CN212520878U - An anti-pollution medical mask - Google Patents
An anti-pollution medical mask Download PDFInfo
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- CN212520878U CN212520878U CN202020280345.8U CN202020280345U CN212520878U CN 212520878 U CN212520878 U CN 212520878U CN 202020280345 U CN202020280345 U CN 202020280345U CN 212520878 U CN212520878 U CN 212520878U
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- 238000003860 storage Methods 0.000 claims abstract description 46
- 229920001971 elastomer Polymers 0.000 claims abstract description 29
- 238000007493 shaping process Methods 0.000 claims abstract description 28
- 230000001954 sterilising effect Effects 0.000 claims abstract description 21
- 238000000746 purification Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 239000003814 drug Substances 0.000 claims abstract description 6
- 229940079593 drug Drugs 0.000 claims abstract description 4
- 239000007850 fluorescent dye Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 16
- 241000894006 Bacteria Species 0.000 abstract description 9
- 230000001681 protective effect Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 4
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000009993 protective function Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 17
- 210000001331 nose Anatomy 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 230000002633 protecting effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 208000020029 respiratory tract infectious disease Diseases 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
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- 239000004753 textile Substances 0.000 description 1
- 230000009385 viral infection Effects 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
本实用新型提供一种防污染医用口罩，包括口罩主体，鼻夹条，防污染收纳袋结构，挂耳带，定型条，分割缝线条和护鼻过滤垫，所述的鼻夹条镶嵌在口罩主体的内部上侧位置；所述的防污染收纳袋结构胶接在口罩主体的正表面右侧位置。本实用新型在使用过程中可以从储存罩内拽出收纳胶袋，将口罩主体折叠塞进收纳胶袋内，起到临时收纳的作用，避免在外边对口罩造成污染；在储存罩的左侧设置有凹凸状的密封条的作用下，起到密封的作用，防止细菌进入到收纳胶袋内；完毕后将口罩主体折叠塞进收纳胶袋内后系紧橡胶圈环，然后丢入到回收箱内，避免了细菌的扩散；除菌净化层内有杀菌药物的20g的过滤纸层，提高了防护效果，增强了口罩的防护功能。
The utility model provides an anti-pollution medical mask, which comprises a mask body, a nose clip, an anti-pollution storage bag structure, an ear-hanging strap, a shaping strip, a split seam line and a nose protection filter pad. The nose clip is embedded in the The inner upper position of the mask body; the anti-pollution storage bag structure is glued on the right side of the front surface of the mask body. During the use process of the utility model, the storage plastic bag can be pulled out from the storage cover, and the main body of the mask can be folded and stuffed into the storage plastic bag, which plays the role of temporary storage and avoids the pollution of the mask outside. Under the action of the concave-convex-shaped sealing strip, it acts as a seal to prevent bacteria from entering the plastic storage bag; after completion, fold the main body of the mask into the plastic storage bag, tie the rubber ring, and then throw it into the recycling bag In the box, the spread of bacteria is avoided; the 20g filter paper layer with bactericidal drugs in the sterilization purification layer improves the protective effect and enhances the protective function of the mask.
Description
Technical Field
The utility model belongs to the technical field of medical protective articles, especially, relate to an anti-pollution medical gauze mask.
Background
The medical mask is mainly made by compounding one or more layers of non-woven fabrics, and the main production process comprises melt-blowing, spun-bonding, hot air or needling and the like, has the effects of resisting liquid, filtering particles, bacteria and the like, and is a textile for medical protection.
The medical protective mask is suitable for protecting medical staff and related workers against respiratory tract infectious diseases transmitted by air, is a self-absorption filter type medical protective article with high sealing performance, has high protection level, and is particularly suitable for being worn by patients who contact respiratory tract infectious diseases transmitted by air or droplets at short distance in diagnosis and treatment activities. Can filter particles in the air and block droplets of spray, blood, body fluid, secretion and the like, and belongs to a disposable product. The medical protective mask can prevent most pathogens such as bacteria, viruses and the like, and the WHO recommends that medical personnel adopt the protective mask for preventing particles so as to prevent virus infection in air of hospitals. The common medical mask is used for blocking splashed objects exhaled by the oral cavity and the nasal cavity, can be used for disposable sanitary care in a common medical environment, and has the lowest protection grade. Is suitable for general health care activities, such as sanitary cleaning, liquid preparation, bed cleaning units and the like, or blocking or protecting particles except pathogenic microorganisms, such as pollen and the like.
But current medical gauze mask still has the short temporary storage easily contaminated in the use, does not possess the problem of accomodating parcel processing function after the use.
Therefore, it is very necessary to invent a pollution-proof medical mask.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an anti-pollution medical gauze mask to short-time temporary placement is easily contaminated in solving current medical gauze mask use, does not possess the problem of accomodating parcel processing function after finishing using. An anti-pollution medical mask comprises a mask body, a nose clip strip, an anti-pollution storage bag structure, an ear hanging belt, a shaping strip, a slitting line and a nose protection filter pad, wherein the nose clip strip is embedded in the upper side position inside the mask body; the anti-pollution containing bag is structurally glued to the right side of the front surface of the mask main body; the ear hanging belts are respectively sewn at the left side and the right side of the front surface of the mask main body; the shaping strip is embedded in the periphery of the interior of the mask main body; the dividing suture strip is sewed in the middle of the mask main body; the nose-protecting filter pad is embedded in the middle of the interior of the mask main body.
By the technical scheme, the mask body has the supporting and shaping effects under the action of the shaping strips, so that the stable shaping of the mask body is ensured, the mask body can be effectively attached to the face, and the mask body can be adjusted and adapted according to different sizes of the face; the arrangement of the segmentation suture line is beneficial to correction and division, and the wearing comfort is ensured.
Preferably, the anti-pollution containing bag structure comprises a storage cover, a fluorescent label sticker, a containing rubber bag and a rubber ring, wherein the fluorescent label sticker is longitudinally glued on the front surface of the storage cover; the right end of the containing rubber bag is glued at the right position inside the storage cover; the rubber ring is embedded at the opening at the left side of the accommodating rubber bag.
By the technical scheme, the mask main body is folded and plugged into the containing rubber bag, so that the temporary containing effect is achieved, and the mask is prevented from being polluted at the outer side; under the effect of fluorescent label subsides, can write name sign on it, avoid causing cross infection with the mistake to can carry out reflection of light suggestion, the convenience is seeked when using night, has increased the convenience of using.
Preferably, the gauze mask main part include inboard skin contact layer, moisture absorption layer, degerming purifies the layer, design PE layer and waterproof layer, inboard skin contact layer, moisture absorption layer, degerming purifies the layer, sew up together from inside to outside design PE layer and waterproof layer.
Through above-mentioned technical scheme, satisfy the protection needs that disinfect of the majority, when guaranteeing antibacterial degerming, have the travelling comfort when having increased with skin contact.
Preferably, the storage cover is a rectangular air-tight PVC plastic cover; the left side of the storage cover is provided with a concave-convex sealing strip.
Through the technical scheme, the mask has the function of storage and keeps the self weight of the mask; the concave-convex sealing strips have good sealing effect, play a role in blocking and dividing and avoid bacteria from entering.
Preferably, the storage rubber bag is a transparent latex air bag.
Preferably, the storage plastic bag can be stored in the storage cover.
By the technical scheme, the mask can be accommodated according to different using time, so that the effect of isolating and preventing pollution is achieved; the latex air ball bag has good telescopic performance, increases the convenience of operation and can observe the storage condition of the mask; the space of the mask is saved.
Preferably, the inner skin contact layer, the moisture absorption layer and the sterilization and purification layer are adhered to each other; the shaping PE layer and the waterproof layer are bonded with each other.
Preferably, the shaping strip is a cylindrical silica gel strip; the diameter of the shaping strip is set to be one millimeter to three millimeters.
Preferably, the nose-protecting filter pad is an elliptical sponge pad; the inside of nose protection filter pad is filled with the active carbon particle layer.
Through above-mentioned technical scheme, be favorable to playing further guard action, improve the protecting effect, filter the gas of progress nose, play absorbent effect under the effect of active carbon grained layer.
Preferably, the waterproof layer specifically adopts a PP non-woven fabric layer, and the waterproof layer is provided with ventilation holes with the aperture of 0.1mm to 0.2 mm.
Preferably, the sterilization and purification layer is a 20g filter paper layer filled with sterilization medicine.
Preferably, the thickness ratio of the inner side skin contact layer, the moisture absorption layer, the sterilization purification layer, the shaping PE layer and the waterproof layer is 1:2:2:3:3: 4.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the containing rubber bag can be pulled out from the storage cover in the using process, and the mask main body is folded and plugged into the containing rubber bag to play a role in temporary containing, so that the mask is prevented from being polluted at the outer side; the left side of the storage cover is provided with a concave-convex sealing strip, so that the sealing effect is achieved, and bacteria are prevented from entering the storage rubber bag;
2. after the mask is used, the mask body is folded and plugged into a containing rubber bag, a rubber ring is tied tightly, and then the mask body is thrown into a recycling box, so that the diffusion of bacteria is avoided; the sterilization purification layer is a filter paper layer filled with 20g of sterilization medicine, so that the protection effect is improved, and the protection function of the mask is enhanced.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the rear view of the present invention.
Fig. 3 is a schematic structural view of the mask body of the present invention.
Fig. 4 is a schematic structural view of the anti-pollution storage bag structure of the present invention.
In the figure:
1. a mask body; 1-1, inner skin contact layer; 1-2, moisture absorption layer; 1-3, a sterilization purification layer; 1-4, shaping the PE layer; 1-5, a waterproof layer; 2. a nasal splint; 3. an anti-pollution storage bag structure; 31. a storage cover; 32. sticking a fluorescent label; 33. a plastic bag is stored; 34. a rubber ring; 4. ear hanging belts; 5. shaping strips; 6. dividing a seam line; 7. protect nose filter pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.
Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and the features and technical solutions in the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper" and "lower" indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the utility model is usually placed when using, or the orientation or position relationship that the skilled person usually understands, and such terms are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Example (b):
as shown in the attached drawings 1 to 2, the utility model provides an anti-pollution medical mask, which comprises a mask main body 1, a nose clip strip 2, an anti-pollution containing bag structure 3, a hanging ear belt 4, a shaping strip 5, a cutting suture strip 6 and a nose protection filter pad 7, wherein the nose clip strip 2 is embedded at the upper side position inside the mask main body 1; the anti-pollution containing bag structure 3 is glued to the right side of the front surface of the mask main body 1; the ear hanging belts 4 are respectively sewn at the left and right positions on the front surface of the mask main body 1; the shaping strip 5 is embedded in the periphery of the interior of the mask main body 1; the dividing suture strip 6 is sewed in the middle of the mask main body 1; the nose-protecting filter pad 7 is embedded in the middle of the interior of the mask main body 1.
Therefore, by the technical scheme, the mask body has the function of supporting and shaping under the action of the shaping strip 5, so that the shaping stability of the mask body is ensured, the mask body can be effectively attached to the face, and the mask body can be adjusted and adapted according to different sizes of the face; the arrangement of the split stitches 6 is favorable for correction and division, and comfort in wearing is guaranteed.
As shown in fig. 4, in the above embodiment, specifically, the contamination-proof storage bag structure 3 includes a storage cover 31, a fluorescent label sticker 32, a storage bag 33 and a rubber ring 34, wherein the fluorescent label sticker 32 is longitudinally glued on the front surface of the storage cover 31; the right end of the rubber bag 33 is glued to the right position inside the storage cover 31; the rubber ring 34 is embedded at the left opening of the rubber bag 33.
Therefore, by adopting the technical scheme, the mask body 1 is folded and plugged into the containing rubber bag 33 to play a role of temporary containing, so that the mask is prevented from being polluted at the outer side; under the effect of fluorescent label subsides 32, can write name sign on it, avoid causing cross infection with the mistake to can reflect light suggestion, the convenience is looked for when using night, has increased the convenience of using.
As shown in fig. 3, in the above embodiment, specifically, the mask body 1 includes an inner skin contact layer 1-1, a moisture absorption layer 1-2, a sterilization purification layer 1-3, a shaping PE layer 1-4 and a waterproof layer 1-5, and the inner skin contact layer 1-1, the moisture absorption layer 1-2, the sterilization purification layer 1-3, the shaping PE layer 1-4 and the waterproof layer 1-5 are sewn together from inside to outside.
Therefore, through the above-mentioned embodiment, it can be seen that the mask body 1 is constructed with a non-layer structure (the inner skin contact layer 1-1, the moisture absorption layer 1-2, the sterilization purification layer 1-3, the shaping PE layer 1-4 and the waterproof layer 1-5), and at the same time, the three-layer structure can be tightly connected by sewing, so as to ensure the filtering performance and tightness of the mask.
In the above embodiment, specifically, the storage cover 31 is a rectangular air-tight PVC plastic cover; the left side of the storage cover 31 is provided with a concave-convex sealing strip; the accommodating rubber bag 33 is a transparent latex gas ball bag; the storage bag 33 can be stored inside the storage cover 31.
Therefore, by the technical scheme, the mask can be accommodated according to different using time of the mask, and the effects of isolating and preventing pollution are achieved; the latex air ball bag has good telescopic performance, increases the convenience of operation and can observe the storage condition of the mask; the space of the mask is saved.
In the above embodiment, specifically, the inner skin contact layer 1-1, the moisture absorption layer 1-2 and the sterilization and purification layer 1-3 are adhered to each other; the shaped PE layers 1-4 and the waterproof layers 1-5 are bonded with each other. In the above embodiment, specifically, the waterproof layer 1-5 specifically adopts a PP non-woven fabric layer, and the waterproof layer 1-5 is provided with a ventilation hole with an aperture of 0.1mm to 0.2 mm; the sterilization and purification layer 1-3 is a filter paper layer filled with 20g of bactericidal drugs; the thickness ratio of the inner side skin contact layer 1-1, the moisture absorption layer 1-2, the sterilization purification layer 1-3, the shaping PE layer 1-4 and the waterproof layer 1-5 is 1:2:2:3:3: 4.
In the above embodiment, specifically, the shaping strip 5 specifically adopts a cylindrical silica gel strip; the diameter of the shaping strip 5 is set to be one millimeter to three millimeters; the nose-protecting filter pad 7 is an elliptical sponge pad; the nose-protecting filter pad 7 is filled with an activated carbon particle layer.
Principle of operation
When the utility model is used, the ear hanging belt 4 is hung on the ear, and the nose holding strip 2 is bent to lead the interior of the mask main body 1 to be tightly contacted with the skin of the face, and the nose protecting filter pad 7 is covered at the nose tip; in the using process, the containing rubber bag 33 can be pulled out from the storage cover 31, and the mask main body 1 is folded and plugged into the containing rubber bag 33, so that the temporary containing effect is achieved, and the pollution to the mask at the outer side is avoided; the left side of the storage cover 31 is provided with a concave-convex sealing strip, so that the sealing effect is achieved, and bacteria are prevented from entering the storage rubber bag 33; similarly, after the mask body 1 is used, the mask body is folded and inserted into the containing rubber bag 33 to be tightened with the rubber ring 34, and then the mask body is thrown into a recycling box, so that the diffusion of bacteria is avoided; the sterilization purification layers 1-3 are 20g of filter paper layers filled with sterilization medicines, so that the protection effect is improved, and the protection function of the mask is enhanced.
The above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement may be made to the present invention; all the technical solutions and modifications without departing from the spirit and scope of the present invention are covered by the claims of the present invention.
Claims (10)
1. An anti-pollution medical mask is characterized by comprising a mask main body (1), a nose clip strip (2), an anti-pollution storage bag structure (3), an ear hanging belt (4), a shaping strip (5), a cutting suture strip (6) and a nose protection filter pad (7), wherein the nose clip strip (2) is arranged at the upper side position inside the mask main body (1); the anti-pollution containing bag structure (3) is arranged on the mask main body (1); the two ear hanging belts (4) are arranged at two ends of the mask main body (1); the shaping strips (5) are arranged at the periphery of the interior of the mask main body (1); the dividing suture strip (6) is arranged in the middle of the mask main body (1); the nose-protecting filter pad (7) is arranged in the middle of the interior of the mask main body (1).
2. The anti-contamination medical mask according to claim 1, wherein the anti-contamination receiving bag structure (3) comprises a storage cover (31), a fluorescent label sticker (32), a receiving bag (33) and a rubber ring (34), the fluorescent label sticker (32) being longitudinally disposed on the storage cover (31); the right end of the rubber bag (33) is arranged at the right position inside the storage cover (31); the rubber ring (34) is arranged at the left opening of the rubber bag (33).
3. The contamination-preventive medical mask according to claim 1, wherein said mask body (1) comprises an inner skin contact layer (1-1), a moisture absorbing layer (1-2), a sterilizing purification layer (1-3), a setting PE layer (1-4) and a waterproof layer (1-5), said inner skin contact layer (1-1), the moisture absorbing layer (1-2), the sterilizing purification layer (1-3), the setting PE layer (1-4) and the waterproof layer (1-5) being sewn together from inside to outside.
4. The anti-contamination medical mask of claim 2 wherein said storage shield (31) is a rectangular, air impermeable PVC plastic shield; the left side of the storage cover (31) is provided with a concave-convex sealing strip.
5. The anti-contamination medical mask according to claim 2, wherein the receiving bag (33) is receivable inside the storage cover (31).
6. The contamination-preventive medical mask according to claim 3, wherein the inner skin contact layer (1-1), the moisture absorbing layer (1-2) and the sterilizing and purifying layer (1-3) are adhered to each other; the shaping PE layers (1-4) and the waterproof layers (1-5) are mutually bonded.
7. The anti-pollution medical mask according to claim 1, wherein the shaping strip (5) is a cylindrical silica gel strip; the diameter of the shaping strip (5) is set to be 1-3 mm.
8. The anti-pollution medical mask according to claim 1, wherein said nose-protecting filter pad (7) is an elliptical sponge pad; the nose-protecting filter pad (7) is filled with an activated carbon particle layer.
9. The anti-pollution medical mask according to claim 3, wherein said waterproof layer (1-5) is a PP non-woven fabric layer, and said waterproof layer (1-5) is provided with ventilation holes with a diameter of 0.1-0.2 mm.
10. The anti-contamination medical mask according to claim 3, wherein said sterilizing and purifying layers (1-3) are filter paper layers filled with 20g of sterilizing drugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280345.8U CN212520878U (en) | 2020-03-09 | 2020-03-09 | An anti-pollution medical mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280345.8U CN212520878U (en) | 2020-03-09 | 2020-03-09 | An anti-pollution medical mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212520878U true CN212520878U (en) | 2021-02-12 |
Family
ID=74526480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020280345.8U Active CN212520878U (en) | 2020-03-09 | 2020-03-09 | An anti-pollution medical mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212520878U (en) |
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2020
- 2020-03-09 CN CN202020280345.8U patent/CN212520878U/en active Active
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