CN107842936A - Efficient Jing Yin air purifier - Google Patents

Efficient Jing Yin air purifier Download PDF

Info

Publication number
CN107842936A
CN107842936A CN201710813324.0A CN201710813324A CN107842936A CN 107842936 A CN107842936 A CN 107842936A CN 201710813324 A CN201710813324 A CN 201710813324A CN 107842936 A CN107842936 A CN 107842936A
Authority
CN
China
Prior art keywords
air
sound
air purifier
jing yin
blower fan
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
CN201710813324.0A
Other languages
Chinese (zh)
Inventor
曾筱瑚
英瓦尔·黑尔格伦
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CN107842936A publication Critical patent/CN107842936A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • 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
    • B01D46/0002—Casings; Housings; Frame constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F8/158—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 active carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/16—Separation devices for cleaning ambient air, e.g. air along roads or air in cities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/30—Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
    • 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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4236—Reducing noise or vibration emissions
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Abstract

The present invention relates to air purifier field, discloses efficient Jing Yin air purifier.The peace and quiet that the air purifier that in the market provides often is designed as far as possible are low with energy consumption, it means that their detergent powers are weak poorly efficient.By the present invention in that solve this problem with powerful blower fan, by the air of purification with air blast guiding fuel injection to ceiling, therefore reduce the influence of furniture as far as possible and so that all air in whole room can be recycled and purified.Noise from blower fan is attenuated in the special sound trap in the regions such as outlet.Present invention is mainly used for home environment and PE such as library and kindergarten.

Description

Efficient Jing Yin air purifier
Technical field
The present invention relates to air purifier field, more particularly to efficient Jing Yin air purifier.
Background technology
The present invention relates to a kind of efficient and simultaneously Jing Yin air purifier, and it is had time to existing in the market The improvement of gas purifier.
In the access state and Beijing several times after, particularly in autumn and winter, it has to breathe the air of dirt, pollution level Air quality compared to Europe is at least high more than 15 times, and it is that what factor really controls market to produce interest research The design present situation of the air purifier of upper " bad ", these air purifiers are the purifications that many Chinese buy and trusted at present Device.After it have studied the air purifier series of family expenses and PE, including test the sky of some well-known manufacturer's productions Gas purifier, it was concluded that the performance of currently available product is not good enough.
1) manufacturer is using low energy consumption as main selling point, so excessively emphasizing low energy consumption, therefore client buys power consumption Minimum model, such as 15W, but this power is totally insufficient so that produce can be by the reasonable air-flow of filter, so actual On need a few hours to clean the air in a room.The reason for purification efficiency is low is that air purifier adjacent domain occurs A kind of slowly air-flow convolution, substantially simply purifies its neighbouring air.Obviously the knowledge on air flow is that industry is excellent First consider.
2) another main selling point is noise level dBA caused by air purifier but it is defined and still striven at present By, such as the lowest noise level of bedroom sleep pattern, so that manufacturer's competition is reduced with minimum fan speed Noise, using low-power fan and slowly rotate rather than using strong fan, its result and 1st section above it is described similar. Commercially it is not present using the air purifier of other noise reduction technologies at present.
3) how effective the selection of a key problem of design air clarifier certainly filter species, i.e. filter be Ground captures fine particle, and such as less than 2.5 μm, this is the particle most dangerous to human and animal.Here, the HEPA filterings of main flow Device is individually to do leak-testing, therefore with high costs, and also has high air-pressure drop, thus need high-power blower but It is thus also brings loud noise, so is not suitable for household application market.For example, the filters of HEPA 13 can filter 99.97% 0.3 μm of special test dust, i.e., only a particle passes through filter.Using HEPA filters Household Air Purifier not Any added value is brought to client, it is as follows.
4) as described above, low air flow amount and quiet low-power fan receive favor, here it is why using not The interest of same pseudo- technology is booming.One example be by high-frequency discharge with so that charge dust particles and be bonded at one Rise, and become easier to capture in relatively inexpensive coarse filter.The shortcomings that this and similar approach is to form ozone, and this is There is the gas of harm to the mankind, and powered dust is easily adhered on the wall in room.
5) air purifier of in the market is it may be said that mainly there is two types.The first is that air enters in side, outlet Mouth side opposite in the horizontal direction.Second is that air enters from bottom, is discharged in the horizontal direction in side or more sides. Substantially the inhibition of furniture is not considered and is optimized, and along with low air flow amount, so can not effectively purify The volume in whole room.
The present invention is by solving above-mentioned relevant issues with feature specified in independent claims.
The content of the invention
It is made up of according to the air purifier of the present invention square, circular or other shape of cross section vertical orientations shells, And three regions can be described as including, first lower inlet area, its have be used for pollute air entrance and One or more filter elements are equipped with, in the latter case, at least one is active carbon filter or zeolite filter, with Just particle and absorption smell and so-called VOC gas are captured.Between castor or footing that pollution air passes through outer casing bottom Bottom air vent enters, or (and) entrance of outer casing underpart entry zone hole.Although filter inhibits downward leakage in itself Noise, but the enclosure in the region is also covered with the acoustic material beneficial to sound-absorbing.It can also use herein more first The sound trap entered.There is an intermediate region above entrance area, the closed blower fan or installed on the board of reasonable power is installed Several less blower fans, such as connect on plate inside the housing.It is but one large-scale for comparing the several small-sized fans of installation Blower fan should be preferred, and actually these small fans can not establish enough pressure and flow.On intermediate region, finally have The exit region of one purification air, it guides the air after purification to be directed to ceiling substantially, and this region further comprises one Individual sound trap so that fan noise can not be reflected but decayed by sound-absorbing material so ear can not be reached directly first.Going out There is a lid at the top of the domain of mouth region, its exit opening defines the muzzle velocity of purification air.To there is big part furniture and big Room area and higher ceiling, the exit opening area on lid can be reduced, such as be subtracted by an insert Small aperture area is to realize higher muzzle velocity, so that it is guaranteed that the air of all volumes in room can be recycled to purification of air In device.Set in addition, exit region enclosure includes with intermediate region identical sound-absorbing material, and an aerodynamics Meter and made of sound-absorbing material " baffle thing ", or be a solid, as long as surface covers sound-absorbing material." baffle Thing " is lain in a horizontal plane between fan outlet and the exit opening of lid, to eliminate the possibility of the sound from fan rotating part Property and will not be reflected by housing and mozzle and be distributed by air purifier exit opening.Mozzle is also by sound-absorbing material It is made, or only can also reaches the purpose of noise attenuation in the mozzle of surface covering sound absorbing layer.
Shell with more thick and heavy rubber-like cloth covering fan is also wise move, so as to preventing fan blade from disturbing or The structure of person and surrounding causes caused vibration and sound in this structure.Have between the filter and fan installation plate of topmost One is used as the space of pressure equalizing chamber, and the space must have enough height, at least 40mm, so as to be obtained on filter surfaces Equally distributed negative pressure.
Select blower fan, filter type and noise-reducing design are the essence of the present invention, i.e., we be not intended to user be only because For the air purifier of all air that quiet factors selects weaker blower fan and can not purify common bedroom, this kind of clarifier All air also can not be all even purified within a few houres with a hour or with high-grade filter.Test and flow rate calculation are Through further clearly illustrating, by the air of purification formed beam be oriented to ceiling be it is optimal, and air beam should have compared with Strong energy, best speed should be greater than 3.5m/s, and then air spreads along room wall, are finally inhaled into air purifier and enter The purification of a row new round.Being had based on Jing Yin air purifier of the invention can convey at least 550m's 3/ hour (m3/h) Blower fan, it means that there is about 30 cubic metres of air in 12 square metres of bedroom and by about 18 times/h of clarifier, and in other words 3 Minute is once.If in this case, we install an E11 filter, according to the parameter of manufacturer, once pass through filtering Device can capture the 95% of the test dust being made up of 0.3 μm of test particle.Volume of air has passed through clarifier in 6 minutes rear chambers Twice, we realize the purification of more than 0.3 μm of particle (1- (1-0.95) 2)=99.75% in theory, that is, using H13 filter air clarifiers have effect of the flow of half after working 6 minutes.It is bigger but it is clear that air pressure using density Mechanical resistance Li Genggao filter purify and energy project in terms of for be insignificant, only result in in clean rooms own The worse clean-up effect of air.Solve the need of those people for wanting the best product of in the market according to the air purifier of the present invention Ask, i.e., there is Jing Yin and efficiency high clarifier for furnished room.
Define that the sound level of an air purifier is generally relevant with the air quantity of offer, and proper method is, will be in spy The air quantity per hour (cube m/h) divided by sound level (decibel) of set a distance.For example, in maximal rate.This drawn be Number is efficiently and quiet in 10 cubes ms/h/decibels of air purifier.Existed according to the air purifier that the present invention makes Air outlet can be horizontally mounted in some cases so that the air stream being cleaned is emitted directly toward metope rather than ceiling, horizontal The precondition that the clarifier of air outlet effectively purifies to all air in room is that furniture is there is no in room.
Brief description of the drawings
The sectional view of one embodiment of the present of invention is shown in Fig. 1.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Air purifier is made up of square, circular or other shape of cross section vertical orientations shells (1), and can be by It is described as including three regions, first is that lower inlet area with entrance 2a or 2b, or both has concurrently, receives to come from The contaminated air of environment and the filter 3a and 3b to be connected equipped with one or more, wherein in the latter case, extremely Few one be active carbon filter or zeolite filter type, to capture particle and absorption peculiar smell, or by ventilation from outer Flow out in portion.Contaminated air from the bottom 2a between castor 4 or leg either (and) the hole 2b below shell enters, also It is the lower zone entrance of entrance area.Although filter element 3a, 3b oneself can suppress the sound revealed downwards, shell Inside covers the material 5b and 5c beneficial to sound-absorbing.Have an intermediate region above inlet region, the region have one it is closed Strong fan 6, or installed on the board 7 several less blower fans, such as the plate being connected on shell 1.But large-scale wind Machine 6 should be better than the selection of several less blower fans, and small blower fan can not produce enough pressure and flow.On intermediate region, Finally there is the exit region of a purification air so that by the air directive ceiling direction after purification, and exit region is also Including sound trap mechanism 5a, 9 and 10, it is arranged so as to cause fan noise from directly reaching ear, but have passed through sound-absorbing material Decay.There is a lid 11 at the top of exit region, it exports the rate of outflow that 8 openings decide purification air.It is in Tool is more, under the big and high ceiling environment of room area, can reduce the opening 8 of lid, such as reduce out by an insert Open area is to realize higher muzzle velocity, so that it is guaranteed that the air in whole room is able to recycle by clarifier.Exit region In sound trap include " a baffle thing " 9 by aerodynamic design and made of sound-absorbing material, or be a solid, Want surface to cover sound-absorbing material also may be used." baffle thing " 9 horizontal positioned fan disappears between the exit opening 8 of outlet 6 and lid The possibility come out except the sound of the motion parts from fan by air purifier exit opening 8.Mozzle 10 is also by inhaling Sound material is made, or only on surface, covering sound absorbing layer can also reach the purpose of noise attenuation.
It is also wise that the shell of fan is covered with the cloth 12 of more thick and heavy rubber-like, prevent fan blade particularly or with The structure of surrounding interferes, so as to produce vibration and sound in the structure shown here.Topmost filter 3b and there is fan 6 Plate 7 between exist that serve as the space of equal pressure chamber, it must have at least 40mm enough height, certainly when making small air Just it is not necessarily required during clarifier so big.So that filter has equally distributed negative pressure surface thereon.
In a word, presently preferred embodiments of the present invention, all equalizations made according to scope of the present invention patent be the foregoing is only Change and modification, it should all belong to the covering scope of patent of the present invention.

Claims (10)

1. efficient Jing Yin air purifier, including the shell (1) being approximately vertically oriented, shell (1) includes three functional areas, three Functional areas include the lower entrances of the filter element (3a, 3b) with least one entrance opening (2a, 2b) and one or more Region and with one or more blower fans (6) intermediate region, the blower fan (6) from entrance area by filter element (3a, 3b) suck air and the air after purification be discharged into by surrounding environment by upper outlet region, it is characterised in that：Purify air After the sound trap mechanism (5a, 9,10) in exit region, purification air is penetrated by one or more condensed airs The outlet (8) of stream is upwardly directed ceiling.
2. according to the efficient Jing Yin air purifier described in claim 1, it is characterised in that when blower fan (6) is run with maximal rate When, the average speed of upflowing air stream is more than or equal to 3.5m/s.
3. efficiently Jing Yin air purifier according to claim 1, it is characterised in that sound trap mechanism (5a, 9,10) is by inhaling Sound material is formed or surface is provided with sound-absorbing material layer, and the sound that blower fan rotates is declined by colliding sound trap mechanism (5a, 9,10) Ear is reached after subtracting.
4. the efficient Jing Yin air purifier according to claim 1 or 2 or 3, it is characterised in that sound trap mechanism (5a, 9, 10) " barrier (9) " based on aerodynamic design are included, " barrier (9) " are made up of sound-absorbing material or surface covering There is sound-absorbing material layer, " barrier (9) " are horizontally set on outlet (8) to the path of blower fan (6) air outlet, so as to prevent blower fan (6) noise is directly entered ear.
5. efficiently Jing Yin air purifier according to claim 1, it is characterised in that noise reduction layer is provided with entrance area (5b, 5c).
6. efficiently Jing Yin air purifier according to claim 1, during 3 meters of distance, it has per small with highest rotation speed of fan When the ratio that flows through between air quantity and noise level be more than 10m3/h/dBA。
7. efficiently Jing Yin air purifier according to claim 1, it is characterised in that sound trap mechanism (5a, 9,10) is also wrapped Include be arranged on outlet (8) be made up of sound-absorbing material or surface have sound absorbing layer mozzle (10), purification air pass through water conservancy diversion (10) are managed from outlet (8) discharge.
8. efficiently Jing Yin air purifier according to claim 1, it is characterised in that air cleaner (3a, 3b) and wind Equal pressure chamber (13) is formed between machine (6) air intake.
9. it is according to claim 8 efficiently Jing Yin air purifier, it is characterised in that the height of equal pressure chamber (13) be more than etc. In 40mm.
10. efficiently Jing Yin air purifier according to claim 1, it is characterised in that the outer wall of blower fan (6) is provided with rubber Glue noise reduction layer (12).
CN201710813324.0A 2017-04-03 2017-09-11 Efficient Jing Yin air purifier Pending CN107842936A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE17000613 2017-04-03
SE1700061A SE1700061A1 (en) 2017-04-03 2017-04-03

Publications (1)

Publication Number Publication Date
CN107842936A true CN107842936A (en) 2018-03-27

Family

ID=61683298

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201710813324.0A Pending CN107842936A (en) 2017-04-03 2017-09-11 Efficient Jing Yin air purifier
CN201721160348.2U Active CN207907384U (en) 2017-04-03 2017-09-11 Efficient mute air purifier

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201721160348.2U Active CN207907384U (en) 2017-04-03 2017-09-11 Efficient mute air purifier

Country Status (2)

Country Link
CN (2) CN107842936A (en)
SE (1) SE1700061A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019205221A1 (en) * 2018-04-23 2019-10-31 大连理工大学 Multi-channel purifier for removing air-borne microbial particles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018124610B4 (en) * 2018-10-05 2022-03-03 Mann+Hummel Gmbh Stationary ambient air cleaner and ambient air cleaner assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2071976U (en) * 1990-04-05 1991-02-27 丁守宝 Gas curtain type gas purifier
JP2002136819A (en) * 2000-11-06 2002-05-14 Fujitsu General Ltd Air cleaner
CN103861392A (en) * 2014-03-23 2014-06-18 大连兆和科技发展有限公司 Oil mist purifier with sound reducing structure
CN104014204A (en) * 2014-06-18 2014-09-03 黄月媚 Efficient and mute air purifier
CN104456772A (en) * 2014-10-29 2015-03-25 小米科技有限责任公司 Air purifier
CN205026904U (en) * 2015-08-28 2016-02-10 致果环境科技（天津）有限公司 Air cleaner duct attenuation structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2071976U (en) * 1990-04-05 1991-02-27 丁守宝 Gas curtain type gas purifier
JP2002136819A (en) * 2000-11-06 2002-05-14 Fujitsu General Ltd Air cleaner
CN103861392A (en) * 2014-03-23 2014-06-18 大连兆和科技发展有限公司 Oil mist purifier with sound reducing structure
CN104014204A (en) * 2014-06-18 2014-09-03 黄月媚 Efficient and mute air purifier
CN104456772A (en) * 2014-10-29 2015-03-25 小米科技有限责任公司 Air purifier
CN205026904U (en) * 2015-08-28 2016-02-10 致果环境科技（天津）有限公司 Air cleaner duct attenuation structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019205221A1 (en) * 2018-04-23 2019-10-31 大连理工大学 Multi-channel purifier for removing air-borne microbial particles

Also Published As

Publication number Publication date
SE1700061A1 (en) 2018-10-04
CN207907384U (en) 2018-09-25

Similar Documents

Publication Publication Date Title
US5837020A (en) Room air cleaner
KR101921274B1 (en) Side emitting nondirectional air purifier
CN201599882U (en) Air purification fresh air blower
CN104989246B (en) Door capable of purifying air
KR20140015556A (en) High-efficiency air purification device and method
CN207907384U (en) Efficient mute air purifier
CN212179081U (en) Air purifier
CN104501324A (en) Whole-house air purification system
CN106642387A (en) Air purifier
CN104075377A (en) Central oxygen supply air purifier
CN210145759U (en) Air purifier with 360-degree annular air inlet function
WO2015049915A1 (en) Air conditioner
CN104390338A (en) Installation method for indoor air purifier
CN209475834U (en) A kind of air purifier
CN208487703U (en) A kind of air purifier that noise is small
CN211233247U (en) Outdoor fresh air machine
CN104501325A (en) Whole house air purification system
KR102085298B1 (en) Rooftop installable outdoor air purifier
CN208846588U (en) A kind of air purifier
CN208340356U (en) A kind of air purifier of low noise
CN104390292A (en) Whole-house air purifying system
CN112432292A (en) Intelligence air purifier for house
CN201787642U (en) Internal circulation range hood
CN220541286U (en) Fresh air filtering device for heating and ventilation engineering
CN213300396U (en) Air purifier

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180327

RJ01 Rejection of invention patent application after publication