CN111111038A - Convenient double-air valve double-channel deep gas mask - Google Patents
Convenient double-air valve double-channel deep gas mask Download PDFInfo
- Publication number
- CN111111038A CN111111038A CN202010156725.5A CN202010156725A CN111111038A CN 111111038 A CN111111038 A CN 111111038A CN 202010156725 A CN202010156725 A CN 202010156725A CN 111111038 A CN111111038 A CN 111111038A
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- Prior art keywords
- valve
- dual
- exhalation
- box
- suction
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- Pending
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 230000009977 dual effect Effects 0.000 claims abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 229920000742 Cotton Polymers 0.000 claims description 14
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000000645 desinfectant Substances 0.000 claims 1
- 239000003205 fragrance Substances 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 37
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 230000003434 inspiratory effect Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 241000700605 Viruses Species 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000013355 food flavoring agent Nutrition 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004750 melt-blown nonwoven Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
- A62B18/025—Halfmasks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/06—Mouthpieces; Nose-clips
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
本发明提供便捷双气阀双通道深度防毒口罩，主要涉及口罩领域。便捷双气阀双通道深度防毒口罩，包括透明防护罩本体，所述防护罩本体上设置呼气阀与吸气阀，所述呼气阀为外开式单向阀，所述吸气阀为内开式单向阀，所述吸气阀外侧可拆卸连接吸气管，所述吸气管远离吸气阀一端可拆卸连接吸气盒，所述吸气盒内设置吸气过滤层。本发明的有益效果在于：本发明通过双通道的设置方式使呼吸与吸气采用不同通道，减少呼出气体在口罩内的存留量，提高呼吸效率。且将主要过滤部件外置，对呼吸气流进行缓冲，减少了口罩边缘的漏风现象，提高防护效果。
The invention provides a convenient double-air valve and double-channel deep gas mask, which mainly relates to the field of masks. The convenient dual-air valve dual-channel depth gas mask includes a transparent protective cover body, an exhalation valve and an inhalation valve are arranged on the protective cover body, the exhalation valve is an outward-opening one-way valve, and the inhalation valve is An inward-opening one-way valve, the outside of the suction valve is detachably connected to a suction pipe, and one end of the suction pipe away from the suction valve is detachably connected to a suction box, and a suction filter layer is arranged in the suction box. The beneficial effects of the present invention are: the present invention adopts different channels for breathing and inhalation through the arrangement of dual channels, reduces the amount of exhaled gas remaining in the mask, and improves breathing efficiency. In addition, the main filter components are placed outside to buffer the breathing airflow, which reduces the air leakage phenomenon at the edge of the mask and improves the protection effect.
Description
Technical Field
The invention mainly relates to the field of protective equipment, in particular to a convenient double-air valve and double-channel deep gas mask.
Background
The human body exchanges substances with the outside every moment, the exchange quantity is the largest and most frequent, the respiratory system, and the spread of the infection of bacterial and viral diseases is mainly caused by the spread of bacteria and viruses along with the inhalation and exhalation of air flow by mouth and nose. The mask is an important measure for keeping the input and output of germs and viruses closed. The traditional mask is restricted by various factors, and the perfect degree cannot be achieved, for example, the ventilation is affected by the over-thickness of the mask, air is easy to leak at the edge of the mask during breathing, and the sufficient protection effect cannot be achieved; and the mask is too thin and cannot have the protection effect. When the existing mask is used, the exhalation and the inhalation are both in the area of the mask and the mouth-nose cage, and the exhaled foul smell cannot be completely discharged due to the isolation effect of the mask on the gas, so that the breathing efficiency of people is reduced, and the breathing is not smooth. The mask body is only of an opaque design because of the filter layer.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the convenient double-air valve double-channel deep gas mask, which adopts different channels for breathing and inhaling through a double-channel arrangement mode, reduces the retention amount of exhaled gas in the mask and improves the breathing efficiency. And the main filtering component is arranged externally to buffer the respiratory airflow, and the design of the soft plastic protective cover body reduces the air leakage phenomenon at the edge of the mask and improves the protective effect.
In order to achieve the purpose, the invention is realized by the following technical scheme:
convenient two pneumatic valve binary channels degree of depth gas mask, including the protection casing body, set up expiratory valve and inspiratory valve on the protection casing body, the expiratory valve is the outward opening check valve, the inspiratory valve is the inward opening check valve, the connection breathing pipe can be dismantled in the inspiratory valve outside, the breathing pipe is kept away from inspiratory valve one end and can be dismantled the connection box of breathing in, set up the filter layer of breathing in the box of breathing in.
This device is through the setting of expiratory valve and inspiratory valve, and the inspiratory valve is opened when breathing in, inhales the filterable air of box of breathing in through the breathing pipe, has done the buffering for the action of breathing in, and the expiratory valve is opened during expiration, and the gas that will mouthful nose exhale discharges, reduces the pressure in the gauze mask, protection casing body edge mountable soft rubber, silica gel material to laminate mutually with human facial profile, thereby avoid the phenomenon of gauze mask edge gas leakage, accomplish the protective effect better. Through the double-channel mode, the exhalation and the inhalation are not interfered with each other, so that the secondary inhalation of the exhaled gas can be reduced, and the breathing efficiency is improved.
The air suction filter layer is a filter cotton layer and/or an activated carbon layer.
The filter cotton layer adopts high-efficient static filter cotton and melt-blown non-woven fabrics, and the active carbon layer adopts activated carbon fiber cloth or carbon powder granule cartridge filter, filters effectively along with droplet, the bacterial virus of dust propagation in the air.
And a flavoring agent is added into the air suction box.
The flavoring agent can improve comfort during inhalation, thereby providing physical and mental pleasure.
The outer side of the expiratory valve is detachably connected with an expiratory tube, one end, far away from the expiratory valve, of the expiratory tube is detachably connected with an expiratory box, and an expiratory filter layer is arranged in the expiratory box.
The breathing box can filter the gas exhaled by the patient, so that the gas exhaled by the patient is prevented from carrying bacteria and viruses to pollute the air and causing cross infection to other people.
The expiration filtering layer is a filter cotton and/or an active carbon layer and/or a disinfection liquid layer.
The filter cotton layer and the active carbon layer are consistent with the inhalation box, and the disinfection liquid layer can be formed by directly introducing the exhalation tube into the disinfection liquid or adding the filter cotton soaked by the disinfection liquid into the inhalation box.
The breathing box and the breathing box are fixed in parallel, and the side surfaces of the breathing box and the breathing box are provided with fixing buckles.
The breathing box and the inspiration box are integrally installed and can be conveniently carried, the breathing box and the inspiration box can be carried about, and when the device is matched with a protective cap for use, the breathing box and the inspiration box can also be arranged at the head part, so that the centralized processing is convenient.
And the expiration pipe is connected with a pipeline type exhaust fan in series.
And the air suction pipe is connected with a pipeline type suction fan in series.
The exhaust fan and the suction fan both play a role in promoting the flow of air flow, thereby saving the breathing and inspiration force of people and promoting the breathing efficiency.
The protection casing body is transparent 3D gauze mask, protective mask or gas mask.
The protective cover can be any equipment for protecting mouth and nose, and when the protective cover is a mask, a three-dimensional mask is suitable.
The protection casing body is the 3D gauze mask of stereoplasm transparent material.
The 3D gauze mask of stereoplasm transparent material can not warp because of exhaling with breathing in when using, can avoid with the production in the regional gap of face's laminating, ensures good safeguard effect.
Drawings
FIG. 1 is a partial sectional structural view of embodiment 2 of the present invention.
Reference numerals shown in the drawings: 1. a protective cover body; 2. an exhalation valve; 3. an air intake valve; 4. an air intake duct; 5. an air suction box; 6. a suction filter layer; 7. an exhalation tube; 8. an exhalation cartridge; 9. an exhalation filter layer; 10. a duct-type exhaust fan; 11. pipeline formula suction fan.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Example 1:
this embodiment convenient two pneumatic valve binary channels degree of depth gas mask, including protection casing body 1, protection casing body 1 is transparent, stereoplasm material 3D gauze mask, protective mask or gas mask. In this embodiment, the protection cover body is a transparent and hard 3D mask made of transparent and hard medical plastics. Transparent 3D gauze mask includes cover body part and fixed band, cover body and face laminating position cementing silica gel pad, guarantees with the laminating effect of human facial profile, the fixed band is fixed and is used as wearing on the cover body, install expiratory valve 2 and inspiratory valve 3 on the 3D gauze mask, expiratory valve and inspiratory valve are plastic housing, and it is fixed through hot pressing or cementation technology with cover body part. The exhalation valve 2 is an outward opening one-way valve, the inhalation valve 3 is an inward opening one-way valve, the one-way valve is a rubber baffle sheet which is elastically connected, when a person inhales, the air pressure inside and outside the inhalation valve changes, the inhalation valve is opened inwards under the action of the air pressure, and the exhalation valve is blocked and cannot be opened, so that the inhalation action is realized. And the actions of the inhalation valve and the exhalation valve are opposite during exhalation, so that the exhalation action is completed. The outer side of the air suction valve 3 can be connected with an air suction pipe 4 through a joint thread, and the air suction pipe is a soft pipeline made of plastic, rubber and the like. One end of the air suction pipe 4, far away from the air suction valve 3, is connected with an air suction box 5 through a joint thread, and an air suction filter layer 6 is arranged in the air suction box 5. The two ends of the air suction box are communicated, the air suction filter layer is positioned through the inner step of the air suction box, and the end cover with the air hole at the bottom of the air suction box is screwed and fixed with the inner wall of the air suction box through the thread. The air suction filter layer 6 is a filter cotton layer and/or an activated carbon layer, the filter cotton layer is formed by combining high-efficiency electrostatic filter cotton with melt-blown non-woven fabrics, and the activated carbon layer is made of activated carbon fiber cloth and filled in the air suction box in a multi-layer overlapping mode. One layer of the inner side surface of the filter layer in the air suction box can be non-woven fabric added with flavoring agents.
Example 2:
aiming at the embodiment 1, the outer side of the expiratory valve 2 can be connected with an expiratory tube 7 through a connector thread in the embodiment, one end, far away from the expiratory valve 2, of the expiratory tube 7 is connected with an expiratory box 8 through the connector thread, and an expiratory filter layer 9 is arranged in the expiratory box 8. The expiration filter layer 9 is a filter cotton and/or an activated carbon layer and/or a disinfection liquid layer, and in this embodiment, a combination form of the filter cotton and the activated carbon layer is adopted, which is consistent with the structure of the filter cotton and the activated carbon layer in embodiment 1. The breathing box 8 and the breathing box 5 are fixed in parallel, the side surfaces of the breathing box 8 and the breathing box 5 are respectively provided with a fixing buckle, the breathing box and the breathing box can be fixed at the waist, the chest and the like through the buckles, and the breathing box can also be made into a protective cap to be arranged at the top of the head.
Example 3:
when the protective cover body is the gas mask, the exhalation box and the inhalation box can be made into a head-wearing type and arranged at the top of the gas mask, thereby avoiding the interference of the exhalation tube and the inhalation tube.
Example 4:
aiming at any one of the embodiments 1 to 3, in this embodiment, the serial pipeline type exhaust fan 10 can be detached from the exhalation pipe 7, the serial pipeline type suction fan 11 can be detached from the inhalation pipe 4, the pipeline type exhaust fan and the pipeline type suction fan are both powered by a mobile power supply, and the mobile power supply and the inhalation box can be detached and fixedly mounted.
Example 5:
in the embodiment 1 to 4, the inhalation tube can be detached from the inhalation box and connected to a breathing apparatus such as an oxygen generator.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010156725.5A CN111111038A (en) | 2020-03-09 | 2020-03-09 | Convenient double-air valve double-channel deep gas mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010156725.5A CN111111038A (en) | 2020-03-09 | 2020-03-09 | Convenient double-air valve double-channel deep gas mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111111038A true CN111111038A (en) | 2020-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010156725.5A Pending CN111111038A (en) | 2020-03-09 | 2020-03-09 | Convenient double-air valve double-channel deep gas mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111111038A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529985A (en) * | 2020-05-19 | 2020-08-14 | 财鼎科技(重庆)有限公司 | Mask with improved protection performance |
| CN111888679A (en) * | 2020-08-25 | 2020-11-06 | 李创杰 | Sterilizing device |
| CN112807572A (en) * | 2021-02-16 | 2021-05-18 | 门立山 | Electronic mask for killing virus |
| CN113576074A (en) * | 2021-07-07 | 2021-11-02 | 广东山湖集团有限公司 | Mask with bidirectional disinfection function |
| KR20220018718A (en) * | 2020-08-07 | 2022-02-15 | 정기호 | Plastic mask to prevent splash infection |
| GB2600741A (en) * | 2020-11-06 | 2022-05-11 | Silicon Cpv Plc | Air-purifying respirator cartridge |
| WO2022143600A1 (en) * | 2020-12-30 | 2022-07-07 | 上海睿正环保科技发展有限公司 | Method for separately disposing exhaled air and inhaled air, and respiratory branch channels |
| US20240042246A1 (en) * | 2020-06-10 | 2024-02-08 | Noah Lang | System to connect face masks to hepa filtration in aircraft to prevent spread of respiratory viruses |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0171551A2 (en) * | 1984-08-16 | 1986-02-19 | Dornier Gmbh | Breathing mask |
| RU1577604C (en) * | 1988-08-30 | 2000-06-10 | Государственное научно-производственное предприятие "Алмаз" | |
| RU2219962C1 (en) * | 2002-04-10 | 2003-12-27 | Общество с ограниченной ответственностью "Здоровье-детям" | Respirator device for treating hypoxia |
| CN2606607Y (en) * | 2003-04-30 | 2004-03-17 | 张洪光 | Anti-virus dust-proof smoke-proof protective cover |
| CN204697933U (en) * | 2015-03-17 | 2015-10-14 | 天津市久欣荣科技有限公司 | Active intake and exhaust haze mouth mask |
| RU157760U1 (en) * | 2014-12-04 | 2015-12-10 | Публичное акционерное общество "Донецкий завод горноспасательной аппаратуры" (ПАО "ДЗГА") | REGENERATIVE ISOLATING RESPIRATOR |
| CN206808729U (en) * | 2017-05-15 | 2017-12-29 | 浙江建设职业技术学院 | A kind of sterile haze-proof mask |
| RU185934U1 (en) * | 2018-04-25 | 2018-12-25 | Акционерное общество "АРТИ-Завод" | BREATHE-HELPING MACHINE |
| DE102018100473A1 (en) * | 2018-01-10 | 2019-07-11 | Fischer Planning Ltd. | Respiratory protection device |
| CN211863610U (en) * | 2020-03-09 | 2020-11-06 | 代福民 | Convenient dual air valve dual channel depth gas mask |
-
2020
- 2020-03-09 CN CN202010156725.5A patent/CN111111038A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0171551A2 (en) * | 1984-08-16 | 1986-02-19 | Dornier Gmbh | Breathing mask |
| RU1577604C (en) * | 1988-08-30 | 2000-06-10 | Государственное научно-производственное предприятие "Алмаз" | |
| RU2219962C1 (en) * | 2002-04-10 | 2003-12-27 | Общество с ограниченной ответственностью "Здоровье-детям" | Respirator device for treating hypoxia |
| CN2606607Y (en) * | 2003-04-30 | 2004-03-17 | 张洪光 | Anti-virus dust-proof smoke-proof protective cover |
| RU157760U1 (en) * | 2014-12-04 | 2015-12-10 | Публичное акционерное общество "Донецкий завод горноспасательной аппаратуры" (ПАО "ДЗГА") | REGENERATIVE ISOLATING RESPIRATOR |
| CN204697933U (en) * | 2015-03-17 | 2015-10-14 | 天津市久欣荣科技有限公司 | Active intake and exhaust haze mouth mask |
| CN206808729U (en) * | 2017-05-15 | 2017-12-29 | 浙江建设职业技术学院 | A kind of sterile haze-proof mask |
| DE102018100473A1 (en) * | 2018-01-10 | 2019-07-11 | Fischer Planning Ltd. | Respiratory protection device |
| RU185934U1 (en) * | 2018-04-25 | 2018-12-25 | Акционерное общество "АРТИ-Завод" | BREATHE-HELPING MACHINE |
| CN211863610U (en) * | 2020-03-09 | 2020-11-06 | 代福民 | Convenient dual air valve dual channel depth gas mask |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529985A (en) * | 2020-05-19 | 2020-08-14 | 财鼎科技(重庆)有限公司 | Mask with improved protection performance |
| US20240042246A1 (en) * | 2020-06-10 | 2024-02-08 | Noah Lang | System to connect face masks to hepa filtration in aircraft to prevent spread of respiratory viruses |
| KR20220018718A (en) * | 2020-08-07 | 2022-02-15 | 정기호 | Plastic mask to prevent splash infection |
| KR102573128B1 (en) * | 2020-08-07 | 2023-08-30 | 정기호 | Plastic mask to prevent splash infection |
| CN111888679A (en) * | 2020-08-25 | 2020-11-06 | 李创杰 | Sterilizing device |
| GB2600741A (en) * | 2020-11-06 | 2022-05-11 | Silicon Cpv Plc | Air-purifying respirator cartridge |
| GB2600741B (en) * | 2020-11-06 | 2023-02-08 | Silicon Cpv Plc | Air-purifying respirator cartridge |
| WO2022143600A1 (en) * | 2020-12-30 | 2022-07-07 | 上海睿正环保科技发展有限公司 | Method for separately disposing exhaled air and inhaled air, and respiratory branch channels |
| CN112807572A (en) * | 2021-02-16 | 2021-05-18 | 门立山 | Electronic mask for killing virus |
| CN113576074A (en) * | 2021-07-07 | 2021-11-02 | 广东山湖集团有限公司 | Mask with bidirectional disinfection function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20200508 |