CN211513188U - Protective mask for pneumology department - Google Patents
Protective mask for pneumology department Download PDFInfo
- Publication number
- CN211513188U CN211513188U CN201921394745.5U CN201921394745U CN211513188U CN 211513188 U CN211513188 U CN 211513188U CN 201921394745 U CN201921394745 U CN 201921394745U CN 211513188 U CN211513188 U CN 211513188U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- air inlet
- mask
- inlet cylinder
- sealing cover
- 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
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A protective mask for pneumology department comprises a mask body, an air inlet cylinder, a first sealing cover, a first connecting belt and a second connecting belt, wherein the mask body is used for being pressed with the face of a user; the mask body is provided with goggles and an oronasal mask; the air inlet cylinder is connected with the mouth-nose mask, a first opening is formed in the other end of the air inlet cylinder, and a first filter screen, a second filter screen, a third filter screen and a fourth filter screen are arranged in the air inlet cylinder side by side along the first opening towards the bottom surface of the air inlet cylinder; nano silver particles, first activated carbon particles and second activated carbon particles are respectively filled among the first filter screen, the second filter screen, the third filter screen and the fourth filter screen; the first sealing cover is detachably arranged on the air inlet cylinder and is provided with a first through hole; one end of the first connecting belt and one end of the second connecting belt are respectively connected with the mask body; the other end of the second connecting belt is connected with the other end of the first connecting belt. The utility model discloses facilitate the use, can carry out effective filtration in order to avoid medical personnel to infect lung disease to the air.
Description
Technical Field
The utility model relates to the technical field of medical appliances, especially, relate to a protective mask is used to pneumology branch of academic or vocational study.
Background
Pulmonary tuberculosis is mostly referred to as pulmonary tuberculosis; lung diseases mainly show a series of symptoms such as low fever, cough, expectoration and the like; lung disease is a susceptible disease; the air of the pneumopathy department contains a lot of bacteria, and the medical staff of the pneumopathy needs to contact with the patient with the pneumopathy frequently, so that the probability of the medical staff infecting the pneumopathy can be increased if the medical staff cannot be well protected; therefore, medical personnel need to wear the protective mask during work; however, the existing protective mask is simple in structure, can not kill germs and the like in the air well and can not play a good role in preventing lung diseases, and the existing protective mask has unsmooth air circulation in the wearing process of medical care personnel, so that the uncomfortable feeling of a user is greatly increased.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the technical problems existing in the background technology, the utility model provides a protective mask for pneumology department, which can effectively kill and filter germs and the like in the air and is convenient to use; in addition, the fan blades blow air in the protective mask to form airflow so as to improve the wearing comfort of a user.
(II) technical scheme
The utility model provides a protective mask for pneumology department, which comprises a mask body, an air inlet cylinder, a first sealing cover, a first connecting belt and a second connecting belt, wherein the mask body is used for being tightly pressed with the face of a user;
the mask body is provided with goggles and an oronasal mask; wherein, the mouth-nose mask is provided with an air inlet;
one end of the air inlet cylinder is provided with a second through hole, one end of the air inlet cylinder is screwed into the air inlet hole, the other end of the air inlet cylinder is provided with a first opening, and a first filter screen, a second filter screen, a third filter screen and a fourth filter screen are arranged in the air inlet cylinder side by side along the first opening towards the bottom surface of the air inlet cylinder; the fourth filter screen is tightly pressed on the bottom surface of the air inlet cylinder;
a first storage bin for storing nano silver particles is formed among the second filter screen, the first filter screen and the inner wall of the air inlet cylinder; a second storage bin for storing the first activated carbon particles is formed among the second filter screen, the third filter screen and the inner wall of the air inlet cylinder; a third storage bin for storing second activated carbon particles is formed among the third filter screen, the fourth filter screen and the inner wall of the air inlet cylinder;
the first sealing cover is detachably arranged on the air inlet cylinder and is provided with a first through hole; the first through hole is communicated with the inside of the air inlet cylinder;
one end of the first connecting belt is connected with the mask body; one end of the second connecting belt is connected with the mask body, and the other end of the second connecting belt is connected with the other end of the first connecting belt.
Preferably, the end face of the mask body contacting with the human body is provided with a medical plastic layer.
Preferably, the first connecting belt and the second connecting belt are made of rubber materials.
Preferably, the diameter of the first activated carbon particle is not smaller than the diameter of the second activated carbon particle.
Preferably, the device comprises an exhaust cylinder, a second sealing cover, fan blades and a driving device; wherein, the mouth-nose mask is provided with an exhaust hole;
two ends of the exhaust cylinder are respectively provided with a second opening, the second opening at one end of the exhaust cylinder is screwed into the second sealing cover, and the thread at one end of the exhaust cylinder is screwed into the exhaust hole; a second opening at the other end of the exhaust funnel is detachably provided with a third sealing cover; wherein, the third sealing cover is provided with an air exhaust hole;
the second sealing cover is provided with an air inlet hole, and the second sealing cover is positioned on the end surface of the exhaust funnel and provided with an installation cylinder;
a partition plate is arranged in the mounting cylinder; the partition board is used for dividing the interior of the installation cylinder into a power supply bin and an installation bin; wherein, a battery is arranged in the power supply bin;
the mounting bin is provided with a third opening on the end face, facing the third sealing cover, of the mounting cylinder;
the driving device is arranged in the installation bin, an output shaft of the driving device penetrates out of the third opening and is connected with the fan blades, and the driving device is electrically connected with the battery.
Preferably, a switch is arranged on the exhaust cylinder; the current output end of the switch is connected with the current input end of the driving device, and the current input end of the switch is connected with the current output end of the battery.
Preferably, an elastic pad is arranged on the end face of the driving device, which is in contact with the inner wall of the mounting bin.
Preferably, an active carbon filter screen is arranged in the exhaust hole.
Preferably, the device comprises a connecting rope, a first semicircular ring and a second semicircular ring;
one end of the connecting rope is connected with the mask body, and the other end of the connecting rope is connected with the first semicircular ring; one end of the first semicircular ring is rotatably connected with one end of the second semicircular ring, and the other end of the first semicircular ring is buckled and connected with the other end of the second semicircular ring.
The above technical scheme of the utility model has following profitable technological effect:
in the utility model, when in use, the user mask body is tightly attached to the face of the user, and then the first connecting belt and the second connecting belt are connected, the first connecting belt and the second connecting belt are evenly and tightly pressed on the head of the user, and the mask body is worn on the head of the user by using the first connecting belt and the second connecting belt;
when a user breathes, outside air enters the air inlet cylinder from the first through hole formed in the first sealing cover; the outside air firstly passes through the second filter screen, the first filter screen and a sterilization layer formed by storing nano silver particles to kill bacteria in the air; the outside air passes through a first purification layer formed by a second filter screen, a third filter screen and first activated carbon particles and a second purification layer formed by the third filter screen, a fourth filter screen and second activated carbon particles to adsorb and purify the air; finally, clean air flows into the inlet nose mask from the second through hole for the user to breathe; the driving device is electrified to operate, and the driving device drives the fan blades to rotate so as to suck the air exhaled by the user in the oronasal mask into the exhaust funnel from the air inlet hole and discharge the air from the air exhaust hole; the air flow formed in the oronasal mask improves the comfort of the user during breathing;
in addition, the air inlet cylinder is replaced, and the mask body and the oral-nasal mask can be reused after being disinfected, so that the utilization rate of the mask body and the oral-nasal mask is improved.
Drawings
Fig. 1 is a schematic perspective view of a mask body of a protective mask for pneumology department according to the present invention.
Fig. 2 is a top view of a mask body in a face shield for a lung disease department according to the present invention.
Fig. 3 is a sectional view of an installation structure of an air inlet tube in a protective mask for a pneumology department.
Fig. 4 is a sectional view of an installation structure of an exhaust funnel in a protective mask for a pneumology department.
Fig. 5 is a schematic structural view of a part a of a protective mask for pneumology department according to the present invention.
Reference numerals: 1. a mask body; 2. goggles; 3. an oronasal mask; 4. a third sealing cover; 5. an exhaust funnel; 6. an active carbon filter screen; 7. an air inlet cylinder; 8. a first sealing cover; 9. a second sealing cover; 10. an air inlet hole; 11. a fan blade; 12. a drive device; 13. mounting the cylinder; 14. a partition plate; 15. a battery; 16. an elastic pad; 17. a first through hole; 18. a first filter screen; 19. nano silver particles; 20. a second filter screen; 21. first activated carbon particles; 22. a third filter screen; 23. second activated carbon particles; 24. a fourth filter screen; 25. a second through hole; 26. a first connecting belt; 27. a second connecting band; 28. connecting ropes; 29. a first semicircular ring; 30. a second semi-circular ring; 31. an exhaust hole; 32. an air inlet; 33. a medical plastic layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-5, the utility model provides a protective mask for pneumology department, which comprises a mask body 1 for pressing with the face of a user, an air inlet tube 7, a first sealing cover 8, a first connecting belt 26 and a second connecting belt 27;
the face mask body 1 is provided with goggles 2 and an oronasal mask 3; wherein, the mouth-nose mask 3 is provided with an air inlet 32;
the mask body 1 and the oronasal mask 3 are of an integrally formed structure; the mask body 1 and the mouth-nose mask 3 are both made of medical plastic materials; the mask body 1 is provided with a mounting hole for mounting the goggles 2; the goggles 2 are made of transparent materials; the oronasal mask 3 is a structure protruding towards one end far away from the mask body 1, and the oronasal mask 3 is used for accommodating the mouth and nose of a user in a matching way;
one end of the air inlet cylinder 7 is provided with a second through hole 25, one end of the air inlet cylinder 7 is screwed into the air inlet hole 32, the other end of the air inlet cylinder 7 is provided with a first opening, and a first filter screen 18, a second filter screen 20, a third filter screen 22 and a fourth filter screen 24 are arranged in the air inlet cylinder 7 side by side along the first opening towards the bottom surface of the air inlet cylinder; wherein, the fourth filter screen 24 is pressed against the bottom surface of the air inlet cylinder 7;
a first storage bin for storing nano silver particles 19 is formed among the second filter screen 20, the first filter screen 18 and the inner wall of the air inlet cylinder 7; the second filter screen 20, the first filter screen 18 and the stored nano silver particles 19 are sequentially compressed to form a sterilization layer for sterilizing bacteria in the air;
a second storage bin for storing the first activated carbon particles 21 is formed among the second filter screen 20, the third filter screen 22 and the inner wall of the air inlet cylinder 7; the second filter screen 20, the third filter screen 22 and the first activated carbon particles 21 are sequentially compressed to form a first purification layer for adsorbing and purifying air;
a third storage bin for storing second activated carbon particles 23 is formed among the third filter screen 22, the fourth filter screen 24 and the inner wall of the air inlet cylinder 7; the third filter screen 22, the fourth filter screen 24 and the second activated carbon particles 23 are sequentially compressed to form a second purification layer for adsorbing and purifying air;
the first sealing cover 8 is detachably arranged on the air inlet cylinder 7, and a first through hole 17 is formed in the first sealing cover 8; wherein, the first through hole 17 is communicated with the inside of the air inlet cylinder 7;
one end of the first connecting belt 26 is connected with the mask body 1; one end of the second connecting band 27 is connected with the mask body 1, and the other end of the second connecting band 27 is connected with the other end of the first connecting band 26; the second connecting band 27 and the first connecting band 26 are connected to form a fixed loop for fixing to the head of a user.
In the utility model, when in use, the mask body 1 of the user is tightly attached to the face of the user, the first connecting belt 26 is connected with the second connecting belt 27, the first connecting belt 26 and the second connecting belt 27 are pressed tightly on the head of the user, and the mask body 1 is worn on the head of the user by using the first connecting belt 26 and the second connecting belt 27;
when a user breathes, outside air enters the air inlet cylinder 7 from the first through hole 17 arranged on the first sealing cover 8; the outside air firstly passes through the second filter screen 20, the first filter screen 18 and the sterilization layer formed by storing the nano silver particles 19 to kill bacteria in the air; the outside air passes through a first purification layer formed by the second filter screen 20, the third filter screen 22 and the first activated carbon particles 21 and a second purification layer formed by the third filter screen 22, the fourth filter screen 24 and the second activated carbon particles 23 to adsorb and purify the air; finally, clean air flows into the nose mask 3 from the second through-hole 25 to be breathed by the user.
In an alternative embodiment, the end face of the mask body 1 contacting with the human body is provided with a medical plastic layer 33; the medical plastic layer 33 can improve the comfort level of the mask body 1 when the mask body is tightly pressed with the face of a user, and prevent the outside air from entering the inner side of the mask body 1 from the gap between the mask body 1 and the face of the user.
In an alternative embodiment, the first connecting band 26 and the second connecting band 27 are made of rubber; the first connecting belt 26 and the second connecting belt 27 are made of elastic rubber materials, so that the requirements of different users can be met; the specific elasticity of the rubber improves the wearing comfort of a user, and the rubber product is convenient to clean and disinfect; the first and second connecting straps 26 and 27 are detachably connected and are adjustable in length after connection, as generally described in detail in the prior art.
In an alternative embodiment, the diameter of the first activated carbon particle 21 is not smaller than the diameter of the second activated carbon particle 23.
In an alternative embodiment, the air exhaust tube 5, the second sealing cover 9, the fan blades 11 and the driving device 12 are included; wherein, the oronasal mask 3 is provided with an exhaust hole 31;
two ends of the exhaust cylinder 5 are respectively provided with a second opening, a second opening internal thread at one end of the exhaust cylinder 5 is screwed into the second sealing cover 9, and a thread at one end of the exhaust cylinder 5 is screwed into the exhaust hole 31; a second opening at the other end of the exhaust funnel 5 is detachably provided with a third sealing cover 4; wherein, the third sealing cover 4 is provided with an air exhaust hole;
an air inlet hole 10 is formed in the second sealing cover 9, and an installation cylinder 13 is arranged on the end face, located on the exhaust cylinder 5, of the second sealing cover 9;
a partition plate 14 is arranged in the mounting cylinder 13; the partition plate 14 is used for dividing the interior of the installation barrel 13 into a power supply bin and an installation bin; wherein, a battery 15 is arranged in the power supply bin;
the end face, facing the third sealing cover 4, of the mounting cylinder 13 of the mounting bin is provided with a third opening;
the driving device 12 is arranged in the installation bin, an output shaft of the driving device 12 penetrates through the third opening and is connected with the fan blades 11, and the driving device 12 is electrically connected with the battery 15; the driving device 12 is a motor;
the driving device 12 is electrified to operate, the driving device 12 drives the fan blades 11 to rotate, so that air exhaled by a user in the oronasal mask 3 is sucked into the exhaust funnel 5 from the air inlet hole 10 and is exhausted from the air exhaust hole; the formation of an air flow within the oronasal mask 3 improves the comfort of the user when breathing.
In an alternative embodiment, the exhaust funnel 5 is provided with a switch; the current output end of the switch is connected with the current input end of the driving device 12, and the current input end of the switch is connected with the current output end of the battery 15.
In an alternative embodiment, the end face of the driving device 12 contacting with the inner wall of the installation chamber is provided with an elastic pad 16; the elastic cushion 16 is provided to reduce the shaking of the driving device 12 during operation, thereby improving the comfort of the user.
In an alternative embodiment, an activated carbon filter screen 6 is arranged in the exhaust hole.
In an alternative embodiment, a connecting rope 28, a first semicircular ring 29 and a second semicircular ring 30 are included;
one end of the connecting rope 28 is connected with the mask body 1, and the other end of the connecting rope 28 is connected with the first semicircular ring 29; one end of the first semicircular ring 29 is rotatably connected with one end of the second semicircular ring 30, and the other end of the first semicircular ring 29 is buckled with the other end of the second semicircular ring 30; the first semi-circular ring 29 and the second semi-circular ring 30 are connected to form a clamping ring for sleeving a ring on the neck of a user; the outer sides of the first semicircular ring 29 and the second semicircular ring 30 are sleeved with plastic sleeves; the first semicircular ring 29 and the second semicircular ring 30 are sleeved with the neck of the user, so that the stability of the user when the user wears the mask body 1 is improved.
In an alternative embodiment, the inner side of the mask body 1 is provided with a water absorbent cotton layer.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A protective mask for a pneumology department is characterized by comprising a mask body (1) used for being pressed against the face of a user, an air inlet cylinder (7), a first sealing cover (8), a first connecting belt (26) and a second connecting belt (27);
the face mask body (1) is provided with goggles (2) and an oronasal mask (3); wherein, the mouth-nose mask (3) is provided with an air inlet (32);
a second through hole (25) is formed in one end of the air inlet cylinder (7), one end of the air inlet cylinder (7) is screwed into the air inlet hole (32) in a threaded manner, a first opening is formed in the other end of the air inlet cylinder (7), and a first filter screen (18), a second filter screen (20), a third filter screen (22) and a fourth filter screen (24) are arranged in the air inlet cylinder (7) in parallel along the first opening towards the bottom surface of the air inlet cylinder; wherein, the fourth filter screen (24) is pressed tightly on the bottom surface of the air inlet cylinder (7);
a first storage bin for storing nano silver particles (19) is formed among the second filter screen (20), the first filter screen (18) and the inner wall of the air inlet cylinder (7); a second storage bin for storing first activated carbon particles (21) is formed among the second filter screen (20), the third filter screen (22) and the inner wall of the air inlet cylinder (7); a third storage bin for storing second activated carbon particles (23) is formed among the third filter screen (22), the fourth filter screen (24) and the inner wall of the air inlet cylinder (7);
the first sealing cover (8) is detachably arranged on the air inlet cylinder (7), and a first through hole (17) is formed in the first sealing cover (8); wherein, the first through hole (17) is communicated with the inside of the air inlet cylinder (7);
one end of the first connecting belt (26) is connected with the mask body (1); one end of the second connecting belt (27) is connected with the mask body (1), and the other end of the second connecting belt (27) is connected with the other end of the first connecting belt (26).
2. The face shield for the department of pulmonary diseases according to claim 1, wherein the face shield body (1) is provided with a medical plastic layer (33) on the end surface contacting with the human body.
3. The mask for pulmonary protection of claim 1, wherein the first connecting band (26) and the second connecting band (27) are made of rubber.
4. The face shield for pneumology department according to claim 1, wherein the diameter of the first activated carbon particles (21) is not smaller than the diameter of the second activated carbon particles (23).
5. The protective mask for the department of pulmonary diseases according to claim 1, characterized by comprising an exhaust funnel (5), a second sealing cover (9), fan blades (11) and a driving device (12); wherein, the mouth-nose mask (3) is provided with an exhaust hole (31);
two ends of the exhaust cylinder (5) are respectively provided with a second opening, a second opening internal thread at one end of the exhaust cylinder (5) is screwed into the second sealing cover (9), and a thread at one end of the exhaust cylinder (5) is screwed into the exhaust hole (31); a second opening at the other end of the exhaust funnel (5) is detachably provided with a third sealing cover (4); wherein, the third sealing cover (4) is provided with an air exhaust hole;
an air inlet hole (10) is formed in the second sealing cover (9), and an installation barrel (13) is arranged on the end face, located on the exhaust barrel (5), of the second sealing cover (9);
a partition plate (14) is arranged in the mounting cylinder (13); the partition plate (14) is used for dividing the interior of the mounting cylinder (13) into a power supply bin and a mounting bin; wherein, a battery (15) is arranged in the power supply bin;
the end surface of the mounting cylinder (13) facing the third sealing cover (4) of the mounting bin is provided with a third opening;
the driving device (12) is arranged in the installation bin, an output shaft of the driving device (12) penetrates through the third opening and is connected with the fan blades (11), and the driving device (12) is electrically connected with the battery (15).
6. The protective mask for the department of pulmonary diseases according to claim 5, characterized in that the exhaust funnel (5) is provided with a switch; the current output end of the switch is connected with the current input end of the driving device (12), and the current input end of the switch is connected with the current output end of the battery (15).
7. The protective mask for the department of pulmonary diseases according to claim 5, characterized in that the end face of the driving device (12) contacting the inner wall of the installation chamber is provided with an elastic pad (16).
8. The face shield for the department of pulmonary diseases according to claim 5, characterized in that the air outlet is provided with an activated carbon filter screen (6).
9. The face shield for pneumology department according to claim 1, comprising a connecting rope (28), a first semicircular ring (29) and a second semicircular ring (30);
one end of the connecting rope (28) is connected with the mask body (1), and the other end of the connecting rope (28) is connected with the first semicircular ring (29); one end of the first semicircular ring (29) is rotatably connected with one end of the second semicircular ring (30), and the other end of the first semicircular ring (29) is buckled with the other end of the second semicircular ring (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394745.5U CN211513188U (en) | 2019-08-26 | 2019-08-26 | Protective mask for pneumology department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394745.5U CN211513188U (en) | 2019-08-26 | 2019-08-26 | Protective mask for pneumology department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211513188U true CN211513188U (en) | 2020-09-18 |
Family
ID=72439487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921394745.5U Expired - Fee Related CN211513188U (en) | 2019-08-26 | 2019-08-26 | Protective mask for pneumology department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211513188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642069A (en) * | 2020-12-28 | 2021-04-13 | 安徽三宝棉纺针织投资有限公司 | Protective mask with blue light prevention, sun protection, dust prevention and antibacterial functions |
-
2019
- 2019-08-26 CN CN201921394745.5U patent/CN211513188U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642069A (en) * | 2020-12-28 | 2021-04-13 | 安徽三宝棉纺针织投资有限公司 | Protective mask with blue light prevention, sun protection, dust prevention and antibacterial functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105617565B (en) | A kind of filtering type breathing mask | |
| CN102763917A (en) | Mask | |
| CN110507020A (en) | A kind of antibiotic property mask | |
| CN211513188U (en) | Protective mask for pneumology department | |
| CN109395272A (en) | A kind of mine dust-proof mask | |
| CN212260553U (en) | Desk type breathing mask | |
| CA3020350C (en) | A wearable three-chamber negative oxygen ion breathing apparatus | |
| CN110613878B (en) | Isolation device for respiratory acute and critical illness | |
| CN111165954A (en) | Letter channel type glasses and mask and working method thereof | |
| CN111602878A (en) | Healthy and safe mask | |
| CN206534968U (en) | A kind of Respiratory Medicine oxygen supply device | |
| KR102365565B1 (en) | Mask that is improved inpracticality | |
| CN205683422U (en) | A kind of hanging air cleaning system of neck | |
| CN212593586U (en) | Nasal part air cleaner and face protection casing | |
| CN212118783U (en) | Active multifunctional epidemic prevention and control tool | |
| CN210494934U (en) | Portable positive pressure ventilation type mask protection system and breathing machine system thereof | |
| CN211798332U (en) | Protective mask with sterilization and disinfection functions | |
| KR20220000700U (en) | transparent mask with ultraviolet sterilizing function | |
| CN111466644A (en) | Electric mask with ozone disinfection function | |
| CN112121320A (en) | Individualized miniature breathing circulation isolation sterilizing machine of wearing | |
| CN213045396U (en) | Breathe internal medicine nursing protection casing | |
| CN213789671U (en) | Nanometer mask with sterilization and disinfection structure | |
| CN218391907U (en) | Wearable respiratory protection equipment | |
| CN219229106U (en) | Ozone-free high-concentration negative ion mask | |
| CN212971771U (en) | Sterilizing 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: 20200918 Termination date: 20210826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |