CN105413323A - Air conditioner filter for preventing and controlling haze - Google Patents
Air conditioner filter for preventing and controlling haze Download PDFInfo
- Publication number
- CN105413323A CN105413323A CN201510779884.XA CN201510779884A CN105413323A CN 105413323 A CN105413323 A CN 105413323A CN 201510779884 A CN201510779884 A CN 201510779884A CN 105413323 A CN105413323 A CN 105413323A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- air
- filter cleaner
- conditioning filter
- mol ratio
- 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
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/7815—Zeolite Beta
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0608—Filter arrangements in the air stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
- B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0691—Adsorption filters, e.g. activated carbon
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an air conditioner filter. The air conditioner filter comprises a filtering part, a catalyst part and an outer frame. The filtering part and the catalyst part are arranged in a separable and stacked mode. The edges of the filtering part and the catalyst part which are arranged in the stacked mode are fixed through the outer frame. The catalyst part is composed of a powdery catalyst and comprises carriers, active components and promoter. After haze air passes through the air conditioner filter, PM2.5 particles, nitrogen oxide and oxysulfide are all reduced to an extremely low level, air inside automobiles is effectively purified, and respiratory system heath of people inside automobiles is protected.
Description
Technical field
The present invention relates to automobile air purifying field, be specifically related to a kind of air-conditioning filter cleaner preventing and treating haze.
Background technology
Haze weather is a kind of atmosphere pollution state, haze is the general statement to suspended particulate substance content overproof various in air, and especially PM2.5 (equivalent aerodynamic diameter is less than or equal to the particle of 2.5 microns) is considered to " arch-criminal " that cause haze weather.
The aerosol systems that mist is made up of the small water droplet be suspended in a large number in surface air or ice crystal.Come across autumn and winter season, be the product of ground layer water in air vapour condensation (or sublimating) more.The existence of mist can reduce air transparency, make visibility deterioration, if the horizontal visibility of object is reduced within 1000 meters, just the weather phenomenon of the condensation vapor be suspended in surface air (or sublimating) thing is called mist (Fog).
Haze, also claims the particle such as dust, sulfuric acid, nitric acid, organic hydrocarbon compounds in gray haze (smog) air that air also can be made muddy.The horizontal visibility of object is called mist or mist (Mist) in this phenomenon of 1000-10000 rice.Formed mist time atmospheric humidity should be saturated (when existing if any a large amount of nuclei of condensation, relative humidity not necessarily reach 100% just may occur saturated).Due to the mist scattering of aqueous water or ice crystal composition light and wavelength relationship not quite, thus mist seems to be creamy white or Bluish white and grey.Sulfur dioxide, nitrogen oxide and pellet are the main compositions of haze.
2013, " haze " became annual keyword.In the January of this year, 4 times haze process shrouds 30 provinces (district, city), and in Beijing, only having 5 days is not haze sky.Have report display, in 500 cities of Largest In China, only reach the air quality standard of world health organisation recommendations less than the city of 1%, meanwhile, polluting 10 the most serious cities in the world has 7 in China.
The harm that haze produces human body is as follows:
(1) on the impact of respiratory system
The constituent of haze is very complicated, comprises hundreds of Atmospheric Chemistry particulate matter.The particulate that the mainly diameter be wherein harmful to health is less than 10 microns, as mineral grain thing, sea salt, sulfate, nitrate, Organic aerosol particle, fuel and automobile exhaust gas etc., it directly can enter and stick in human respiratory tract and alveolar.Especially submicron particle can be deposited in upper and lower respiratory tract and alveolar respectively, causes the illness such as acute rhinitis and acute bronchitis.For chronic respiratory disease patients such as bronchial astehma, chronic bronchitis, obstructive emphysema and COPDs, haze weather can make state of an illness acute attack or acute exacerbation.If be in this environment for a long time also can bring out lung cancer.
(2) on the impact of cardiovascular system
Haze sky is also very serious on the impact of human body cardiovascular and cerebrovascular disease, normal blood circulation can be hindered, cause cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage, angina pectoris, miocardial infarction, heart failure etc. may be brought out, make chronic bronchitis occur cor pulmonale etc.
In addition, thick fog weather pressure ratio is lower, and people can produce a kind of sensation of agitation, and blood pressure can increase naturally to some extent.On the one hand often temperature is lower the greasy weather again, and some hypertension, patients with coronary heart disease go to suddenly cold outdoor from warm indoor, blood vessel expands with heat and contract with cold, and blood pressure also can be made to raise, cause the generation of apoplexy, myocardial infarction.The careful reply so heart and brain blood patient must take medicine on time.
(3) haze weather also can cause that surface layer is ultraviolet to be weakened, and make the increased activity of the infectiousness germ in air, infectious disease increases.
(4) child growth is unfavorable for.Because sunshine in greasy weather reduces, children's Ultraviolet radiation is not enough, and in body, vitamin D generates not enough, greatly reduces, serious meeting causes Infant Rickets, children growth slows down to the absorption of calcium.
(5) mental health is affected
Expert points out, there is impact in the lasting large greasy weather on the psychology of people and health, and say psychologically, the large greasy weather can cause oppressiveness, oppressive impression to people, can stimulate or aggravate the state of mental depression.In addition, due to the low pressure that greasy weather light is more weak and cause, some people can produce spiritual sluggishness, listless phenomenon in the greasy weather.
(6) fecundity is affected
There are some researches show, be exposed to the crowd in the air of high density pollution for a long time, the success rate of its sperm the time of fertilization in vitro may reduce.Researcher has also found the association between toxic air and male fecundity decline.
On November 5th, 2013, " climate change Green Book: reply climate change report (2013) " that the Chinese Academy of Social Sciences, China Meteorological Administration combine issue is pointed out, immediate and mid-term China haze weather is totally in increase trend.Wherein, mist number of days is in obviously reducing, and haze number of days obviously increases, and continuation haze process increases significantly.
At present, along with traffic congestion, people treat more and more for a long time in the various vehicles, and because motor space is narrow and small, its impact by haze is the hugest.Automobile, for the purification of air in car, is generally carry out adsorption filtration purification by air-conditioning filter cleaner.
CN104043298A discloses a kind of automobile air-conditioning filter, include housing, the top of described housing is provided with air inlet, the bottom of described housing is provided with air outlet, filament nonwoven filter cloth filter core is provided with in described housing, described filament nonwoven filter cloth filter core is formed by multilayer filament nonwoven filter cloth is stacked, it is characterized in that: be provided with layer of active carbon filter core below the inherent described filament nonwoven filter cloth filter core of described housing, described active carbon filter core comprises the active carbon be wrapped in non-woven fabrics.
The air-conditioning filter cleaner of prior art is all by filter or being used for of adsorbing purifies air, but nitrogen oxide in air or oxysulfide be not by filtering or Adsorption.
Summary of the invention
The object of the invention is to propose a kind of air-conditioning filter cleaner preventing and treating haze, this air-conditioning filter cleaner can purify haze air, and by the sulfur and nitrogen oxides fast decoupled in air, can effective purifying in-vehicle air.
For reaching this object, the present invention by the following technical solutions:
A kind of air-conditioning filter cleaner, it comprises filtration fraction, catalyst member and housing, and described filtration fraction, catalyst member be stacked setting separably, and the described filtration fraction of stacked setting, the edge of catalyst member are fixed by described housing; Described catalyst member is made up of grained catalyst, and it comprises carrier, active component and co-catalyst, it is characterized in that,
Described carrier is β zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.30;
Described active component is the V doped with Ce
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Ce:V
2o
5/ (MoO
3)
x(WO
3)
1-x: TiO
2mol ratio be 0.25:1:2, and described titanium dioxide is anatase crystal, and described active component weight content is in the catalyst 0.3%-10%, preferred 0.5-%-8%, more preferably 2%-5%.Such as, 0.8%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%.Described x is 0.1-0.5, such as 0.2,0.3,0.4.
Described co-catalyst is silver and palladium, and silver is 2:5 with the mol ratio of palladium, and described co-catalyst weight content is in the catalyst 0.3%-6%, preferred 0.5%-5%.Such as, 0.8%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%.
Preferably, the weight ratio of described active component and co-catalyst is 5:1 ~ 2:1.Such as 4.5:1,4:1,3.5:1,3:1,2.5:1.
Described filtration fraction comprises the composition of control haze, and described composition comprises following component,
A) the titanium base iron cerium molybdenum vanadium oxides composite of 6%-20%, the mol ratio Ti:Fe:Ce:Mo:V of its each component is 1:(0.05-0.1): (0.05-0.1): (0.05-0.1): (0.05-0.1);
B) ferric vandate of the zirconium doping of 3%-8%, Zr:FeVO
4mol ratio be (0.02-0.2): 1;
C) active carbon of surplus.
The preparation method of described catalyst can take conventional infusion process and other alternatives, the prior art unrestricted choice that those skilled in the art can grasp according to it, and the present invention repeats no more.
The present invention, by choosing specific catalyst and adsorbent, makes this catalyst/adsorbent produce cooperative effect.Be applied to air-conditioning filter cleaner interlayer, haze air is after described air-conditioning filter cleaner, and PM2.5 particle, nitrogen oxide and oxysulfide are all reduced to pole low-level, has effectively purified air in car, protects the respiratory health of occupant.
Detailed description of the invention
The present invention is described air-conditioning filter cleaner of the present invention by following embodiment.
Embodiment 1
Prepare catalyst by infusion process, carrier is β zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.30, and described active component is the V doped with Ce
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Ce:V
2o
5/ (MoO
3)
x(WO
3)
1-x: TiO
2mol ratio be 0.25:1:2, and described titanium dioxide is anatase crystal, and described active component weight content is in the catalyst 4%, and described x is 0.25; Described co-catalyst is silver and palladium, and silver is 2:5 with the mol ratio of palladium, and described co-catalyst weight content is in the catalyst 1%.
The composition of control haze, described composition comprises following component,
A) the titanium base iron cerium molybdenum vanadium oxides composite of 8%, the mol ratio Ti:Fe:Ce:Mo:V of its each component is 1:0.05:0.05:0.05:0.05;
B) 6% zirconium doping ferric vandate, Zr:FeVO
4mol ratio be 0.1:1;
C) active carbon of surplus.
Described catalyst granules encapsulation is formed catalyst member, air-conditioning filter cleaner is made to comprise filtration fraction, catalyst member and housing, described filtration fraction, catalyst member be stacked setting separably, and the described filtration fraction of stacked setting, the edge of catalyst member are fixed by described housing.
Test when PM2.5 is 300, described contaminated air is passed through described air-conditioning filter cleaner with the speed of 1 meter per second close to respiration rate, test the air through air-conditioning filter cleaner process, its PM2.5 value is 7, the content of nitrogen oxide and oxysulfide all drops to less than 0.1 milligram/cubic metre, is far smaller than the requirement of the Indoor Air Quality standards that GB/T18883-2002 specifies.
Comparative example 1
The carrier of embodiment 1 is replaced with active carbon, and all the other conditions are constant, and PM2.5 value is 42, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Comparative example 2
The Ce of embodiment 1 is replaced with La, and all the other conditions are constant, and PM2.5 value is 47, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Comparative example 3
The palladium of embodiment 1 is replaced with Co, and all the other conditions are constant, and PM2.5 value is 46, and the value of nitrogen oxide and oxysulfide is all higher than 1 milligram/cubic metre.
Above-described embodiment and comparative example illustrate, there is specific contact between several component of catalyst that air-conditioning filter cleaner of the present invention adopts, omit or replace wherein one or more, all can not reach the certain effects of the application, prove to which create cooperative effect.
Applicant states, the present invention illustrates air-conditioning filter cleaner of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned air-conditioning filter cleaner, does not namely mean that the present invention must rely on above-mentioned detailed catalysts and could implement described air-conditioning filter cleaner.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (5)
1. an air-conditioning filter cleaner, it comprises filtration fraction, catalyst member and housing, and described filtration fraction, catalyst member be stacked setting separably, and the described filtration fraction of stacked setting, the edge of catalyst member are fixed by described housing; Described catalyst member is made up of grained catalyst, and it comprises carrier, active component and co-catalyst, it is characterized in that,
Described carrier is β zeolite, and in the skeleton structure of zeolite, Si/ (Si+Al+P) mol ratio is 0.30;
Described active component is the V doped with Ce
2o
5/ (MoO
3)
x(WO
3)
1-xwith TiO
2mixture, Ce:V
2o
5/ (MoO
3)
x(WO
3)
1-x: TiO
2mol ratio be 0.25:1:2, and described titanium dioxide is anatase crystal, and described active component weight content is in the catalyst 0.3%-10%, and described x is 0.1-0.5;
Described co-catalyst is silver and palladium, and silver is 2:5 with the mol ratio of palladium, and described co-catalyst weight content is in the catalyst 0.3%-6%;
Described filtration fraction comprises the composition of control haze, the following component of described composition,
A) the titanium base iron cerium molybdenum vanadium oxides composite of 6%-20%, the mol ratio Ti:Fe:Ce:Mo:V of its each component is 1:(0.05-0.1): (0.05-0.1): (0.05-0.1): (0.05-0.1);
B) ferric vandate of the zirconium doping of 3%-8%, Zr:FeVO
4mol ratio be (0.02-0.2): 1;
C) active carbon of surplus.
2. air-conditioning filter cleaner as claimed in claim 1, it is characterized in that, described active component weight content is in the catalyst 0.5-%-8%.
3. air-conditioning filter cleaner as claimed in claim 2, it is characterized in that, described active component weight content is in the catalyst 2%-5%.
4. air-conditioning filter cleaner as claimed in claim 1, it is characterized in that, described co-catalyst weight content is in the catalyst 0.5%-5%.
5. air-conditioning filter cleaner as claimed in claim 1, it is characterized in that, the weight ratio of described active component and co-catalyst is 5:1 ~ 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779884.XA CN105413323A (en) | 2015-11-13 | 2015-11-13 | Air conditioner filter for preventing and controlling haze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779884.XA CN105413323A (en) | 2015-11-13 | 2015-11-13 | Air conditioner filter for preventing and controlling haze |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105413323A true CN105413323A (en) | 2016-03-23 |
Family
ID=55492131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779884.XA Pending CN105413323A (en) | 2015-11-13 | 2015-11-13 | Air conditioner filter for preventing and controlling haze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413323A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632551Y (en) * | 2003-07-11 | 2004-08-11 | 朱忠义 | Air-purifier of concentrated air-conditioner |
| CN1526998A (en) * | 2003-03-04 | 2004-09-08 | ͬ�Ϳ�ҵ��ʽ���� | Air purifying parts, air purifying unit and air conditioner |
| CN102434924A (en) * | 2011-10-27 | 2012-05-02 | 沈阳建筑大学 | Improvement method of air-conditioner purifier |
| CN102764643A (en) * | 2012-07-16 | 2012-11-07 | 中国科学院生态环境研究中心 | Vanadium-titanium oxide catalyst, and preparation method and application thereof |
| CN102989467A (en) * | 2012-12-13 | 2013-03-27 | 中国科学院生态环境研究中心 | Titanium oxide supported ferric vanadate catalyst, as well as preparation method and use thereof |
| US20140044636A1 (en) * | 2012-08-09 | 2014-02-13 | Exxonmobil Research And Engineering Company | CATALYTIC REDUCTION OF NOx WITH HIGH ACTIVITY CATALYSTS |
| CN104415659A (en) * | 2013-08-19 | 2015-03-18 | 纳米及先进材料研发院有限公司 | Plasma driven catalyst system for disinfection and purification of gases |
-
2015
- 2015-11-13 CN CN201510779884.XA patent/CN105413323A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526998A (en) * | 2003-03-04 | 2004-09-08 | ͬ�Ϳ�ҵ��ʽ���� | Air purifying parts, air purifying unit and air conditioner |
| CN2632551Y (en) * | 2003-07-11 | 2004-08-11 | 朱忠义 | Air-purifier of concentrated air-conditioner |
| CN102434924A (en) * | 2011-10-27 | 2012-05-02 | 沈阳建筑大学 | Improvement method of air-conditioner purifier |
| CN102764643A (en) * | 2012-07-16 | 2012-11-07 | 中国科学院生态环境研究中心 | Vanadium-titanium oxide catalyst, and preparation method and application thereof |
| US20140044636A1 (en) * | 2012-08-09 | 2014-02-13 | Exxonmobil Research And Engineering Company | CATALYTIC REDUCTION OF NOx WITH HIGH ACTIVITY CATALYSTS |
| CN102989467A (en) * | 2012-12-13 | 2013-03-27 | 中国科学院生态环境研究中心 | Titanium oxide supported ferric vanadate catalyst, as well as preparation method and use thereof |
| CN104415659A (en) * | 2013-08-19 | 2015-03-18 | 纳米及先进材料研发院有限公司 | Plasma driven catalyst system for disinfection and purification of gases |
Non-Patent Citations (1)
| Title |
|---|
| 宋天民等: "《炼油工艺与设备》", 28 February 2014, 中国石化出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105233675A (en) | Filter screen for preventing and controlling haze | |
| CN105289127A (en) | Filter screen used for preventing and controlling fog and haze | |
| CN105251273A (en) | Filter screen for preventing and treating haze | |
| CN105327566A (en) | Air purifier for preventing and treating haze | |
| CN105413323A (en) | Air conditioner filter for preventing and controlling haze | |
| CN105251294A (en) | Air conditioner filter for preventing and treating haze | |
| CN105413451A (en) | Air conditioner filter for preventing and controlling haze | |
| CN105251342A (en) | Air conditioner filter for preventing and treating haze | |
| CN105233680A (en) | Air-conditioning filter capable of controlling haze | |
| CN105457411A (en) | Air-conditioning filter for control of haze | |
| CN105344241A (en) | An air-conditioning filter cleaner for control of fog and haze | |
| CN105212359A (en) | A kind of mouth mask preventing and treating haze | |
| CN105435629A (en) | Air condition filter for preventing and controlling haze | |
| CN105233677A (en) | Air-conditioning filter for preventing and controlling haze | |
| CN105214485A (en) | A kind of air-conditioning filter cleaner preventing and treating haze | |
| CN105233676A (en) | Filter screen for preventing and controlling haze | |
| CN105289128A (en) | Filter screen used for preventing and controlling fog and haze | |
| CN105289126A (en) | Filter screen used for preventing and controlling fog and haze | |
| CN105435541A (en) | Filtering mesh capable of preventing and controlling haze | |
| CN105251346A (en) | Filter screen for preventing and treating haze | |
| CN105233580A (en) | Air purifier for preventing and treating haze | |
| CN105233581A (en) | Filter screen capable of controlling haze | |
| CN105258224A (en) | Air purifier for preventing and treating haze | |
| CN105344243A (en) | Air purifier for simultaneous prevention and control of haze and sulfur oxide and nitrogen oxide contamination | |
| CN105289125A (en) | Filter screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |