CN111973901B - A kind of efficient and safe gas mask for medical staff and using method - Google Patents
A kind of efficient and safe gas mask for medical staff and using method Download PDFInfo
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- CN111973901B CN111973901B CN202010905720.8A CN202010905720A CN111973901B CN 111973901 B CN111973901 B CN 111973901B CN 202010905720 A CN202010905720 A CN 202010905720A CN 111973901 B CN111973901 B CN 111973901B
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- gas
- air inlet
- air
- air outlet
- purification sheet
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 108
- 239000000428 dust Substances 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000002341 toxic gas Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 34
- 238000000746 purification Methods 0.000 claims description 32
- 230000003373 anti-fouling effect Effects 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 4
- 230000002155 anti-virotic effect Effects 0.000 claims 1
- 238000012372 quality testing Methods 0.000 abstract description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000007123 defense Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007170 pathology Effects 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
-
- 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
- A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
-
- 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)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a high-efficiency safe gas mask for medical personnel and a using method thereof, the high-efficiency safe gas mask comprises a mask body and a left ear hanging line and a right ear hanging line, a sealing test piece is arranged at the top end of the mask body, a nose line is arranged on the sealing test piece, a control box is arranged on one side surface of the mask body, an air quality test piece is arranged on the control box, a microcomputer board is arranged in the control box, an alarm is arranged on the microcomputer board, two controllers are arranged in the mask body, an air inlet cavity and an air outlet cavity are arranged in the middle of the mask body, an air inlet cavity is arranged at one end of the air inlet cavity, and a first dust. The gas-proof mask has comprehensive functions and reasonable design, and when toxic gas is contained in the air, the air quality testing sheet can immediately detect the toxic gas and open the gas-proof function of the mask, so that the time for replacing the gas-proof mask is saved, and the personal safety of medical personnel is protected.
Description
The application has the following application numbers: 2018102471093, the name of invention creation: the utility model provides a medical personnel is with high-efficient safe gas mask, application day are: divisional application of patent application of invention on 03/23/2018.
Technical Field
The invention relates to the technical field of gas defense instruments, in particular to a high-efficiency safe gas defense mask for medical personnel and a using method thereof.
Background
It is known in the medical or medical research institutions that large amounts of formaldehyde solutions are required for specimen storage in pathology laboratories. During the specimen processing, xylene is frequently used as a clearing agent. Because these reagents are used in large quantities and frequently, the concentrations of formaldehyde and xylene in the specimen drawing chamber, the staining embedding chamber and other chambers of the pathology department are over standard. However, the medical staff in the laboratory work in the laboratory for a long time, and the medical staff can inhale toxic gas inevitably, which can cause harm to the body. Hospitals therefore wear gas masks or respirator masks for the medical staff in the laboratory.
However, respirators are heavy and lack comfort when worn. And current gas mask of preventing poison is lighter and thinner, and is poor to toxic gas filter effect in the air, and the primary structure of gauze mask is the filter core, and filter core or gauze mask use a period after, will attach a lot of pollutants on the filter core, need in time change to avoid influencing the filtering capability of gauze mask and bring harm to medical personnel's healthy, but among the correlation technique, judge the method of renew cartridge or renew the gauze mask and usually be: when the medical staff wears the mask, the breathing resistance is obviously increased, and the mask can be replaced or the mask can be replaced when breathing is difficult, or the medical staff finds that the color of the mask filter element is obviously changed, for example, the mask is changed from white to gray or black, and the filter element is replaced or the mask is replaced.
But the problems can not be found and solved in time when the mask is used by medical care personnel, the gas defense function of the mask is reduced when the mask is serious, and the health of the medical care personnel is damaged.
Disclosure of Invention
The invention aims to provide an efficient and safe gas mask for medical staff and a using method thereof, which can effectively solve the problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-efficiency safe gas mask for medical staff comprises a mask body 1, a left ear hanging wire 5, a right ear hanging wire 5 and an air quality testing piece 61, wherein a sealing testing piece 9 is arranged at the top end of the mask body 1, the upside of each end of the mask body 1 is respectively provided with an ear wire fixing node 2, the downside of each end is respectively provided with an ear wire moving node 3, an ear wire length adjusting button 4 is arranged in each ear wire moving node 3, one end of each of the left ear hanging wire 5 and the right ear hanging wire 5 is respectively fixedly arranged on the left ear wire fixing node 2 and the other end of each of the left ear wire 5 and the right ear wire 5 is movably arranged in each ear wire moving node 3, the length of each ear hanging wire 5 is adjusted by controlling the ear wire length adjusting buttons 4 on the two sides, a nose wire 10 is arranged on the sealing testing piece 9, a control box 6 is arranged on one side surface of the, two controllers 711 are arranged in the cover body 1;
the middle of the cover body 1 is provided with an air inlet cavity 7 and an air outlet cavity 8, one end of the air inlet cavity 7 is provided with an air inlet cavity 71, the other end of the air inlet cavity 7 is provided with an air inlet cavity anti-fouling pad 75, the air inlet cavity 71 is internally provided with a first dust cover 72, one end of the air outlet cavity 8 is provided with an air outlet cavity 81, the other end of the air outlet cavity 8 is provided with an air outlet cavity anti-fouling pad 84, the air outlet cavity 81 is internally provided with a second dust cover 82, the air outlet cavity 8 is internally provided with a third purifying sheet 83, the upper inner side and the lower inner side of the air inlet cavity 7 and the air outlet cavity 8 are respectively provided with a fixed node 712, the outer side of the lower end of the air inlet cavity 71 is provided with a fixed node 712, the outer side of the upper end of the air inlet cavity anti-fouling pad 75 are respectively connected with the air inlet cavity 7 through, a fixed node 712 is arranged on the outer side of the upper end of the air outlet cavity anti-pollution pad 84, and the air outlet cavity 81 and the air outlet cavity anti-pollution pad 84 are respectively connected with the air outlet cavity 8 through the fixed node 712;
the air inlet cavity 71, the air inlet cavity antifouling pad 75, the air outlet cavity 81 and the air outlet cavity antifouling pad 84 are all provided with rubber sleeves 713, and the rubber sleeves 713 are respectively and tightly jointed with the air inlet cavity 7 and the air outlet cavity 8 to form a closed space of the air inlet cavity 7 and the air outlet cavity 8;
a first purifying sheet 73 and a second purifying sheet 74 are arranged in the air inlet chamber 7, two first gas detection blocks 76 are arranged at the upper end of the first purifying sheet 73, two second gas detection blocks 77 are arranged at the upper end of the second purifying sheet 74, and two third gas detection blocks 78 are arranged at the lower end of the second purifying sheet 74;
the two ends of the first purifying sheet 73 and the second purifying sheet 74 are respectively connected with two controllers 711 through purifying sheet control lines 710, and the two first gas detecting blocks 76, the two second gas detecting blocks 77 and the two third gas detecting blocks 78 are respectively connected with the two controllers 711 through detecting block control lines 79;
the first purifying sheet 73, the second purifying sheet 74 and the third purifying sheet 83 are provided with air check valve ports 714 which are uniformly distributed, the air check valve ports 714 are provided with two valve plates 715, each valve plate 715 is connected with the purifying sheet through a flexible pressure spring 716, and the maximum angle of the flexible pressure spring 716 is 60 degrees.
The cover body 1 is provided with double-layer pressing lines around.
The air quality test piece 61 and the microcomputer board 62, and the two controllers 711 and the microcomputer board 62 are connected in a control mode through a control wire box 63.
The invention has the beneficial effects that: the ear line movable node can be applied to medical staff with different physiques, the length of the ear line is adjusted to enable the medical staff to use the ear line comfortably, when the medical staff works, if the air does not contain toxic gas, the ear line movable node is used like a common mask, when the air contains the toxic gas, the air quality testing sheet can immediately detect the toxic gas, the gas defense function of the mask is started, and the time for replacing the gas defense mask is saved.
The gas breathing mask uses different chambers for gas breathing and gas breathing, when the gas breathing is carried out, the gas quality detection of three layers is carried out, so that medical personnel can suck pure gas, and if the gas is still unqualified after the gas quality detection of three layers, the alarm can give an alarm to remind the medical personnel to withdraw to a safe area and replace the purification sheet.
Therefore, when the medical staff is used, the problems can be found and solved in time, and the personal safety of the medical staff is protected.
Drawings
FIG. 1 is a perspective view of the structure of the present invention.
FIG. 2 is a schematic view of the structure of the present invention when in use.
FIG. 3 is a schematic cross-sectional view of the control box of the present invention.
FIG. 4 is a schematic sectional view of an intake chamber according to the present invention.
FIG. 5 is a schematic view of a partial cross-sectional structure of an intake chamber according to the present invention.
FIG. 6 is a schematic sectional view of the outlet chamber according to the present invention.
FIG. 7 is a schematic view of a partial cross-sectional structure of an outlet chamber according to the present invention.
FIG. 8 is a schematic cross-sectional view of a purification sheet according to the present invention.
FIG. 9 is a schematic sectional view of the anti-reverse valve of the present invention.
FIG. 10 is a schematic cross-sectional view of the valve plate of the present invention.
Fig. 11 is a frame diagram of the basic working principle of the air inlet chamber of the present invention.
Detailed Description
The present invention is described in detail below with reference to fig. 1-11.
As shown in fig. 1-11, a high-efficiency safety gas mask for medical staff comprises a mask body 1, a left ear-hanging wire 5 and a right ear-hanging wire 5, and an air quality testing piece 61, wherein a sealing testing piece 9 is arranged at the top end of the mask body 1, the upper sides of the two ends of the mask body 1 are respectively provided with an ear-hanging fixed node 2, the lower sides of the two ends are respectively provided with an ear-hanging movable node 3, an ear-hanging length adjusting button 4 is arranged in the ear-hanging movable node 3, one end of each of the left and right ear-hanging wires 5 is respectively fixed on the left and right ear-hanging fixed nodes 2, the other end is movably arranged in the ear-hanging movable node 3, the length of the ear-hanging wire 5 is adjusted by controlling the ear-hanging length adjusting buttons 4 on the two sides, a nose-hanging wire 10 is arranged on the sealing testing piece 9, a control box 6 is arranged on one side surface, two controllers 711 are arranged in the cover body 1.
The middle of the cover body 1 is provided with an air inlet cavity 7 and an air outlet cavity 8, one end of the air inlet cavity 7 is provided with an air inlet cavity 71, the other end of the air inlet cavity 7 is provided with an air inlet cavity anti-fouling pad 75, the air inlet cavity 71 is internally provided with a first dust cover 72, one end of the air outlet cavity 8 is provided with an air outlet cavity 81, the other end of the air outlet cavity 8 is provided with an air outlet cavity anti-fouling pad 84, the air outlet cavity 81 is internally provided with a second dust cover 82, the air outlet cavity 8 is internally provided with a third purifying sheet 83, the upper inner side and the lower inner side of the air inlet cavity 7 and the air outlet cavity 8 are respectively provided with a fixed node 712, the outer side of the lower end of the air inlet cavity 71 is provided with a fixed node 712, the outer side of the upper end of the air inlet cavity anti-fouling pad 75 are respectively connected with the air inlet cavity 7 through, the outer side of the upper end of the air outlet cavity anti-pollution pad 84 is provided with a fixed node 712, and the air outlet cavity 81 and the air outlet cavity anti-pollution pad 84 are respectively connected with the air outlet cavity 8 through the fixed node 712.
The air inlet cavity 71, the air inlet cavity anti-fouling pad 75, the air outlet cavity 81 and the air outlet cavity anti-fouling pad 84 are all provided with rubber sleeves 713, and the rubber sleeves 713 are respectively and tightly connected with the air inlet cavity 7 and the air outlet cavity 8 to form a closed space of the air inlet cavity 7 and the air outlet cavity 8.
A first purifying sheet 73 and a second purifying sheet 74 are arranged in the air inlet chamber 7, two first gas detection blocks 76 are arranged at the upper end of the first purifying sheet 73, two second gas detection blocks 77 are arranged at the upper end of the second purifying sheet 74, and two third gas detection blocks 78 are arranged at the lower end of the second purifying sheet 74.
The two ends of the first purifying sheet 73 and the second purifying sheet 74 are respectively connected with the two controllers 711 through purifying sheet control conduits 710, and the two first gas detecting blocks 76, the two second gas detecting blocks 77 and the two third gas detecting blocks 78 are respectively connected with the two controllers 711 through detecting block control conduits 79.
The first purifying sheet 73, the second purifying sheet 74 and the third purifying sheet 83 are provided with air check valve ports 714 which are uniformly distributed, the air check valve ports 714 are provided with two valve plates 715, each valve plate 715 is connected with the purifying sheet through a flexible pressure spring 716, and the maximum angle of the flexible pressure spring 716 is 60 degrees.
The cover body 1 is provided with double-layer pressing lines around.
The air quality test piece 61 and the microcomputer board 62, and the two controllers 711 and the microcomputer board 62 are connected in a control mode through a control wire box 63.
According to medical personnel's physique before medical personnel uses, press ear wire length adjustment button 4 and adjust the length of ear wire, adjust to suitable length, press nose wire 10 and adjust gas mask, make gauze mask and medical personnel's facial lines laminating, medical personnel's a long breath of breathing out, observe whether there is gas leakage in sealed test piece 9 department, if no gas leakage, the representative gas mask has worn. If gas leaks, the pressing nose line 10 needs to be adjusted again to adjust the gas mask until no gas leaks at the position of the sealing test piece 9.
When the medical staff works, if the air has no toxic gas, the mask is used as a common mask, when the air contains the toxic gas, the air quality testing sheet 61 can immediately detect the toxic gas, the microcomputer board 62 is started to operate, the controller 711 is operated by controlling the wire box 63, the controller 711 firstly starts the detection function of the first gas detection block 76 to detect the gas sucked into the air inlet chamber 7, if the first gas detection block 76 detects that the gas is qualified, the gas enters the mask body 1 through the anti-backflow gas valve ports 714 opened on the first purification sheet 73 and the second purification sheet 74 to be used by the medical staff, if the first gas detection block 76 detects that the gas is unqualified, the two valve plates 715 on the first purification sheet 73 are closed, the first purification sheet 73 purifies the gas, the second gas detection block 77 detects the purified gas, and if the second gas detection block 77 detects that the gas is qualified, the gas enters the cover body 1 through the gas check valve 714 opened on the second purifying sheet 74 and is used by medical personnel, if the second gas detecting block 77 detects that the gas is unqualified, the two valve sheets 715 on the second purifying sheet 74 are closed, the second purifying sheet 74 purifies the gas, the third gas detecting block 78 detects the gas purified again, if the third gas detecting block 78 detects that the gas is qualified, the gas enters the cover body 1 through the gas inlet cavity anti-fouling pad 75 and is used by the medical personnel, if the third gas detecting block 78 detects that the gas is unqualified, the first purifying sheet 73 and the second purifying sheet 74 are required to be replaced, the alarm 64 gives an alarm to remind the medical personnel to withdraw to a safe area and replace the purifying sheet.
When the medical staff exhales, the generated hot air can be absorbed by the air outlet cavity anti-fouling pad 84, and the air is exhaled through the third purifying sheet 83.
The first dust cover 72 on the air inlet cavity 71 and the second dust cover 82 on the air outlet cavity 81 isolate dust in the air and prevent the dust from entering the cover body 1.
After the gas mask is used for a period of time, a plurality of pollutants are attached to the first dust cover 72 and the second dust cover 82, the first dust cover 72 and the second dust cover 82 need to be taken down for cleaning, the gas inlet cavity 71 and the gas outlet cavity 81 are taken down in a rotating mode relative to the gas inlet cavity 7 and the gas outlet cavity 8, and the first dust cover 72 and the second dust cover 82 are taken out for cleaning.
After the gas mask is used for a period of time, the air inlet cavity antifouling pad 75 and the air outlet cavity antifouling pad 84 need to be replaced in time, whether pollutants exist on the air inlet cavity antifouling pad 75 and the air outlet cavity antifouling pad 84 is observed, if pollutants need to be replaced, the air inlet cavity 7 and the air outlet cavity 8 are relatively arranged, and the air inlet cavity antifouling pad 75 and the air outlet cavity antifouling pad 84 are rotationally taken down for replacement.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Moreover, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments in each embodiment may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905720.8A CN111973901B (en) | 2018-03-23 | 2018-03-23 | A kind of efficient and safe gas mask for medical staff and using method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905720.8A CN111973901B (en) | 2018-03-23 | 2018-03-23 | A kind of efficient and safe gas mask for medical staff and using method |
| CN201810247109.3A CN108392755B (en) | 2018-03-23 | 2018-03-23 | Efficient safe gas mask for medical personnel |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810247109.3A Division CN108392755B (en) | 2018-03-23 | 2018-03-23 | Efficient safe gas mask for medical personnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111973901A CN111973901A (en) | 2020-11-24 |
| CN111973901B true CN111973901B (en) | 2021-06-29 |
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ID=63093096
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810247109.3A Active CN108392755B (en) | 2018-03-23 | 2018-03-23 | Efficient safe gas mask for medical personnel |
| CN202010905720.8A Expired - Fee Related CN111973901B (en) | 2018-03-23 | 2018-03-23 | A kind of efficient and safe gas mask for medical staff and using method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810247109.3A Active CN108392755B (en) | 2018-03-23 | 2018-03-23 | Efficient safe gas mask for medical personnel |
Country Status (1)
| Country | Link |
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| CN (2) | CN108392755B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392755B (en) * | 2018-03-23 | 2020-10-30 | 南通汇优洁医用材料有限公司 | Efficient safe gas mask for medical personnel |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361146A (en) * | 1979-09-21 | 1982-11-30 | Auergesellschaft Gmbh | Filtering respirator |
| CN104432707A (en) * | 2014-12-18 | 2015-03-25 | 山东大学 | Mask with service life prompt function |
| CN104548405A (en) * | 2014-12-18 | 2015-04-29 | 百度在线网络技术（北京）有限公司 | Mask comprising air quality detection device and processing device |
| CN106139442A (en) * | 2015-03-27 | 2016-11-23 | 阳运崎 | Pouch-type multipurpose filtration package mask and mask filter |
| WO2017107950A1 (en) * | 2015-12-24 | 2017-06-29 | 佛山市恒洁卫浴有限公司 | Double-layer direct-discharging respirator |
| CA3021528A1 (en) * | 2016-04-21 | 2017-10-26 | O&M Halyard International Unlimited Company | Face mask having improved comfort through cooling of microclimate through use of a phase change material |
| CN206626741U (en) * | 2017-04-10 | 2017-11-10 | 戴保 | New blower fan and VMC |
| CN206836310U (en) * | 2017-06-27 | 2018-01-05 | 深圳市航达威电子科技有限公司 | A kind of novel intelligent air monitering mouth mask |
| KR101826466B1 (en) * | 2017-03-08 | 2018-02-07 | 신동진 | Mask capable of intake and exhalation air filtering |
| CN207101663U (en) * | 2017-08-15 | 2018-03-16 | 无锡市第五人民医院 | A kind of infectious disease inspection protector |
| CN108392755B (en) * | 2018-03-23 | 2020-10-30 | 南通汇优洁医用材料有限公司 | Efficient safe gas mask for medical personnel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204864599U (en) * | 2015-07-30 | 2015-12-16 | 中国人民解放军白求恩医务士官学校 | Electronic anti -poison respirator of early warning formula |
-
2018
- 2018-03-23 CN CN201810247109.3A patent/CN108392755B/en active Active
- 2018-03-23 CN CN202010905720.8A patent/CN111973901B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361146A (en) * | 1979-09-21 | 1982-11-30 | Auergesellschaft Gmbh | Filtering respirator |
| CN104432707A (en) * | 2014-12-18 | 2015-03-25 | 山东大学 | Mask with service life prompt function |
| CN104548405A (en) * | 2014-12-18 | 2015-04-29 | 百度在线网络技术（北京）有限公司 | Mask comprising air quality detection device and processing device |
| CN106139442A (en) * | 2015-03-27 | 2016-11-23 | 阳运崎 | Pouch-type multipurpose filtration package mask and mask filter |
| WO2017107950A1 (en) * | 2015-12-24 | 2017-06-29 | 佛山市恒洁卫浴有限公司 | Double-layer direct-discharging respirator |
| CA3021528A1 (en) * | 2016-04-21 | 2017-10-26 | O&M Halyard International Unlimited Company | Face mask having improved comfort through cooling of microclimate through use of a phase change material |
| KR101826466B1 (en) * | 2017-03-08 | 2018-02-07 | 신동진 | Mask capable of intake and exhalation air filtering |
| CN206626741U (en) * | 2017-04-10 | 2017-11-10 | 戴保 | New blower fan and VMC |
| CN206836310U (en) * | 2017-06-27 | 2018-01-05 | 深圳市航达威电子科技有限公司 | A kind of novel intelligent air monitering mouth mask |
| CN207101663U (en) * | 2017-08-15 | 2018-03-16 | 无锡市第五人民医院 | A kind of infectious disease inspection protector |
| CN108392755B (en) * | 2018-03-23 | 2020-10-30 | 南通汇优洁医用材料有限公司 | Efficient safe gas mask for medical personnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111973901A (en) | 2020-11-24 |
| CN108392755B (en) | 2020-10-30 |
| CN108392755A (en) | 2018-08-14 |
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