invention.
  • FIG. 2 is a view showing a form viewed from the top as an embodiment of the present invention.
  • FIG 3 is a view showing a form in which one side of the air purifying device can be opened and closed according to an embodiment of the present invention as viewed from the top.
  • FIG. 4 is a view showing an internal form viewed from the front in an embodiment of the present invention.
  • FIG. 5 is a view showing a front view of a bench unit that can be connected to an air purifier according to an embodiment of the present invention.
  • FIG. 6 is a view showing a view from the top of the bench unit that can be connected to the air purifier according to an embodiment of the present invention.
  • FIG. 7 is a view showing a form in which the air purifier and the bench unit are connected as viewed from the top according to an embodiment of the present invention.
  • FIG 8 is a view showing the form in which the air purifier and the bench unit are connected as viewed from the side according to an embodiment of the present invention.
  • FIG. 9 is a view showing the operating principle of the disinfectant spraying unit according to an embodiment of the present invention.
  • FIG. 10 is a view showing a form in which the bench unit is connected to both sides of the air purifier according to an embodiment of the present invention as viewed from the top.
  • FIG. 11 is a view showing a form in which two bench units are connected to the rear side of the air purifier according to an embodiment of the present invention as viewed from the top.
  • FIG. 12 is a view showing a form in which four bench units are connected to both sides and a rear side of the air purifier according to an embodiment of the present invention as viewed from the top.
  • the present invention is a case 100, located on the upper surface of the case, an air inlet 200 through which air is introduced, and a physical filter unit 300 that is located inside the case and at the bottom of the air inlet to physically purify the introduced air. ), a UV sterilization unit 400 for chemically purifying the air that has passed through the physical filter unit, and a fan unit 500 for flowing the purified air.
  • the present invention is a case 100, located on the upper surface of the case, an air inlet 200 through which air is introduced, and a physical filter unit 300 located inside the case and at the bottom of the air inlet to physically purify the introduced air. ), a UV sterilization unit 400 for chemically purifying the air that has passed through the physical filter unit, and a fan unit 500 for flowing the purified air.
  • the case is a door 110 that can be opened and closed on one side or more, and may additionally include a hinge to enable the opening and closing, and any hinge may be used as long as it is generally used for opening and closing the door.
  • the UV sterilization unit may further include a disinfecting solution spraying unit 600 .
  • the air inlet may further include a suction means to suck the surrounding air.
  • the physical filter unit may include any one or more of a pre-filter 310 , a catalytic filter 320 , and a HEPA filter 330 .
  • the UV sterilization unit may include a filter coated with any one or more of TiO 2 and silver ions, and a UV lamp emitting at least one wavelength of UV-A for activating the photocatalyst and UV-C for performing sterilization.
  • the disinfectant spray unit includes an air pump 610 , an air pump supply pipe 620 , a disinfectant solution 630 , a disinfectant solution storage tank 640 in which the disinfectant solution is stored, a disinfectant solution supply pipe 650 , a spraying means 660 and one or more Consisting of an air discharge hole 670, the air pump supplies air through the air pump supply pipe and the injection means of the disinfectant storage unit to pressurize the inside, and the disinfectant solution supply pipe connected to the air pump supply pipe due to the pressurization
  • the disinfection may be injected into the air pump supply pipe through the disinfection solution, and the disinfectant solution may be sprayed through the injection means.
  • the air discharge hole is connected to one side of the fan unit to supply air saturated with the disinfectant solution, and the fan unit is connected to the air discharge hole at one side to receive the air saturated with the disinfectant solution. may be included.
  • the spraying means for spraying any one or more of air and disinfectant solution through the air pump supply pipe may be sprayed in the form of droplets of 0.1 mm to 2 mm or less.
  • the fan unit may have a fan for flowing air to the outside in the center and an air flow hole on at least one surface so that the flowed air flows to the outside surface.
  • the physical filter unit may include any one of a pre-filter which is a silver ion-impregnated filter in which 1% to 30% of silver ions are impregnated, and a catalytic filter composed of any one or more of silver ions, activated carbon, and zeolite.
  • a pre-filter which is a silver ion-impregnated filter in which 1% to 30% of silver ions are impregnated
  • a catalytic filter composed of any one or more of silver ions, activated carbon, and zeolite.
  • the UV sterilization unit may have a multi-layer structure made of silver nano-mesh and honeycomb type.
  • the disinfectant solution may include any one or more of ethanol and hypochlorous acid.
  • the air purifying device may include an air quality measuring sensor in the device, or it may be possible to control the operation through interlocking with an air quality measuring sensor not installed in the device through a wireless or wired connection.
  • the air quality measuring sensor may be a sensor for measuring fine dust.
  • the air purifier may further include a control unit for controlling the operation of the device and a display unit 700 for confirming the operating state.
  • a bench unit connected to one side of the air purifying device through which air flowing from the fan unit is introduced may be additionally connected.
  • the air flowing from the fan unit and introduced into the bench unit may be air containing the disinfectant solution sprayed from the inside of the air purifier.
  • the bench unit 1000 includes a support leg 1100 , a damper 1300 for controlling the inflow of air supplied from the fan unit, and a moving pipe 1200 disposed so that the air passing through the damper passes through the inside of the bench. ) and a bench control means for controlling the operation of the damper.
  • a heating sheet installed on one side of the bench may be installed, and the temperature of the heating sheet may be controlled by the bench control means.
  • a plurality of dampers and moving pipes of the bench unit may be installed, and operation may be controlled through at least one of date data and an external temperature sensor by the bench control means.
  • the operation of the heated seat may be controlled through any one or more of a proximity sensor and date data by the bench control means.
  • the bench unit may have a modular form, and a plurality of bench units may be coupled through a coupling unit provided on one side of the bench unit.
  • one or more armrests may be installed on the upper surface of the bench unit to separate the seated seats, and an air ejection unit 1400 for ejecting the air introduced therein to the outside is included on one side where the armrest is installed.
  • the air blowing unit may be in a perforated form, and may additionally include a blowing unit to facilitate discharge.
  • the module connecting means for connecting the modules may also serve as a passage to enable the flow of air.
  • the module connecting means may have a semicircular shape, so that the angle of the module disposed when the module is connected may be in the range of 90° to 180°.
  • one or more air induction fans may be additionally included in the bench so that the flow of air supplied from the fan unit can be made in one direction.
  • the air inlet located on the upper surface of the case may have a lattice form or a form consisting of columns arranged vertically or by heating.
  • the display unit may be installed on one side of the case to check the operating state of the air purifier, and a control button may be shown on the display unit to enable the display unit to be controlled by interworking with the control unit.
  • the plurality of moving pipes installed inside the bench unit are simultaneously disposed left and right along both long sides of the bench unit, and the moving direction of air can be adjusted with one damper.
  • only one of the left and right may be disposed to the end of the bench, and the end may be perforated to allow air to be discharged to the outside.
  • the bench is provided in the form of a module, and one bench may be connected to one side of the air purifier.
  • a plurality of the air flow holes are provided, a plurality of the benches may also be connected.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

La présente invention se rapporte à un appareil de purification d'air comprenant : un boîtier ; une unité d'entrée d'air, située au-dessus du boîtier, dans laquelle circule de l'air ; une unité de filtration physique, située à l'intérieur du boîtier et en dessous de l'unité d'entrée d'air, pour purifier l'air qui a circulé ; une unité de stérilisation par UV pour purifier chimiquement l'air qui a traversé l'unité de filtration physique ; et un ventilateur pour déplacer l'air purifié.
PCT/KR2021/006276 2020-12-15 2021-05-20 Appareil de purification d'air combinant des fonctions de stérilisation de virus et de mesure de poussières fines Ceased WO2022131456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0175814 2020-12-15
KR1020200175814A KR102277275B1 (ko) 2020-12-15 2020-12-15 바이러스 살균 및 미세먼지 측정 기능을 결합한 공기정화장치

Publications (1)

Publication Number Publication Date
WO2022131456A1 true WO2022131456A1 (fr) 2022-06-23

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KR (1) KR102277275B1 (fr)
WO (1) WO2022131456A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR102696393B1 (ko) 2021-11-25 2024-08-20 주식회사 렘바이러스 공기 중에 존재하여 질병을 유발하는 바이러스 또는 세균들을 제거하는 바이러스 제거 필터 및 바이러스 제거 장치

Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2607203Y2 (ja) * 1993-07-16 2001-05-28 ミナト産業株式会社 空気清浄装置
JP2003227622A (ja) * 2002-02-04 2003-08-15 Techno Ryowa Ltd 殺菌水を用いた除菌脱臭空調システム
JP2006340843A (ja) * 2005-06-08 2006-12-21 Sanden Corp 空気浄化装置
KR101386401B1 (ko) * 2013-10-08 2014-04-17 (주)구츠 자정기능을 갖는 공기살균정화장치
KR102143758B1 (ko) * 2020-05-26 2020-08-13 주식회사 엔티아이 셀프 살균기능을 갖는 냉온 벤치

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KR102079607B1 (ko) 2018-06-20 2020-04-07 한국에너지기술연구원 지하철 역사 내 지하수를 이용한 공기 정화장치
KR102098892B1 (ko) 2018-10-29 2020-04-09 애프터레인 주식회사 벤치 형태 식물 식재형 공기 정화기용 식물 식재 모듈 및 상기 벤치 형태 식물 식재형 공기 정화기용 식물 식재 모듈을 포함하는 벤치 형태 식물 식재형 공기 정화기

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2607203Y2 (ja) * 1993-07-16 2001-05-28 ミナト産業株式会社 空気清浄装置
JP2003227622A (ja) * 2002-02-04 2003-08-15 Techno Ryowa Ltd 殺菌水を用いた除菌脱臭空調システム
JP2006340843A (ja) * 2005-06-08 2006-12-21 Sanden Corp 空気浄化装置
KR101386401B1 (ko) * 2013-10-08 2014-04-17 (주)구츠 자정기능을 갖는 공기살균정화장치
KR102143758B1 (ko) * 2020-05-26 2020-08-13 주식회사 엔티아이 셀프 살균기능을 갖는 냉온 벤치

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Title
GYEONGGI PROVINCIAL GOVERNMENT BROADCASTING STATION GTV: "Fine dust in winter 'do not move'", 27 November 2020 (2020-11-27), XP055949749, Retrieved from the Internet <URL:https://www.youtube.com/watch?v=YHmUUo_C2bQ> *

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