CN105214237A - A kind of breathing mask of applicable high pollution weather - Google Patents
A kind of breathing mask of applicable high pollution weather Download PDFInfo
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- CN105214237A CN105214237A CN201510780910.0A CN201510780910A CN105214237A CN 105214237 A CN105214237 A CN 105214237A CN 201510780910 A CN201510780910 A CN 201510780910A CN 105214237 A CN105214237 A CN 105214237A
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- filter core
- air
- mask
- adsorption element
- face
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims abstract description 24
- 230000003197 catalytic effect Effects 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000001473 noxious effect Effects 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 12
- 239000010936 titanium Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- MGJBNZOPPRBAEH-UHFFFAOYSA-N [Ag][Ce][Pt] Chemical compound [Ag][Ce][Pt] MGJBNZOPPRBAEH-UHFFFAOYSA-N 0.000 claims description 3
- VEGUWHDSQWYLLI-UHFFFAOYSA-N [O-2].[V+5].[Mo+4] Chemical class [O-2].[V+5].[Mo+4] VEGUWHDSQWYLLI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 27
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 27
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 abstract description 16
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract description 16
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract description 9
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 9
- STNJBCKSHOAVAJ-UHFFFAOYSA-N Methacrolein Chemical compound CC(=C)C=O STNJBCKSHOAVAJ-UHFFFAOYSA-N 0.000 abstract description 8
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 abstract description 8
- 238000000746 purification Methods 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 10
- 239000008096 xylene Substances 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 210000002345 respiratory system Anatomy 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010006784 Burning sensation Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of breathing mask being applicable to highly polluted weather, comprise the mask bodies covered by knitted fabric, described face shield comprises: filter core connecting hole, and filter core is connected with described filter core connecting hole; Lens opening, lens are arranged in described lens opening; Steam vent, the exhaust unit for discharging inner air is installed to described steam vent; And hook, be set to rearward projection, described mask is worn on the face of user to protect face not by the infringement of noxious material, and described filter core, according to the flow direction of air, is successively provided with the first adsorption element, catalytic member and the second adsorption element.Breathing mask of the present invention can when haze PM2.5 reaches more than 1000; be 0 by purification of air to PM2.5; and the removal of benzene in air, toluene, dimethylbenzene, ethylbenzene, styrene, formaldehyde, acetaldehyde, methacrylaldehyde is reached less than 0.01 milligram/cubic metre, protect skin and the eyes of wearer simultaneously.
Description
Technical field
The present invention relates to technical field of air purification, be specifically related to a kind of breathing mask of applicable high pollution weather.
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.Sulfur dioxide, nitrogen oxide and pellet are the main compositions of haze.
In early or mid November, 2015, the city being representative with Shenyang and other places, its haze PM2.5 index reaches surprising 1140, belongs to serious pollution.Under this kind of environment, pollutant not only injures the respiratory system of people, and the organs such as eyes also can be caused to produce burning sensation, the health of damage eyes.
Existing safeguard procedures, be generally adopt mouth mask, mouth mask divides the medical mask only possessing filtering function, and doped with the mouth mask of active carbon.This kind of mouth mask, only play filtering function, can not filter completely the fine particle in air, pernicious gas simultaneously in air, such as sulfur and nitrogen oxides, even the organic pollution such as toluene, formaldehyde, methacrylaldehyde, still enters the respiratory system of wearer, causes very big infringement to healthy by above-mentioned mouth mask.
Meanwhile, described protection, is only placed in nose and mouth, and for other organs of face, such as eyes, without any protective effect.Also have breathing mask on sale at present on the market, its design with reference to breathing mask simplifies.But this kind of breathing mask is heavier, is generally only suitable for protecting operator to use in extreme environments, wears in daily life, comfortableness is very large problem, and meanwhile, its aesthetics is also inadequate, is not suitable for wearing in daily life.
Summary of the invention
The object of the invention is to propose a kind of breathing mask being applicable to highly polluted weather; it adopts specific expiration and air suction structure; under the prerequisite realizing filtering function; catalysis can also be carried out to air; by the harmful substance in air; such as nitrogen oxide, oxycarbide, organic odor contamination such as benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, methacrylaldehyde etc.; carry out decomposing, being oxidized or/and adsorb; bactericidal purifying is carried out to air; guarantee filtered air is clean, protects the healthy of operator.
An object of the present invention is also to provide a kind of breathing mask, while the respiratory system of protection wearer, can protect eyes and the skin of face of wearer.
For reaching this object, the present invention by the following technical solutions:
Be applicable to a breathing mask for highly polluted weather, comprise the mask bodies covered by knitted fabric, described face shield comprises: filter core connecting hole, and filter core is connected with described filter core connecting hole; Lens opening, lens are arranged in described lens opening; Steam vent, the exhaust unit for discharging inner air is installed to described steam vent; And hook, be set to rearward projection, described mask is worn on the face of user to protect face not by the infringement of noxious material, and described filter core, according to the flow direction of air, is successively provided with the first adsorption element, catalytic member and the second adsorption element.
Described first adsorption element is provided with fibrous filter layer, and described fibrous filter layer is superimposed with paper fiber thing filter course and ultra-fine fibre glass thing filter course.
Described catalytic member is provided with catalyst layer, and described catalyst comprises following component,
A) nano-TiO of 6%-20%
2the platinum cerium silver kalium composite oxides of load, the mol ratio Ti:Pt:Ce:Ag:K of its each component is 1:(0.05-0.1): (0.05-0.1): (0.05-0.1): (0.05-0.1);
B) the ferrotitanium molybdenum vanadium oxides composite of the zirconium doping of 3%-8%, the mol ratio of Zr:Fe:Ti:Mo:V is (0.02-0.2): 1:(0.5-1): (0.5-1): (0.5-1), described ferrotitanium molybdenum composite oxides possess the composite oxides crystallite system of Fe-O-Ti, Mo-O-Ti and Fe-O-Mo structure;
C) ZSM-5 molecular sieve of surplus.
Described second adsorption element is provided with adsorption layer, and described adsorption layer is made up of the nano titanium oxide of active carbon and Ag-bearing, and its mixing quality such as, than being 5:1-2:1,4.5:1,4:1,3.5:1,3:1 etc.
Breathing mask of the present invention is placed in the mouth and nose of wearer, the air sucked enters the first adsorption element, in the first adsorption element, successively through the filtration of paper fiber layer and ultra-fine fibre glass layer, the particle in air and macromolecular substances are filtered.
Air after filtering enters catalytic member subsequently, and in catalytic member, the organic pollution in air, such as formaldehyde etc., catalyzed oxidation, becomes harmless or be easy to other organic matters of absorbing.
Air after catalysis, enters the second adsorption element.In air, the organic pollution of catalyzed oxidation is absorbed by active carbon, and is distributed in the silver in active carbon, kills virus to the microorganism in air, thus reduces the content of bacterium.Thus the protection achieved wearer's respiratory system.
The breathing mask of applicable high pollution weather of the present invention adopts the mask of knitted fabric covering, mask bodies adopts rubber, silica gel, flexible PVC, TPU or PU polyurethane, TPE or TPR elastomeric material, the material of described main body is soft so and possess elasticity, compare with the face of wearer and agree with, can not produce and wear space thus the generation causing the situations such as gas leakage.Described mask bodies adopts knitted fabric to cover, and can promote the comfort level of wearer on the one hand, can increase aesthetics on the other hand.
Face shield of the present invention possesses lens, and described lens the eyes of available protecting wearer can can't affect sight line.
Filter core of the present invention is according to the flow direction of air, successively be provided with the first adsorption element, catalytic member and the second adsorption element, filter core is by choosing specific components A and B component, this catalyst is made to produce cooperative effect, can, when haze PM2.5 reaches more than 1000, this breathing mask be still made significantly to drop to 0 to haze PM2.5 in air.Simultaneously, catalyst activity of the present invention is high, catalytic action can be played under room temperature, the organic matter degradations such as the formaldehyde in air, benzene are called carbon dioxide, and be higher valence state by harmful oxysulfide, nitrogen oxide catalytic oxidation, and then with charcoal absorption, various pollutant is reduced to ppm level.The removal of benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, methacrylaldehyde reaches less than 0.01 milligram/cubic metre, significantly reduces the content of microorganisms in circulating air simultaneously.
Detailed description of the invention
The present invention is described breathing mask of the present invention by following embodiment.
Embodiment 1
Be applicable to a breathing mask for highly polluted weather, comprise the mask bodies covered by knitted fabric, described face shield comprises: filter core connecting hole, and filter core is connected with described filter core connecting hole; Lens opening, lens are arranged in described lens opening; Steam vent, the exhaust unit for discharging inner air is installed to described steam vent; And hook, be set to rearward projection, described mask is worn on the face of user to protect face not by the infringement of noxious material, and described filter core, according to the flow direction of air, is successively provided with the first adsorption element, catalytic member and the second adsorption element.
Described first adsorption element is provided with fibrous filter layer, and described fibrous filter layer sequencing is superimposed with paper fiber thing filter course and ultra-fine fibre glass thing filter course.
Described catalytic member is provided with catalyst layer, prepares catalyst by infusion process, comprises following component,
A) nano-TiO of 9%
2the platinum cerium silver kalium composite oxides of load, the mol ratio Ti:Pt:Ce:Ag:K of its each component is 1:0.1:0.1:0.1:0.1;
B) 6% zirconium doping ferrotitanium molybdenum vanadium oxides composite, the mol ratio of Zr:Fe:Ti:Mo:V is 0.05:1:1:1:1, and described ferrotitanium molybdenum composite oxides possess the composite oxides crystallite system of Fe-O-Ti, Mo-O-Ti and Fe-O-Mo structure;
C) ZSM-5 molecular sieve of surplus.
Described second adsorption layer is made up of the nano titanium oxide of active carbon and Ag-bearing, and its mixing quality is than being 3:1.
For testing its purification function, passing into haze PM2.5 index is the air of 1400, and makes the benzene,toluene,xylene of gas, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein reach 10 milligrams/cubic metre, and dust content is medium.By described gas by breathing mask of the present invention, its haze PM2.5 index decreased is 0, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein reach less than 0.01 milligram/cubic metre.
Comparative example 1
Component A content 15%, not containing B component, all the other conditions are constant, and its PM2.5 value is 40, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 2
B component content 15%, not containing component A, all the other conditions are constant, and its PM2.5 value is 39, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Comparative example 3
The ZSM-5 molecular sieve of component C is replaced with alundum (Al2O3), and all the other conditions are constant, and its PM2.5 value is 47, and benzene,toluene,xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, level of acrolein are more than 0.1 milligram/cubic metre.
Above-described embodiment and comparative example explanation, specific contact is there is between several component of canister of breathing mask of the present invention and between catalyst carrier, 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 the catalyst of breathing mask of the present invention and employing by above-described embodiment, but the present invention is not limited to above-mentioned catalyst, does not namely mean that the present invention must rely on above-mentioned detailed catalysts and could implement.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 (1)
1. be applicable to a breathing mask for highly polluted weather, comprise the mask bodies covered by knitted fabric, described face shield comprises: filter core connecting hole, and filter core is connected with described filter core connecting hole; Lens opening, lens are arranged in described lens opening; Steam vent, the exhaust unit for discharging inner air is installed to described steam vent; And hook, be set to rearward projection, described mask is worn on the face of user to protect face not by the infringement of noxious material, and described filter core, according to the flow direction of air, is successively provided with the first adsorption element, catalytic member and the second adsorption element;
Described first adsorption element is provided with fibrous filter layer, and described fibrous filter layer is superimposed with paper fiber thing filter course and ultra-fine fibre glass thing filter course;
Described catalytic member is provided with catalyst layer, and described catalyst comprises following component,
A) nano-TiO of 6%-20%
2the platinum cerium silver kalium composite oxides of load, the mol ratio Ti:Pt:Ce:Ag:K of its each component is 1:(0.05-0.1): (0.05-0.1): (0.05-0.1): (0.05-0.1);
B) the ferrotitanium molybdenum vanadium oxides composite of the zirconium doping of 3%-8%, the mol ratio of Zr:Fe:Ti:Mo:V is (0.02-0.2): 1:(0.5-1): (0.5-1): (0.5-1), described ferrotitanium molybdenum composite oxides possess the composite oxides crystallite system of Fe-O-Ti, Mo-O-Ti and Fe-O-Mo structure;
C) ZSM-5 molecular sieve of surplus;
Described second adsorption filtration adsorption element is provided with adsorption layer, and described adsorption layer is made up of the nano titanium oxide of active carbon and Ag-bearing, and its mixing quality is than being 5:1-2:1.
Priority Applications (1)
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CN201510780910.0A CN105214237A (en) | 2015-11-13 | 2015-11-13 | A kind of breathing mask of applicable high pollution weather |
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CN201510780910.0A CN105214237A (en) | 2015-11-13 | 2015-11-13 | A kind of breathing mask of applicable high pollution weather |
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CN105214237A true CN105214237A (en) | 2016-01-06 |
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CA2196615A1 (en) * | 1997-02-03 | 1998-08-03 | Francis Alan Kennedy | Air filtering cell |
CN2303649Y (en) * | 1997-04-10 | 1999-01-13 | 山西新华化工厂 | Life escaping mask for fire-fighting |
US20070084468A1 (en) * | 2005-10-18 | 2007-04-19 | Schafer Ryan S | MO O2 Mask |
CN201248380Y (en) * | 2008-05-09 | 2009-06-03 | 东莞市宇洁新材料有限公司 | Mask for proofing dust haze and ozone |
CN101979112A (en) * | 2010-11-22 | 2011-02-23 | 吉林大学 | Hidden broad-spectrum respiration purifier |
CA2776031A1 (en) * | 2009-09-30 | 2011-04-07 | Nbc Meshtec, Inc. | Mask |
CN102665457A (en) * | 2009-11-11 | 2012-09-12 | R·J·雷诺兹烟草公司 | Filter element comprising smoke-altering material |
CN103418093A (en) * | 2013-09-01 | 2013-12-04 | 王文姣 | Dust mask for mine safety |
CN104837429A (en) * | 2012-11-22 | 2015-08-12 | 株式会社山凊 | Gas mask |
CN204708043U (en) * | 2015-05-23 | 2015-10-21 | 河南亚都实业有限公司 | A kind of medical mask |
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2015
- 2015-11-13 CN CN201510780910.0A patent/CN105214237A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
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CA2196615A1 (en) * | 1997-02-03 | 1998-08-03 | Francis Alan Kennedy | Air filtering cell |
CN2303649Y (en) * | 1997-04-10 | 1999-01-13 | 山西新华化工厂 | Life escaping mask for fire-fighting |
US20070084468A1 (en) * | 2005-10-18 | 2007-04-19 | Schafer Ryan S | MO O2 Mask |
CN201248380Y (en) * | 2008-05-09 | 2009-06-03 | 东莞市宇洁新材料有限公司 | Mask for proofing dust haze and ozone |
CA2776031A1 (en) * | 2009-09-30 | 2011-04-07 | Nbc Meshtec, Inc. | Mask |
CN102665457A (en) * | 2009-11-11 | 2012-09-12 | R·J·雷诺兹烟草公司 | Filter element comprising smoke-altering material |
CN101979112A (en) * | 2010-11-22 | 2011-02-23 | 吉林大学 | Hidden broad-spectrum respiration purifier |
CN104837429A (en) * | 2012-11-22 | 2015-08-12 | 株式会社山凊 | Gas mask |
CN103418093A (en) * | 2013-09-01 | 2013-12-04 | 王文姣 | Dust mask for mine safety |
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CN204708043U (en) * | 2015-05-23 | 2015-10-21 | 河南亚都实业有限公司 | A kind of medical mask |
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