CN107549897A - A kind of double breather valve deodorant masks - Google Patents
A kind of double breather valve deodorant masks Download PDFInfo
- Publication number
- CN107549897A CN107549897A CN201710803205.7A CN201710803205A CN107549897A CN 107549897 A CN107549897 A CN 107549897A CN 201710803205 A CN201710803205 A CN 201710803205A CN 107549897 A CN107549897 A CN 107549897A
- Authority
- CN
- China
- Prior art keywords
- mouth mask
- breather valve
- layer
- double
- mask layer
- 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.)
- Pending
Links
- 239000002781 deodorant agent Substances 0.000 title claims abstract description 23
- 206010049244 Ankyloglossia congenital Diseases 0.000 claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 238000005367 electrostatic precipitation Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 238000009298 carbon filtering Methods 0.000 claims description 2
- 230000035699 permeability Effects 0.000 abstract description 5
- 241000219146 Gossypium Species 0.000 description 13
- 239000007789 gas Substances 0.000 description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000004332 deodorization Methods 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 208000008784 apnea Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a kind of double breather valve deodorant masks, mouth mask includes mouth mask layer, frame, connector, elastic frenulum, mouth mask layer edge sets frame, frame both sides are respectively provided with connector, connector connects elastic frenulum, mouth mask layer includes the internal layer for suturing setting successively from the inside to the outside, activated carbon filter layer, electrostatic precipitation filters layer of cloth, gum sprayed cotton layer, outer layer, mouth mask layer sets two mounting holes, breather valve is flexibly connected in each mounting hole, breather valve includes base, upper lid, valve body, base is flexibly connected with mounting hole, covered on base in connection, valve body is installed between base and upper lid, valve body is one-way breather valve body, on be covered with exhaling hole, the top of mouth mask is arranged to catch the V-type of nose, the lower end of mouth mask is arranged to catch the arc of chin.This pair of breather valve is set, and avoids sultry, and good seal performance, edge does not leak；Permeability is good, breathed after wearing it is smooth, suitable for high temperature, high humidity, high sultry place.
Description
Technical field
The present invention relates to mouth mask field, specially a kind of double breather valve deodorant masks.
Background technology
PM2.5 air in 2013 endangers the appearance of concept, triggers attention of the public to air pollution problems inherent so that mouth mask etc.
Protective articles is very in great demand during haze weather.Mouth mask be generally worn over snout be used for filter enter mouth and nose air, with
Reach the gas, smell, the spittle of blocking harmful, mouth mask can be divided into air filtering type mask and Gas feeding mouth mask.For preventing and treating
PM2.5 mouth mask is air filtering type mask.
Because mouth mask is made of clothes such as non-woven fabrics, gauze, cottons more, after long periods of wear, hot gas caused by breathing
It is difficult to distribute, not only causes unsmooth breath, while breathes the waste gas such as the carbon dioxide taken out of can also remain in mouth mask, mouth
Cover just loses original effect for crossing air filtering.Therefore, it is very necessary to research and develop a mouth mask with breather valve so that breathing
When damp-heat air by breather valve exclude, mouth case temperature reduce, ensure respiration smooth, what is ensured respiration is with fresh air.Meanwhile
The odor-resistant result of existing mouth mask is bad, it is desirable to accomplishes good odor-resistant result, must just thicken deodorization layer, but thicken deodorization layer again
Unsmooth breath can be caused, it is therefore necessary to be developed into a new breather valve deodorant mask.
The content of the invention
To solve the above problems, the invention discloses a kind of double breather valve deodorant masks, the mouth mask has double breather valves, wears
Wearer breathes smooth, good air purification effect, deodorization excellent performance.
In order to reach object above, the present invention provides following technical scheme：
A kind of double breather valve deodorant masks, the mouth mask include mouth mask layer, frame, connector, elastic frenulum, the mouth mask layer side
Edge sets frame, and the frame wraps up the edge of the mouth mask layer, and the frame both sides are respectively provided with connector, and the connector connects
Elastic frenulum is connect, the mouth mask layer includes suturing internal layer, activated carbon filter layer, the electrostatic precipitation filtering of setting successively from the inside to the outside
Layer of cloth, gum sprayed cotton layer, outer layer, the mouth mask layer set two mounting holes, breather valve, institute are flexibly connected in each mounting hole
Stating breather valve includes base, upper lid, valve body, and the base is flexibly connected with mounting hole, is covered on the base in connection, the bottom
For seat with being flexibly connected valve body between upper lid, the valve body is one-way breather valve body；Exhaling hole, the mouth mask layer are covered with described
It is overall convex.
Further, the elastic frenulum is ear belt elastic frenulum, the ear belt elastic frenulum setting two, described
Be connected band respectively on ear belt mouth mask, the lock that connection mutual cooperation is pinned respectively in the fixing band.Ear belt elasticity
Frenulum is directly hung on ear, easy to use, but the sealing of mouth mask weakens, therefore is connected on ear belt elastic frenulum
Band, fixing band are connected by latching, and can strengthen the sealing of mouth mask.
Further, the elastic frenulum is wear-type elastic frenulum, and the elastic frenulum is provided with adjusting button, the bullet
Property frenulum passes through the adjusting button.For wear-type elastic frenulum is worn compared with ear belt, more cumbersome, but the sealing of mouth mask
Can be more preferable, the setting of adjusting button causes the length of elastic frenulum can adjust, and facilitates the wearer of different head circumferences to use.
Further, two breather valves are symmetrical set on mouth mask layer.
Further, the breather valve snaps connection with the mounting hole.The flexible connection of convenient dismounting.It is conveniently replaced
Breather valve.
Further, the breather valve is threadedly coupled with the mounting hole.The flexible connection of convenient dismounting.It is conveniently replaced
Breather valve.
Further, the upper lid is surrounded by exhaling hole.Exhaling hole is arranged on the surrounding of lid, and air-flow is from surrounding
Exhaling hole enters, and avoids air-flow from directly entering from front, valve body is impacted, while do not influence the attractive in appearance of whole breather valve.
Further, the mouth mask sets pressure nose bar, and the bridge of the nose aluminum strip is connected on the outside of the outer layer, the bridge of the nose aluminium
The middle part forward fold of bar is curved to be matched with the bridge of the nose of human body, and the position of the bridge of the nose aluminum strip and elastic traction belt, which is staggered, to be set
Put.
Preferably, the internal layer is gauze layer, the outer layer is nonwoven layer.Outer layer uses nonwoven layer, has anti-
The characteristics of damp, ventilative, soft, cheap；Internal layer directly contacts human body face, using the gauze layer of softness, soft comfortable, leads to
Permeability is good.
The course of work and principle of the present invention：Air filters layer of cloth, activated carbon mistake through outer layer, gum sprayed cotton layer, electrostatic precipitation
Filtering layer, internal layer enter mouth and nose, and first layer is non-woven fabrics outer layer, has aided filter, can effectively filter 0.5 micron of dust；The
Two layers are activated carbon filter layer, can filter harmful organic gas such as benzene, dichloromethane and sour smell, effectively obstruct micro- toxicity
Gas, and effectively filter PM2.5 particulate matters；Third layer is that electrostatic precipitation filters layer of cloth, the particulate matter that more than 0.3 micron of filtering；
4th layer is gum sprayed cotton layer, and gum sprayed cotton has the advantage of Resisting fractre, and mouth mask is more durable, and layer 5 is gauze layer, gas permeability
Good, not vexed not hot, wearer's wear comfort improves.The gas of exhalation is discharged through breather valve, and breather valve uses one-way breather valve,
One-way breather valve has the unidirectional respiratory function of " only import but no export ".Damp-heat air excludes by breather valve during breathing, temperature in mouth mask
Degree reduces, if damp-heat air is gathered in inside mouth mask during apnea valve, causes unsmooth breath, continues the waste gas of breathing discharge.
The invention has the advantages that：
（1）Double breather valve deodorant masks of the present invention, the settings of double breather valves, can effectively discharge the waste gas of exhalation, avoid it is sultry,
Suitable for high temperature, high humidity, high sultry place；
（2）Breather valve deodorant masks of the invention double, strainability is good, can effectively Chalk-dust filtering particle, organic gas and its acid
Foul smell taste, deodorization performance are good；
（3）Double breather valve deodorant masks of the present invention, good seal performance, edge does not leak；
（4）Double breather valve deodorant masks of the present invention, permeability is good, is breathed after wearing smooth；
（5）Suitable for technical fields such as chemical industry chemistry, the manufacture of chemical industry preparation, agricultural chemicals, solvent cleaning, spray painting, ink printings, can have
Effect obstructs micro- poisonous gas, filters organic gas and acid smell taste, filters fine dust.
Brief description of the drawings
Fig. 1, embodiment 1 front view（Front view is seen as from outer layer direction）；
Fig. 2, embodiment 1 rearview（Rearview is seen as from internal layer direction）；
Fig. 3, Fig. 1 A-A profiles；
Fig. 4, embodiment 3 front view（Front view is seen as from outer layer direction）.
Wherein：Double breather valve deodorant masks 100, mouth mask layer 1, frame 2, connector 3, elastic frenulum 4, internal layer 5, activated carbon
Filter layer 6, electrostatic precipitation filtering layer of cloth 7, gum sprayed cotton layer 8, outer layer 9, mounting hole 10, breather valve 11, base 110, upper lid 111,
Valve body 112, exhaling hole 14, fixing band 15, lock 16, pressure nose bar 17, adjusting button 18.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following embodiments are only
For illustrating the present invention rather than limitation the scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of double breather valve deodorant masks 100, mouth mask include mouth mask layer 1, frame 2, connection
Part 3, elastic frenulum 4, mouth mask layer edge wrap set frame, and frame wraps up the edge of mouth mask layer, and frame is elastic cotton material, side
Frame both sides are respectively provided with connector, and connector is the cyclic adapting piece that elastic cotton is made, and connector connects elastic frenulum, mouth mask layer bag
Include the internal layer 5 for suturing setting successively from the inside to the outside, activated carbon filter layer 6, electrostatic precipitation filtering layer of cloth 7, gum sprayed cotton layer 8, outer layer
9, mouth mask layer sets two mounting holes 10, and breather valve 11 is flexibly connected in each mounting hole, and breather valve includes base 110, upper lid
111st, valve body 112, base are flexibly connected with mounting hole, are covered on base in connection, valve body, valve are flexibly connected between base and upper lid
Body is one-way breather valve body；On be covered with exhaling hole 14, mouth mask layer is integrally convex.
In the present embodiment, the elastic frenulum is ear belt elastic frenulum, and the ear belt elastic frenulum sets two,
Be connected band 14 respectively on the ear belt mouth mask, the lock 15 that connection mutual cooperation is pinned respectively in the fixing band.Ear
Belt elastic frenulum is directly hung on ear, easy to use, but the sealing of mouth mask weakens, therefore on ear belt elastic frenulum
Be connected band, and fixing band is connected by latching, and can strengthen the sealing of mouth mask.Connector sets four altogether, in the every of frame
Side is respectively provided with two, facilitates ear belt elastic frenulum to tie up on connector.
Further, two breather valves are symmetrical set on mouth mask layer.Two breather valves are set, can more easily be arranged
Go out the waste gas of exhalation, be symmetrical arranged it is not only attractive in appearance, and cause gas uniformly discharge.
In the present embodiment, mounting hole is circular hole, and breather valve is circular breather valve.Certainly in other embodiments, installation
The regular shape such as triangle, square can be selected in the shape of hole and breather valve, and irregular shape also may be selected.
Further, breather valve snaps connection with mounting hole.Snap connection convenient dismounting, conveniently replaced breather valve.
Buckle is formed using certain flexible plastic material in the present embodiment, buckle is made up of keeper, fastener, keeper installation
In mounting hole, fastener is arranged on breather valve.
Further, upper lid is surrounded by exhaling hole.Exhaling hole is arranged on the surrounding of lid, expiration of the air-flow from surrounding
Hole enters, and avoids air-flow from directly entering from front, valve body is impacted, while do not influence the attractive in appearance of whole breather valve.
Further, mouth mask sets pressure nose bar 17, and the bridge of the nose aluminum strip is connected on the outside of the outer layer, the bridge of the nose aluminum strip
Middle part forward fold it is curved matched with the bridge of the nose of human body, the position of the bridge of the nose aluminum strip and elastic traction belt, which is staggered, to be set
Put.
Preferably, the internal layer is gauze layer, the outer layer is nonwoven layer.Outer layer uses nonwoven layer, has anti-
The characteristics of damp, ventilative, soft, cheap；Internal layer directly contacts human body face, using the gauze layer of softness, soft comfortable, leads to
Permeability is good.
Embodiment 2
In the present embodiment, breather valve is threadedly coupled with mounting hole.The flexible connection of convenient dismounting.Conveniently replaced breather valve.
It is threaded on breather valve, the screw thread to be matched with breather valve screw thread is provided with mounting hole.It is threadedly coupled convenient disassembly.
Other structures are consistent with embodiment 1.
Embodiment 3
A kind of double breather valve deodorant masks 100 as shown in Figure 4, in the present embodiment, elastic frenulum is wear-type elastic frenulum,
Elastic frenulum is provided with adjusting button 18, and elastic frenulum passes through adjusting button.It is numerous for wear-type elastic frenulum is worn compared with ear belt
It is more trivial, but the sealing property of mouth mask is more preferable, and the setting of adjusting button causes the length of elastic frenulum can adjust, and facilitates different head circumferences
Wearer use.Connector sets 2 altogether, is respectively provided with 1 in every side of frame, facilitates wear-type elastic frenulum to tie up to company
On fitting.
Other structures are consistent with embodiment 1.
Embodiment 4
The manufacturing process of double breather valve deodorant masks described in embodiment 1：By gauze, activated carbon filtering cloth, electrostatic precipitation filtering
Cloth, gum sprayed cotton, non-woven fabrics are placed on spherical grinding tool, and compression forms mouth mask layer, and mouth mask layer is convex；It is symmetrical on mouth mask layer
Two mounting holes are opened up, breather valve is installed in mounting hole.Elastic cotton is sutured at the edge of mouth mask layer, elastic cotton forms frame,
The preliminary configuration of mouth mask is prepared, by the connector of elastic cotton suture circlewise, the connector is then sutured on frame, by bullet
Property frenulum pass through connector, the both ends of frenulum are sutured, form the ear belt frenulum of ring-type, frenulum directly can be hung on ear.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to
Formed technical scheme is combined by above technical characteristic.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
- A kind of 1. double breather valve deodorant masks, it is characterised in that：The mouth mask includes mouth mask layer, frame, connector, elasticity system Band, the mouth mask layer edge set frame, and the frame wraps up the edge of the mouth mask layer, and the frame both sides are respectively provided with connection Part, the connector connect elastic frenulum, and the mouth mask layer includes suturing the internal layer of setting, activated carbon filtering successively from the inside to the outside Layer, electrostatic precipitation filtering layer of cloth, gum sprayed cotton layer, outer layer, the mouth mask layer set two mounting holes, lived in each mounting hole Dynamic connection breather valve, the breather valve include base, upper lid, valve body, and the base is flexibly connected with mounting hole, on the base Covered in connection, valve body is flexibly connected between the base and upper lid, the valve body is one-way breather valve body；It is covered with and exhales on described Stomata, the mouth mask layer are integrally convex.
- A kind of 2. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：The elastic frenulum is ear belt bullet Property frenulum, the ear belt elastic frenulum sets two, and be connected band respectively on the ear belt mouth mask, in the fixing band The lock that connection mutual cooperation is pinned respectively.
- A kind of 3. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：The elastic frenulum is wear-type bullet Property frenulum, the elastic frenulum are provided with adjusting button, and the elastic frenulum passes through the adjusting button.
- A kind of 4. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：Two breather valves are symmetrical set On mouth mask layer.
- A kind of 5. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：The breather valve and the mounting hole Snap connection.
- A kind of 6. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：The breather valve and the mounting hole Threaded connection.
- A kind of 7. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：The upper lid is surrounded by expiration Hole.
- A kind of 8. double breather valve deodorant masks as claimed in claim 1, it is characterised in that：The mouth mask sets pressure nose bar, institute State bridge of the nose aluminum strip to be connected on the outside of the outer layer, the middle part forward fold of the bridge of the nose aluminum strip is curved with the bridge of the nose kissing of human body Close, the position stagger setting of the bridge of the nose aluminum strip and elastic traction belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803205.7A CN107549897A (en) | 2017-09-08 | 2017-09-08 | A kind of double breather valve deodorant masks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803205.7A CN107549897A (en) | 2017-09-08 | 2017-09-08 | A kind of double breather valve deodorant masks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107549897A true CN107549897A (en) | 2018-01-09 |
Family
ID=60980165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710803205.7A Pending CN107549897A (en) | 2017-09-08 | 2017-09-08 | A kind of double breather valve deodorant masks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107549897A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108634443A (en) * | 2018-04-16 | 2018-10-12 | 新疆古纳斯维药科技有限公司 | A kind of process of novel oxygen inhalation gauze mask and the novel oxygen inhalation gauze mask of manufacture |
| CN108903090A (en) * | 2018-08-29 | 2018-11-30 | 张家港市美洁日用品有限公司 | A kind of solid haze mask |
| CN109349704A (en) * | 2018-10-31 | 2019-02-19 | 名典上品（北京）信息技术有限公司 | A kind of protective mask |
| CN110477486A (en) * | 2019-07-19 | 2019-11-22 | 河南省超亚医药器械有限公司 | A kind of fever mask |
| CN110580966A (en) * | 2019-09-09 | 2019-12-17 | 潍坊护理职业学院 | special protective clothing of internal medicine with antibiotic radiation protection function |
| CN111602900A (en) * | 2020-06-04 | 2020-09-01 | 南京工业大学 | Antibacterial and antivirus mask |
| CN112339312A (en) * | 2019-08-06 | 2021-02-09 | 上海大胜卫生用品制造有限公司 | Mask manufacturing equipment and manufacturing method |
| CN112494837A (en) * | 2020-12-03 | 2021-03-16 | 林语轩 | High protective mask adaptive to facial features of infant |
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| CN207383599U (en) * | 2017-09-08 | 2018-05-22 | 盐城方天无纺制品有限公司 | A kind of double breather valve deodorant masks |
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| CN203763695U (en) * | 2014-02-17 | 2014-08-13 | 张毅林 | Gill breathing type respirator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108634443A (en) * | 2018-04-16 | 2018-10-12 | 新疆古纳斯维药科技有限公司 | A kind of process of novel oxygen inhalation gauze mask and the novel oxygen inhalation gauze mask of manufacture |
| CN108903090A (en) * | 2018-08-29 | 2018-11-30 | 张家港市美洁日用品有限公司 | A kind of solid haze mask |
| CN109349704A (en) * | 2018-10-31 | 2019-02-19 | 名典上品（北京）信息技术有限公司 | A kind of protective mask |
| CN110477486A (en) * | 2019-07-19 | 2019-11-22 | 河南省超亚医药器械有限公司 | A kind of fever mask |
| CN112339312A (en) * | 2019-08-06 | 2021-02-09 | 上海大胜卫生用品制造有限公司 | Mask manufacturing equipment and manufacturing method |
| CN110580966A (en) * | 2019-09-09 | 2019-12-17 | 潍坊护理职业学院 | special protective clothing of internal medicine with antibiotic radiation protection function |
| CN111602900A (en) * | 2020-06-04 | 2020-09-01 | 南京工业大学 | Antibacterial and antivirus mask |
| CN112494837A (en) * | 2020-12-03 | 2021-03-16 | 林语轩 | High protective mask adaptive to facial features of infant |
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