CN213908673U - Medical mask based on PAPR technology - Google Patents
Medical mask based on PAPR technology Download PDFInfo
- Publication number
- CN213908673U CN213908673U CN202022136210.7U CN202022136210U CN213908673U CN 213908673 U CN213908673 U CN 213908673U CN 202022136210 U CN202022136210 U CN 202022136210U CN 213908673 U CN213908673 U CN 213908673U
- Authority
- CN
- China
- Prior art keywords
- box
- filter
- air inlet
- air outlet
- pipe
- 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.)
- Expired - Fee Related
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 53
- 229920000742 Cotton Polymers 0.000 claims abstract description 22
- 238000002955 isolation Methods 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims description 16
- 230000000844 anti-bacterial effect Effects 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 3
- 241000270295 Serpentes Species 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920006264 polyurethane film Polymers 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 13
- 208000015181 infectious disease Diseases 0.000 abstract description 13
- 239000000443 aerosol Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000000241 respiratory effect Effects 0.000 abstract description 6
- 230000036541 health Effects 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 3
- 206010003497 Asphyxia Diseases 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000005336 safety glass Substances 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model belongs to the technical field of medical equipment, in particular to a medical mask based on PAPR technology, which comprises a protective clothing, wherein the face position of the protective clothing is bonded with an isolation mask, an air inlet pipe connected with the back head of the protective clothing is connected with an air outlet pipe at the top end of a working box through a hose thread, the bottom end of the air outlet pipe is connected with an air outlet of a low-pressure fan, the front end of a connecting pipe connected with the air inlet of the low-pressure fan is connected with a filter box in a clamping way, the front side of the filter box is connected with filter cotton through a 502 filter cotton receiving seat in a clamping way, the working box is connected with one end of a waistband through a connecting buckle, the protective clothing can block liquid and aerosol, the health of a wearer is ensured, the low-pressure fan can keep positive pressure inside the protective clothing, the infection risk of the wearer is reduced, the wearer hardly has any respiratory resistance, the comfort of the wearer is greatly improved, the filter box can be matched with double filtration of the filter cotton, and the infection risk of the wearer is greatly reduced, the isolation mask can replace protective glasses, is comfortable to wear and cannot generate strangulation.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, concretely relates to medical face guard based on PAPR technique.
Background
During the epidemic situation of the novel coronavirus pneumonia, medical workers are high-risk infected people and need to strengthen protection, a lot of problems are caused when goggles and masks are worn, some medical workers can wear multi-layer masks and goggles, the wearing procedure is complicated, the goggles are subjected to water drop by gas exhaled by the medical workers, objects are not clear, fine operation is influenced, and facial trauma can be caused after the masks and the goggles are worn for a long time; in addition, the breathing burden of the medical care personnel is proved to be increased when the medical care personnel wear the multi-layer mask, and the hypoxia symptom can appear after long-time work, therefore, the work efficiency is influenced, the prevention of the unclear visual field and the anoxic symptom caused by the pressure injury of the nose and the fogging of the goggles becomes an important problem to be solved urgently at present, medical workers, as retrograde persons, are high-risk infected people and need to strengthen protection, the infection risk is reduced when the PAPR technology is applied to the medical workers, the phenomena of anoxic dizziness and the like can be effectively improved, a higher respiratory protection level is provided, and under the condition that a P3 grade particulate matter filtering component is used, the filtering efficiency can reach 99.97 percent, can effectively prevent toxic solid particles and other pollutants from being inhaled, improves the infection prevention level, therefore, a medical mask based on PAPR technology is proposed to achieve the purpose of improving the comfort and infection prevention level of medical care personnel.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a medical face guard based on PAPR technique, liquid and aerosol can be blocked to the protective clothing, guarantee that the person of dress is healthy, low pressure positive pressure fan can make the inside malleation that keeps of protective clothing, reduce the infection risk of the person of dress, make the person of dress have almost any respiratory resistance, improve the person of dress comfort greatly, the filter cartridge can cooperate the filter pulp dual filtration, greatly reduced person of dress's infection risk, the isolation face guard can replace safety glasses, and wear comfortablely, can not produce and rein in the trace.
In order to achieve the above object, the utility model provides a following technical scheme: a medical mask based on PAPR technology comprises a protective garment, wherein an isolation mask is fixedly bonded on the face of the protective garment, an antibacterial layer is coated on the inner side of the protective garment, a 3M breather valve is fixedly mounted on the shoulder and back of the protective garment, an air inlet pipe is fixedly connected with the back of the protective garment and is connected with an air outlet pipe at the top end of a working box through a hose thread, a buzzer is fixedly mounted on the right side face of the working box, a battery bin is fixedly mounted on the rear end face of the working box, the bottom end of the air outlet pipe is fixedly connected with an air outlet of a low-pressure fan, an air inlet of the low-pressure fan is fixedly connected with the rear end of a connecting pipe, a filter box is fixedly clamped at the front end of the connecting pipe, a 502 filter cotton receiving seat is fixedly clamped at the front side of the filter box, filter cotton receiving seat is fixedly clamped at the front side of the 502 filter cotton receiving seat, and a control panel is further mounted on the top face of the working box, the work box is connected with one end of the waistband through the connecting buckles fixedly arranged on the left side surface and the right side surface, and the other end of the waistband is fixedly connected with the quick connecting buckle.
Preferably, the protective clothing is of a PTFE double-layer composite membrane structure, and the antibacterial layer is a nano titanium dioxide coating layer; the protective clothing has high mechanical property, chemical corrosion resistance and aging resistance, can block the entry of aerosol in liquid and air, ensures the health of wearing personnel, and the antibacterial layer has the functions of sterilization and disinfection.
Preferably, the number of the 3M breather valves is two, and the two breather valves are symmetrically arranged on the shoulder and back of the protective clothing and penetrate through the interior of the protective clothing; the 3M breather valve that sets up in protective clothing rear side can play the exhaust effect, can avoid directly splashing and produce the potential safety hazard by the measuring personnel's in the place ahead droplet simultaneously.
Preferably, the outer side of the lower end of the air inlet pipe is provided with an external thread structure, the air inlet pipe penetrates through the interior of the protective clothing, the outer side of the upper end of the air outlet pipe is provided with an external thread structure, two ends of the hose are provided with internal thread structures which are matched and connected with the air inlet pipe and the air outlet pipe, the connecting pipe is of a three-way pipe structure, the front end of the connecting pipe penetrates through the front end face of the working box, and the low-pressure fan is fixedly installed in the working box; the inside of low pressure fan during operation accessible outlet duct and hose messenger protective clothing keeps the malleation, and greatly reduced dresses personnel's infection risk makes outside air pass through filter pulp and filter cartridge under low pressure fan's pumping effect simultaneously for the person of wearing does not have any respiratory resistance almost, improves dresses personnel's comfort greatly.
Preferably, the isolation mask is of a transparent colorless polyurethane film structure; the isolation mask can replace protective glasses to play a better isolation protection role, is comfortable to wear and cannot generate tightening marks.
Preferably, the waistband is a nylon woven belt, and the quick-connection buckle is of a metal cobra buckle structure; the user can stably wear the work box on the body or quickly take down the work box by quickly connecting or separating the waistband through the quick-connecting buckle.
Preferably, the filter box is a 3M6000 series filter box, and the filter cotton is P100 type filter cotton; the filter box can be matched with filter cotton to play a double-filtering role, so that a good filtering and isolating effect is achieved, and the infection risk of the wearer is greatly reduced.
Preferably, the battery compartment is electrically connected with the low-voltage fan and the buzzer, and the control panel is electrically connected with the battery compartment and the buzzer; the battery compartment can provide the power for low pressure fan, makes this device not receive the restriction in use place, and when the control panel detected the voltage in battery compartment and crossed low, steerable bee calling organ sent buzzing alarm, reminds wearing personnel in time to change the battery to guarantee the normal use of device.
Compared with the prior art, the beneficial effects of the utility model are that: the protective clothing has higher mechanical property, chemical corrosion resistance and aging resistance, can block the entry of aerosol in liquid and air, ensures the health of wearing personnel, and the antibacterial layer has the functions of sterilization and disinfection; the 3M breather valve arranged at the rear side of the protective clothing can play a role in exhausting air, and can avoid potential safety hazards caused by direct splashing of droplets of detected people in front; when the low-pressure fan works, the interior of the protective suit can be kept at positive pressure through the air outlet pipe and the hose, so that the infection risk of a wearer is greatly reduced, and meanwhile, the outside air can pass through the filter cotton and the filter box under the pumping action of the low-pressure fan, so that the wearer hardly has any breathing resistance, and the comfort of the wearer is greatly improved; the isolating mask can replace protective glasses to play a better isolating and protecting role, is comfortable to wear and cannot generate strange marks; the user can quickly connect or disconnect the waistband through the quick-connecting buckle, and the work box can be stably worn on the body or quickly taken down; the filter box can be matched with filter cotton to play a double-filtering role, so that a good filtering and isolating effect is achieved, and the infection risk of the wearer is greatly reduced; the battery compartment can provide the power for low pressure fan, makes this device not receive the restriction in use place, and when the control panel detected the voltage in battery compartment and crossed low, steerable bee calling organ sent buzzing alarm, reminds wearing personnel in time to change the battery to guarantee the normal use of device.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a rear view of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a partial cross-sectional view of a center shield and protective apparel in accordance with the present invention;
FIG. 4 is a first schematic structural diagram of the work box of the present invention;
FIG. 5 is a schematic structural diagram of a working box of the present invention;
FIG. 6 is a schematic view of the internal structure of the work box of the present invention;
fig. 7 is a rear sectional view of the work box of the present invention;
in the figure: 1. protective clothing; 2. an isolation mask; 3. an antimicrobial layer; 4. a 3M breather valve; 5. an air inlet pipe; 6. a hose; 7. a working box; 8. an air outlet pipe; 9. a buzzer; 10. a battery compartment; 11. a low pressure fan; 12. a connecting pipe; 13. a filter cartridge; 14. 502 a filter cotton holder; 15. filtering cotton; 16. a control panel; 17. a connecting buckle; 18. a waistband; 19. and (6) quick connecting buckles.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-7, the present invention provides the following technical solutions: a medical mask based on PAPR technology comprises a protective suit 1, an isolation mask 2 is fixedly bonded on the face position of the protective suit 1, an antibacterial layer 3 is coated on the inner side of the protective suit 1, a 3M breather valve 4 is fixedly mounted on the shoulder and back of the protective suit 1, an air inlet pipe 5 is fixedly connected with the back head of the protective suit 1, the air inlet pipe 5 is in threaded connection with an air outlet pipe 8 at the top end of a working box 7 through a hose 6, a buzzer 9 is fixedly mounted on the right side face of the working box 7, a battery bin 10 is fixedly mounted on the rear end face of the working box 7, the bottom end of the air outlet pipe 8 is fixedly connected with an air outlet of a low-pressure fan 11, an air inlet of the low-pressure fan 11 is fixedly connected with the rear end of a connecting pipe 12, a filter box 13 is fixedly clamped at the front end of the connecting pipe 12, and a 502 filter cotton receiving seat 14 is fixedly clamped at the front side of the filter box 13, the front side of the 502 filter cotton bearing seat 14 is fixedly clamped with filter cotton 15, the top surface of the working box 7 is also provided with a control panel 16, the working box 7 is connected with one end of a waist belt 18 through a connecting buckle 17 fixedly arranged on the left side surface and the right side surface, and the other end of the waist belt 18 is fixedly connected with a quick connecting buckle 19.
Specifically, the protective clothing 1 is of a PTFE double-layer composite membrane structure, and the antibacterial layer 3 is a nano titanium dioxide coating layer; the protective clothing 1 has high mechanical property, chemical corrosion resistance and aging resistance, can block the entry of aerosol in liquid and air, ensures the health of wearing personnel, and the antibacterial layer 3 has the functions of sterilization and disinfection.
Specifically, the number of the 3M breather valves 4 is two, and the two breather valves are arranged on the back and the shoulders of the protective suit 1 in a bilateral symmetry manner and penetrate through the interior of the protective suit 1; the 3M breather valve 4 arranged at the rear side of the protective suit 1 can play a role in exhausting air, and can avoid potential safety hazards caused by direct splashing of droplets of detected people in front.
Specifically, an external thread structure is arranged on the outer side of the lower end of the air inlet pipe 5, the air inlet pipe 5 penetrates through the interior of the protective suit 1, an external thread structure is arranged on the outer side of the upper end of the air outlet pipe 8, internal thread structures which are matched and connected with the air inlet pipe 5 and the air outlet pipe 8 are arranged at two ends of the hose 6, the connecting pipe 12 is of a three-way pipe structure, the front end of the connecting pipe 12 penetrates through the front end face of the work box 7, and the low-pressure fan 11 is fixedly installed inside the work box 7; 11 during operation accessible outlet duct 8 of low pressure positive pressure fans and 6 inside that make protective clothing 1 of hose keep, greatly reduced dresses personnel's infection risk makes outside air can pass through filter pulp 15 and filter cartridge 13 under low pressure fans 11's pumping effect simultaneously for the person of wearing does not have any respiratory resistance almost, improves dresses personnel's comfort greatly.
Specifically, the isolation mask 2 is of a transparent colorless polyurethane film structure; the isolation mask 2 can replace safety glasses to play a better isolation protection role, is comfortable to wear and cannot generate strange marks.
Specifically, the waistband 18 is a nylon woven belt, and the quick-connection buckle 19 is of a metal cobra buckle structure; the user can quickly attach or detach the belt 18 by means of the snap-in button 19, and the work box 7 can be stably put on or quickly taken off.
Specifically, the filter box 13 is a 3M6000 series filter box, and the filter cotton 15 is P100 type filter cotton; the filter box 13 can be matched with the filter cotton 15 to play a double filtering role, so that a good filtering and isolating effect is achieved, and the infection risk of the wearer is greatly reduced.
Specifically, the battery compartment 10 is electrically connected with the low-voltage fan 11 and the buzzer 9, and the control board 16 is electrically connected with the battery compartment 10 and the buzzer 9; battery compartment 10 can provide the power for low pressure positive blower 11, makes this device not receive the restriction in use place, and when control panel 16 detected the voltage in battery compartment 10 and crossed low, steerable bee calling organ 9 sent the buzzing alarm, reminds the wearing personnel in time to change the battery to guarantee the normal use of device.
The working principle and the using process of the invention are as follows: when a medical worker wears the device to work, the external environment can be observed through the isolation mask 2, the low-pressure fan 11 is started through the control panel 16, a battery with sufficient electric quantity is installed in the battery bin 10 at the moment, after the low-pressure fan 11 operates, the air inlet of the low-pressure fan 11 sucks external air through the connecting pipe 12, the external air is subjected to double filtration through the filter cotton 15 and the filter box 13 before entering the connecting pipe 12, virus droplets and the like are intercepted outside the connecting pipe 12, the filtered air is pumped in the connecting pipe 12 and sequentially passes through the air outlet pipe 8, the hose 6 and the air inlet pipe 5 to enter the protective suit 1, so that a wearer hardly has any respiratory resistance, the comfort of the wearer is greatly improved while the isolation and filtration effect is ensured, the positive pressure environment in the protective suit 1 can also improve the protection level of the device, the protective suit 1 can block aerosol in liquid and air from entering the protective suit 1, guarantee the health of personnel of dress, antibiotic layer 3 has the function of disinfecting, the disinfection, 3M breather valve 4 that sets up at protective clothing 1 rear side can play the exhaust effect, make the exhaust-gas discharge of medical personnel's exhalation, can avoid being directly splashed and produce the potential safety hazard by the detection personnel's in the place ahead droplet simultaneously, when control panel 16 detects the voltage of battery compartment 10 and crosses low, steerable bee calling organ 9 sends the buzzing alarm, remind the personnel of wearing in time to change the battery, thereby guarantee the normal use of device.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A medical mask based on PAPR technology, its characterized in that: comprises a protective suit (1), a face position of the protective suit (1) is fixedly bonded with an isolation mask (2), the inner side of the protective suit (1) is coated with an antibacterial layer (3), a shoulder and back part of the protective suit (1) is fixedly provided with a 3M breather valve (4), a back head part of the protective suit (1) is fixedly connected with an air inlet pipe (5), the air inlet pipe (5) is connected with an air outlet pipe (8) at the top end of a work box (7) through a hose (6) in a threaded manner, a buzzer (9) is fixedly arranged on the right side surface of the work box (7), a battery bin (10) is fixedly arranged on the rear end surface of the work box (7), the bottom end of the air outlet pipe (8) is fixedly connected with an air outlet of a low-pressure fan (11), the air inlet of the low-pressure fan (11) is fixedly connected with the rear end of a connecting pipe (12), and a filter box (13) is fixedly clamped at the front end of the connecting pipe (12), the fixed joint of the front side of filter box (13) has 502 filter pulp to accept seat (14), the fixed joint of the front side of the seat (14) is accepted to 502 filter pulp has filter pulp (15), control panel (16) are still installed to the top surface of work box (7), the one end of waistband (18) is connected through connecting buckle (17) of controlling side fixed mounting in work box (7), the other end fixedly connected with of waistband (18) connects knot (19) soon.
2. A medical mask based on PAPR technology according to claim 1, wherein: the protective clothing (1) is of a PTFE double-layer composite membrane structure, and the antibacterial layer (3) is a nano titanium dioxide coating layer.
3. A medical mask based on PAPR technology according to claim 1, wherein: the number of the 3M breather valves (4) is two, and the breather valves are symmetrically arranged on the shoulder and back of the protective suit (1) and penetrate through the protective suit (1).
4. A medical mask based on PAPR technology according to claim 1, wherein: the outer side of the lower end of the air inlet pipe (5) is provided with an external thread structure, the air inlet pipe (5) penetrates through the inside of the protective clothing (1), the outer side of the upper end of the air outlet pipe (8) is provided with an external thread structure, the two ends of the hose (6) are provided with internal thread structures which are in adaptive connection with the air inlet pipe (5) and the air outlet pipe (8), the connecting pipe (12) is of a three-way pipe structure, the front end of the connecting pipe (12) penetrates through the front end face of the working box (7), and the low-pressure fan (11) is fixedly installed inside the working box (7).
5. A medical mask based on PAPR technology according to claim 1, wherein: the isolation mask (2) is of a transparent colorless polyurethane film structure.
6. A medical mask based on PAPR technology according to claim 1, wherein: the waistband (18) is a nylon woven belt, and the quick connecting buckle (19) is of a metal cobra buckle structure.
7. A medical mask based on PAPR technology according to claim 1, wherein: the filter box (13) is a 3M6000 series filter box, and the filter cotton (15) is P100 type filter cotton.
8. A medical mask based on PAPR technology according to claim 1, wherein: the battery compartment (10) is electrically connected with the low-voltage fan (11) and the buzzer (9), and the control panel (16) is electrically connected with the battery compartment (10) and the buzzer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022136210.7U CN213908673U (en) | 2020-09-25 | 2020-09-25 | Medical mask based on PAPR technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022136210.7U CN213908673U (en) | 2020-09-25 | 2020-09-25 | Medical mask based on PAPR technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213908673U true CN213908673U (en) | 2021-08-10 |
Family
ID=77217857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022136210.7U Expired - Fee Related CN213908673U (en) | 2020-09-25 | 2020-09-25 | Medical mask based on PAPR technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213908673U (en) |
-
2020
- 2020-09-25 CN CN202022136210.7U patent/CN213908673U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2005002545A (en) | Infection protective wear | |
| CN112773014A (en) | Medical double-layer isolation positive pressure protective clothing | |
| CN111513376A (en) | Full-coverage oxygen-enriched epidemic-prevention protective clothing | |
| CN111469498A (en) | Medical protective material containing copper ion antibacterial fabric, protective mask and protective mask | |
| CN111317935A (en) | Transparent breathing protection device | |
| CN111227383A (en) | Transparent mask | |
| CN108338430A (en) | A kind of protective garment | |
| CN213285426U (en) | Positive pressure air supply protective mask for firefighter epidemic prevention | |
| CN213908673U (en) | Medical mask based on PAPR technology | |
| CN211983947U (en) | High protective mask | |
| CN212369433U (en) | External air purifier for breathing channel separation filtering | |
| CN212212735U (en) | Full-coverage diversion type protective clothing | |
| WO2017107950A1 (en) | Double-layer direct-discharging respirator | |
| CN105595465A (en) | An air curtain protection mouth mask | |
| CN111249640A (en) | Portable malleation protector | |
| RU195443U1 (en) | RESPONSE PROTECTION NODE FROM EXPOSURE TO HAZARDOUS SUBSTANCES OF CHEMICAL AND BIOLOGICAL NATURE | |
| CN211631877U (en) | Mask for preventing glasses from fogging | |
| CN212575474U (en) | Transparent breathing protection device and conjoined protective clothing with transparent breathing protection device | |
| CN211932704U (en) | Can prevent atomizing medical gauze mask of glasses | |
| CN212756869U (en) | Portable malleation protector | |
| CN2149929Y (en) | Poison-protective mouthpiece | |
| CN213912032U (en) | Self-adhesion closed medical mask | |
| WO2022036548A1 (en) | Fully encapsulating one-way circulation ventilation type protective clothing | |
| CN111227394A (en) | Protective clothing convenient to heat dissipation, defogging and breathing | |
| CN218127093U (en) | Antifog disposable mask |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |