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WO2025228684A1 - Purificateur d'air - Google Patents

Purificateur d'air

Info

Publication number
WO2025228684A1
WO2025228684A1 PCT/EP2025/060355 EP2025060355W WO2025228684A1 WO 2025228684 A1 WO2025228684 A1 WO 2025228684A1 EP 2025060355 W EP2025060355 W EP 2025060355W WO 2025228684 A1 WO2025228684 A1 WO 2025228684A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
light source
hins
air
ioniser
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.)
Pending
Application number
PCT/EP2025/060355
Other languages
English (en)
Inventor
Lars Henrik DUNBERGER
Alagirisamy NETHAJI
Johan Daniel WENNERSTRÖM
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.)
Blueair AB
Original Assignee
Blueair AB
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 Blueair AB filed Critical Blueair AB
Publication of WO2025228684A1 publication Critical patent/WO2025228684A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • A61L9/22—Ionisation
    • 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
    • A61L2209/14—Filtering means

Definitions

  • the present invention relates to an air purifier with improved performance.
  • Air purifiers work by filtering ambient air through a filter. Accordingly, anything in the air is in theory capturable by the filter. While there are different types of filtration means, from particulate filter to gas filter, it is a necessary consequence of the functioning of an air purifier that they also capture microbes caught in the airflow.
  • US 2019/167833 discloses an air purifier, comprising: a upper cover, having at least one grid column on front terminal of the upper cover; a bottom cover, having at least one grid column on front terminal of the bottom cover; and two groups of ultraviolet light emitting diodes (LEDs), respectively having a heat sink and a ultraviolet light emitting diode (LED), wherein the ultraviolet LED is mounted on the heat sink, and a wavelength range of the ultraviolet LED is between 100 nm and 480 nm; wherein the grid column on front terminal of the upper cover is combined with the grid column on front terminal of the bottom cover to form a column hole through which an air flows out.
  • LEDs ultraviolet light emitting diodes
  • KR 102 204085 (Cha Byeong Ho) discloses an air purifying apparatus with a sterilizing function, comprising: a main body (110) having one side surface on which an inlet (111) is formed, the other side surface on which an outlet (112) is formed, and the inside in which a purification space (113) communicating with the inlet (111) and the outlet (112) is formed and an installation hole (114) communicating with the purification space (113) is arranged; a suction fan (120) introducing external air through the inlet (111) while being driven to rotate in the main body (110); a filter unit (130) arranged in the main body (110) to filter foreign materials of the introduced air; and a sterilizing ray module (140) mounted in the installation hole (114) and having a UV ray panel (141) arranged at the position directed toward the purification space (113) to emit UV sterilization rays toward the air passing through the purification space (113).
  • the sterilizing ray module (140) is detachably mounted in the installation hole (114) while being formed with size to be capable of being gripped by the hand, and has a battery (142) embedded to supply a driving power source to the UV ray panel (141) so as to emit the UV sterilization rays toward a polluted object (10) in a state of being separated from the installation hole (114).
  • a purification device comprises a photocatalyst filter; and a light source module which emits light to the photocatalyst filter to activate a photocatalytic reaction.
  • the wavelength of light whose relative intensity is the strongest among wavelengths of emitting lights is 380 to 420 nm.
  • the photocatalyst filter comprises tungsten oxide.
  • the light source module can be spaced a predetermined distance apart from the photocatalyst filter. According to the present invention, heat dissipation properties can be improved by natural convection.
  • a lighting system includes can include one or more high intensity narrow spectrum light sources configured to emit high intensity narrow spectrum light.
  • the lighting system can further include a power circuit configured to provide power to the one or more high intensity narrow spectrum light sources and a pulsing circuit configured to control delivery of power to the one or more high intensity narrow spectrum light sources so as to pulse the emission of high intensity narrow spectrum light from the one or more high intensity narrow spectrum light sources.
  • WO 2022133535 discloses an air purification system.
  • the system comprises an air inlet for accepting an airflow into the system and an air outlet for the airflow to exit the system, with a conduit between the air inlet and the air outlet.
  • At least one ionizer Disposed within the conduit in the direction of air flow, there is included at least one ionizer creating a first air ionisation zone within which, in use, aerosols and/or airborne particles in incoming air are ionised become charged.
  • the device is provided with one or more ultra-violet (e.g., UV-C) lights.
  • UV-C ultra-violet
  • EP1799330 discloses an air decontamination device comprising an air stream generator (20), a non-thermal plasma filter (22), an ultraviolet radiation emitting device (24), an ozone catalysing device (26), and a hydrocarbon emitter (28).
  • an air purifier comprising an air flow generator, a motor for said air flow generator, a removable filter, and a High Intensity Narrow Spectrum (HINS) light source which is configured to emit light with a peak wavelength of from 380 to 430 nm, and an ioniser, wherein the HINS light source is directed to emit light towards the removable filter; and the HINS light source and the ioniser are coaxially aligned on opposite sides of the removable filter.
  • HINS High Intensity Narrow Spectrum
  • the HINS light source used in the invention is preferably provided by a light emitting diode (LED) system.
  • the HINS light source comprises a light emitting diode (LED).
  • the HINS light source comprises multiple LEDs forming a light cone.
  • An example of a suitable light source is a 405 nm light emitting diode (LED) array (ENFIS PhotonStar Innovate UNO 24; PhotonStar Technologies, UK) powered by a 40 V LED Driver.
  • the array has a peak wavelength around 405 nm and a bandwidth of approximately 19 nm but will, for convenience, be referred throughout as 405 nm light.
  • a HINS light source at from 380 to 430 nm is capable of playing a key role in the purification of air. Not only is this narrow band of light is capable of reducing filter contamination but the HINS light source has less impact on the structural integrity of the filters when compared to other wavelengths and in particular ultraviolet light. Accordingly, the HINS light source can be employed close to the removable filters in air purifiers so as to efficiently decontaminate filters without any negative impact on the filter’s structural integrity and so filtration performance. In contrast it is well known that other light sources such as UV damage the filters when they are employed to decontaminate them.
  • said HINS light source emits light with an average wavelength of from 400 to 410 nm or more preferably from 403 to 407 nm.
  • the most preferred peak wavelength is 405 nm.
  • the HINS light source emits HINS light along a cone axis
  • the ioniser emits an ion cloud along an ionisation axis.
  • the HINS light source emits HINS light in a cone which describes a cone base on the removable filter and wherein the ionisation axis falls inside the cone base on the opposite side of the filter.
  • cone axis is meant the central line that runs through the apex of the light cone emitted by the HINS light source.
  • the cone axis defines the symmetry of the light cone and serves as the reference line for measuring the diameter of the circular pattern created by the HINS light source.
  • cone base is meant the circular footprint of the HINS emission which is cast onto the filter.
  • ionisation axis is meant the central line that runs through the apex of the ionization cone formed by the ioniser.
  • the ionisation axis is perpendicular to the removable filter.
  • the cone base can be represented mathematically and so the radius of the cone base is B tan X, where B is the shortest distance from the HINS emitter to the filter and X is 60 degrees.
  • B is from 5 to 25cm, more preferably from 10 to 20 and most preferably 15cm.
  • the HINS sources are selected and disposed such that the light intensity at the removable filter is from 800 to 5000 lux, preferably from 1000 to 4000 lux.
  • the HINS light source is disposed between the fan and the filter in an air flow direction.
  • the light source in such an embodiment will be directed to emit light towards the removable filter during use so as to bathe the filter in light having the desired wavelength.
  • the HINS light source it is also possible for the HINS light source to be disposed after the filter in an air flow direction so long as the light sources are directed towards the filter.
  • the light source would also be decontaminating the air pulled through the filter should any micro-organisms remain in the air flow unfiltered by the filter.
  • the HI NS light source is disposed from 2 to 50 cm from the filter, more preferably from 4 to 16cm.
  • the removable filter media may be a particulate filter or gas filter while it is also possible that both a particulate and gas filter may be simultaneously employed.
  • the air flow speed measured at the removable filter is known in the art as the media velocity.
  • Media velocity is the velocity at which the air travels through the filter. Media velocity has to be controlled perfectly to ensure that the maximum amount of particles are trapped. T oo fast and many of the pollutants fly straight through unfiltered. Too slow and the purifier is not reaching the farthest comers of your room quickly enough to be effective.
  • the ioniser used comprises an emitter electrode and a ground electrode.
  • the emitter electrode discharges an ion cloud between the emitter and the receiver on application of a suitable voltage, preferably from -10 to 10kV but more preferably around the range -8 to 8kV.
  • the emitter electrode is preferably a point, tip or multiple tips or points for example a brush and is in electrical communication with a voltage source.
  • the emitter electrode is within 20cm, more preferably 15cm, especially preferably 10 cm and most preferably up to 5 cm from the nearest filter medium to be sterilised by bathing it in an ion cloud during activation of the ioniser when required. This distance is the distance from the tip of the emitter electrode to the nearest part of nearest filtration medium, more specifically the part of the filter medium which filters rather than for example a structural frame.
  • the receiving electrode is preferably a metallic part in the shape of a ring so that the resulting ion cloud is in three dimensions as the ions are spent away from the emitter and are then pulled towards the receiver.
  • the receiving electrode is in the form of a cage which extends away from the emitting electrode in an air flow direction. More preferably, the receiving electrode is in the form of a reticulated arrangement and which extends towards the filter. Such extension may present a hemispherical or partial cylindrical shape such that the receiving electrode is downstream in an air flow direction from the emitting electrode.
  • the emitter is centrally disposed between a receiver in the form of a ring.
  • the emitter may be disposed pointing towards or away from the air flow during use but it is preferred that the emitter is pointed towards the surface to be sterilised, for example, an internal wall or a filter medium.
  • the air flow generator generates an air flow commensurate with sterilisation of an internal surface of the air purifier and/or a filter media for a period of from 1 second to 10 hours.
  • a method for sterilising a removable filter in an air purifier by subjecting the filter to HINS light.
  • a method for sterilising a removable filter in an air purifier by (A) subjecting said removable filter to an air draft, and (B) subjecting said filter to HINS light.
  • (A) and (B) are carried out exclusively.
  • the surface to be sterilised is first subjected to an air draft and then when the air draft is stopped, the surface is exposed to a burst of HINS light.
  • the HINS light may come before the air draft.
  • the filter is also subjected to (C) a burst of ionisation from an optional ioniser.
  • the ionisation may come before or after either or both of (A) and (B).
  • sequence of air draft and then HINS light, or vice versa is repeated such that the surface to be sterilised is subjected to both air draft and HINS light on an intermittent basis.
  • (A) has a duration of from 1 min to 10 hours
  • (B) has a duration of from 1 min to 10 hours
  • (C) has a duration of from 1 min to 10 hours.
  • an air purifier comprising a removable particulate or gas filter, an air flow generator, a means for controlling said air flow generator, a first air flow setting with an air filtration air flow speed and a second air flow setting which correlates with sterilisation of an internal surface of the air purifier and/or removable particulate or gas filter and a light source which emits HINS light.
  • the air purifier comprises an operable mode for sterilising an internal surface or a filter medium and whereby the air draft corresponds with said second air flow setting and this is activated either before or after a period of bathing in HINS light.
  • micro-organisms include gram positive bacteria, gram negative bacteria, spores, moulds and fungi as well as any viruses within said micro-organisms.
  • the air flow (A) speed (media velocity) measured at the removable filter is at least 0.1 cms' 1 measured at the filter medium.
  • the measurement at the filter medium is taken from the spatial centre point on the fan side of the filter media surface. Where there is more than one filter medium, the one taken for the air draft measurement is the one which is closest to the air flow generator and so receives the air draft first.
  • the air flow speed measured at the removable filter is from 0.1 to 2.5 cms' 1 . Most preferably, the air flow speed measured at the removable filter is from 0.8 to 1.2 cms' 1 . This is known as ‘low air draft’ as it is below the ordinary media velocity used for air filtration.
  • the purifier ascertains the likelihood of conditions conducive to micro-organism growth and when such conditions are deemed to exist it actuates the air flow generator and/or the light source emitting H I NS light to destroy the microbes on the filter, or even those on the internal surfaces of the purifier.
  • the processor determines that the conditions are conducive to micro-organism growth, for example with reference to inputs from a temperature sensor and a humidity sensor and then with reference to an appropriate look-up table, it either provides an indication, for example by way of a visual or audible signal, or electronically to a remote device such as a mobile phone so that the user is notified that the air flow generator should be employed, or it automatically actuates the fan or impeller at a low speed as described herein, or the ioniser, and which is sufficient to prevent microorganism growth or to directly destroy the micro-organisms. It is important to note that this activation of the ioniser or fan is appropriate only when the device is in stand-by mode or idle.
  • the purifier has first mode in which the choices are either: no action, where the conditions determined by the humidity sensor and temperature sensor are such that no or low micro-organisms growth is anticipated; an alert by way of an electronic signal to a mobile device to alert the user that conditions are favourable to micro-organisms and permitting the option for the user to actuate the fan; and a warning level where the user is warned that micro-organism growth is likely and strongly recommending to the user to actuate the fan or impeller, or the HINS light source.
  • a second mode may operate similarly in that indications are made determined by the input from the temperature and humidity sensors but instead of a warning or an alert, the machine is automatically turned on when conditions are such that micro-organism growth is likely.
  • the processor determines that the conditions are conducive to micro-organism growth it either provides an indication, for example by way of a visual or audible signal, or electronically to a remote device such as a mobile phone so that the user is notified that the air flow generator and/or ioniser should be employed.
  • Temperature sensors are known in the art and are commercially available from Sensirion. Suitable examples of temperature sensors include STS3x series.
  • Humidity sensors are known in the art and are commercially available from Sensirion. Suitable examples of humidity sensors include SHT3x series.
  • the means for controlling the air flow generator and/or light source based on input from said sensors is conducted automatically, for example by a processor.
  • the sensors sense the temperature and/or humidity on a continuous or intermittent basis and send information back to the processor.
  • the processor determines whether the conditions are conducive to micro-organism growth based on at least temperature or humidity.
  • the processor determines whether the conditions are conducive to micro-organism growth based on temperature and humidity. More preferably, the processor determines the likelihood of micro-organism growth additionally based on parameters such as geographical location, time of the day, week, month or season or even the pollution levels as well as any specific conditions that occur, for example virus pandemics or bush fires, and combinations of any of these.
  • the wet seasons are typically defined by the monsoon and occurs in the summer.
  • the summer in Europe and North America is characterised by drier weather.
  • the hemispheres have different seasonal characteristics.
  • the geographical location is determined by GPS or through the purifiers WIFI capability. It may also be provided by way of user input during a set-up process.
  • the purifier is powered by any suitable power source including internal sources, e.g. batteries, and external power sources.
  • the power is used to drive a motor which in turn powers at least the air flow generator and the ioniser where present.
  • the removable particulate filter comprises a frame and a mesh for entraining particles passing through the filter during use.
  • the mesh is polyolefin-based which means that it comprises a polyolefin material in the mesh part of the filter.
  • the frame may also comprise a polyolefin based material but this is not related to the material choice for the mesh part.
  • the polyolefin is selected from polypropylene, polyethylene and mixtures thereof, most preferably polypropylene.
  • the polyolefin-based mesh comprises at least 70% wt. of the mesh (i.e. not including any optional frame part of the filter) polyolefin, more preferably at least 90% wt. and most preferably 99% wt. of the mesh a polyolefin.
  • the polyolefin-based mesh comprises at least 70% wt. of the mesh (i.e. not including any optional frame part of the filter) polypropylene, more preferably at least 90% wt. and most preferably 99% wt. of the mesh polypropylene.
  • the removable particulate filter comprises a high loft spunbound web, a low loft spunbound web, a meltblown web and or a bi-modal fiber diameter meltblown media.
  • the removable particulate filter is a High Efficiency Particulate Air (HEPA) filter.
  • HEPA High Efficiency Particulate Air
  • the filter part of an air purifier is a vital part of its function, air purifiers are not commonly manufactured with a filter in place. They are practically always manufactured separately and most importantly often by a different commercial enterprise than of the manufacturer of the air purifier itself. It is also typical for a manufacturer of filters to manufacture filters for different air purifier models made by different manufacturers.
  • the particulate filter is to be contrasted with the pre-filter or any dust filter which is present. Pre-filters and dust filters are not considered HEPA filters as they do not have the particulate capturing capability exhibited by HEPA filters.
  • the filter is precharged before application to the air purifier.
  • Pre-filters are filters which have a low air resistance and also function as a poke guard, preventing the user from touching the volute or impeller assembly.
  • the pre-filters are not intended to exhibit any major effect in the context of air purification. They do not have the air resistance or particle entrainment capability of dedicated particulate filters.
  • the pre-filter is not a HEPA filter.
  • the purifier of the inventions also comprises a fan or impeller.
  • the fan may be a bladeless fan, an axial fan but it is preferred that the fan is a radial fan.
  • the air purifier comprises an ioniser.
  • the ioniser comprises a corona discharge tip and a receiving electrode.
  • the corona discharge tip is subjected to an appropriate electric voltage it generates an ion cloud between the tip and the receiving or ground electrode.
  • the ioniser is preferably disposed on the interior of said purifier.
  • the purifier comprises an ioniser additionally disposed on the exterior of said device.
  • any external ioniser is disposed at the top of the device. Locating the external ioniser at the top of the device means that domestic dust particles are ionised as they fall through the air towards the ground and are therefore more likely to aggregate as they become charged. As they become more aggregated, they are more easily caught up in the air circulation pattern created by the device and so more easily filtered.
  • the device comprises an interior ioniser and an exterior ioniser.
  • the exterior ioniser facilitating aggregation of domestic dust particles and the interior ioniser facilitating capture of the aggregated dust particles by the removable particulate filter.
  • the ionisation permits less dense filtration media and low air speed (fan) speeds.
  • the air purifier comprises, in an air flow direction, a fan, an ioniser, a removable filter and a HI NS light source.
  • the HI NS light source is disposed so as to bathe the removable filter in HI NS light when the light source is operating.
  • the HINS light source is sufficiently close to the removable filter to destroy micro-organisms during operation.
  • at least one HINS light source is from 1 to 20cm from the closest removable filter, more preferably from 2 to 12 cm.
  • the air flow generator is housed within a volute and more preferably, said ioniser is disposed at or near an outlet on the volute.
  • the volute comprises an air flow outlet through which air flows from the air flow generator towards the removable filter medium, said outlet being defined by a perimeter and preferably comprising a receiving electrode and an associated emitting electrode such that between said receiving and emitting electrode there is formed an ion cloud when emitting electrode is subjected to an appropriate voltage.
  • the receiving electrode may thus be disposed around a portion or all of the perimeter of the outlet.
  • the emitting electrode or corona discharge tip is disposed substantially centrally in the outlet such that air flowing from the volute and towards the removable filter or filters is subjected to an ion cloud.
  • the air purifier comprises a first and second removable filter medium angled with respect to one another such that there exists an acute angle between said first and second media, said acute angle facing an air flow direction, and said purifier comprising an ioniser which during use generates an ion cloud between said first and second filter media.
  • the filters are bathed in an ion filed. While in ordinary circumstances the ion cloud is intended to ionise any particles entrained within the air flow we have surprisingly found that the ion cloud alone provides significant sterilisation of the filter media and internal surfaces of the purifier. This is particularly useful when the purifier is in stand-by mode or turned off whether to conserve energy or merely because the user believes that the air quality is sufficiently good.
  • the ioniser uses considerably less energy than the air flow generator and so it is thus possible to maintain sterile conditions internally without having to turn on the fan.
  • the emitting electrode is disposed substantially between an imaginary line between a proximal end of said first and second filter medium, said proximal ends being towards the air flow generator.
  • the air purifier comprises a pair of filter media angled relative to one another such that they form an acute angle between them.
  • the apex ends of the filter media are touching or are close to one another so that they present an inverted book arrangement with the tip pointing in an airflow direction and the proximal ends of the filter media facing towards the air flow generator.
  • the ioniser is disposed substantially between the proximal ends of the filter media such that the filter media are bathed in an ion filed in use. More preferably, the emitting electrode emits an ion stream in an airflow direction.
  • figure 1 is a schematic showing the imaginary cone base which extends from the HINS source and figure 2 shows the performance of different arrangements of ioniser and HINS emitter tested.
  • figure 1 shows the emitter (3) and a schematic emitter vertex which extends along a HINS cone axis (M) and projects a Centre of Cone Base (CCB) onto a substrate, in practice a filter (not shown).
  • the cone base (CB) is defined by a circle on the substrate and is formed by rays of light (R) emitting from the HINS emitter (3).
  • Figure 2 shows three different dispositions of HINS emitter (3) and ioniser (2) relative to a filter (1).
  • position 1 represented by 1A and 1 B where 1A shows the ioniser (2), the HINS emitter (3) and the filter (1) from the side to show that the ioniser and HINS emitter are on opposite sides of the filter.
  • 1B the same disposition is shown but end on the HINS emitter and ioniser axis.
  • 1 B is shown the spatial coaxial relationship between the ioniser and the HINS emitter.
  • the ion cloud emitted by the ioniser does not meet the HINS emission cone base on the filter.
  • the log reduction is best when the HI NS and the ionizer ae positioned coaxially to ensure that the ion cloud engulfs the light cone from the HI NS.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Purificateur d'air comprenant un générateur de flux d'air, un moteur pour ledit générateur de flux d'air, un filtre amovible et une source de lumière à spectre étroit haute intensité (HINS) qui est configurée pour émettre de la lumière avec une longueur d'onde de pic de 380 à 430 nm, et un ioniseur, la source de lumière HINS étant dirigée pour émettre de la lumière vers le filtre amovible ; et la source de lumière HINS et l'ioniseur sont alignés coaxialement sur des côtés opposés du filtre amovible.
PCT/EP2025/060355 2024-04-29 2025-04-15 Purificateur d'air Pending WO2025228684A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP24173121.5 2024-04-29
EP24173121 2024-04-29

Publications (1)

Publication Number Publication Date
WO2025228684A1 true WO2025228684A1 (fr) 2025-11-06

Family

ID=90924037

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/060355 Pending WO2025228684A1 (fr) 2024-04-29 2025-04-15 Purificateur d'air

Country Status (1)

Country Link
WO (1) WO2025228684A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1799330A1 (fr) 2004-06-30 2007-06-27 Tri-Air Developments Limited Dispositif de décontaminatio d'air et procédé
CN108375137A (zh) * 2016-11-21 2018-08-07 江苏双盛医疗器械有限公司 一种除尘灭菌空气净化器
US20190125904A1 (en) 2017-10-30 2019-05-02 Hubbell Incorporated Pulsing High Intensity Narrow Spectrum Light
US20190167833A1 (en) 2017-12-05 2019-06-06 Jin-Ting Hou Air purifiler
KR102059380B1 (ko) * 2019-09-04 2019-12-26 주식회사 플라랩 플라즈마를 이용한 천정부착형 공기살균 및 시설소독 장치
KR20200044333A (ko) 2018-10-19 2020-04-29 엘지이노텍 주식회사 정화 장치
CN111591862A (zh) * 2020-06-12 2020-08-28 陈稷淑 一种电梯空气净化器
KR102204085B1 (ko) 2019-06-18 2021-01-15 차병호 살균기능이 구비된 공기정화장치
US20220096702A1 (en) * 2020-09-25 2022-03-31 Jibe Lighting North America Limited Liability Company Method and system for led based virus and bacteria removal
WO2022133535A1 (fr) 2020-12-24 2022-06-30 Medair Limited Système et procédé de stérilisation d'air

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1799330A1 (fr) 2004-06-30 2007-06-27 Tri-Air Developments Limited Dispositif de décontaminatio d'air et procédé
CN108375137A (zh) * 2016-11-21 2018-08-07 江苏双盛医疗器械有限公司 一种除尘灭菌空气净化器
US20190125904A1 (en) 2017-10-30 2019-05-02 Hubbell Incorporated Pulsing High Intensity Narrow Spectrum Light
US20190167833A1 (en) 2017-12-05 2019-06-06 Jin-Ting Hou Air purifiler
KR20200044333A (ko) 2018-10-19 2020-04-29 엘지이노텍 주식회사 정화 장치
KR102204085B1 (ko) 2019-06-18 2021-01-15 차병호 살균기능이 구비된 공기정화장치
KR102059380B1 (ko) * 2019-09-04 2019-12-26 주식회사 플라랩 플라즈마를 이용한 천정부착형 공기살균 및 시설소독 장치
CN111591862A (zh) * 2020-06-12 2020-08-28 陈稷淑 一种电梯空气净化器
US20220096702A1 (en) * 2020-09-25 2022-03-31 Jibe Lighting North America Limited Liability Company Method and system for led based virus and bacteria removal
WO2022133535A1 (fr) 2020-12-24 2022-06-30 Medair Limited Système et procédé de stérilisation d'air

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