CN113812700A - Nose-sticking type partition mask - Google Patents
Nose-sticking type partition mask Download PDFInfo
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- CN113812700A CN113812700A CN202111198482.2A CN202111198482A CN113812700A CN 113812700 A CN113812700 A CN 113812700A CN 202111198482 A CN202111198482 A CN 202111198482A CN 113812700 A CN113812700 A CN 113812700A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
- A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to a nose-attached type partitioned mask, which comprises a mask body, wherein the mask body comprises an outer side antibacterial layer and a filter layer which are arranged in a stacking mode from outside to inside, a nose breathing mechanism is arranged on the mask body and comprises a nose breathing head and a blocking layer, the nose breathing head is used for breathing and ventilating the nose, the blocking layer is positioned on one side, facing the face of a human body, of the filter layer, the mask body comprises a first protective filtering area and a second protective area, the edge of the blocking layer is enclosed by the edge of the blocking layer and is covered by the blocking layer, the second protective area is staggered with the blocking layer, the edge of the blocking layer is connected to the filter layer of the first protective area in a sealing mode, and a ventilating gap communicated with the nose breathing head is formed between the filter layer and the blocking layer. Has the advantages of more comfortable wearing and better protection effect.
Description
Technical Field
The invention relates to a sanitary protective article, in particular to a mask.
Background
The mask is a hygienic product, can be widely used for daily life protection, or can be widely used for the sanitary protection of personnel needing protection, such as fire fighting and disaster relief personnel, fire cause investigators, fire supervision and propaganda training personnel, medical personnel, military police personnel and the like; the mask is generally worn on the mouth and nose for filtering air entering the mouth and nose so as to achieve the effect of blocking harmful gas, smell, spray, virus and other substances. The mask has a certain filtering function on air entering the lung, and has a very good effect when being worn in respiratory infectious diseases and working in environments polluted by dust and the like. The existing common mask comprises a mask body and a suspension loop elastic rope, wherein the mask body is of a multilayer structure and comprises an outer layer, a filter layer and an inner layer, the outer layer is a special material antibacterial layer (non-woven fabric or ultrathin polypropylene melt-blown material layer), the inner layer is a skin-friendly material (common sanitary gauze or non-woven fabric), the filter layer is an isolation filter layer (superfine polypropylene fiber melt-blown material layer), and the mask mainly breathes through the nose and occasionally needs speaking through the mouth in the wearing process; the gauze mask of traditional structure is three layer construction, and gauze mask protective effect receives gauze mask edge and human facial laminating degree to influence great, has the defect that sealed effect is not enough.
In order to improve the technical problems, corresponding improvement attempts are made on the mask, for example, a mask with good dustproof effect is disclosed in the patent document with the Chinese application number of CN201420295341.1, and the mask adopts a breathing buffer layer, a barrier layer and two funnel-shaped conduits; the edge on filter belt layer and the edge fixed connection who separates the barrier layer, breathe the buffer layer and establish filter belt layer and separate between the barrier layer, two funnel type pipes pass and separate the barrier layer and fix above that, distance between them and the distance between two nostrils of people are the same, rely on two funnel type pipes to go into the nose design, the cooperation barrier layer, the gaseous exchange in the arc buffer layer of breathing the nose production, rely on the barrier layer to form the buffering region of breathing, the filter effect receives gauze mask edge and the great influence of human face laminating degree when can solving the nasal part respiratory protection filtration. But the whole mask is covered by the barrier layer, so that the problems of mouth protection requirement and comfort are ignored; during the wearing process of the mask, the mouth breathing and the nose air leakage inevitably exist, and the two parts of air are isolated by the barrier layer and can only be discharged from the edge of the mask; therefore, the balance between the comfort and the protection of the mask is not facilitated, namely, the fit degree of the edge of the mask and a human body cannot be too high to ensure that the exhaled air at the mouth is discharged, so that the mouth is not protected; if the mouth protection is ensured, the gas exhaled from the mouth is easier to stay in the mask and is more difficult to discharge, so that the face discomfort is caused; therefore, the mask is stuffy, so that the wearing comfort and the durability are influenced; a large amount of retained gas is discharged from the joint of the human body, and the glasses are easy to fog for people wearing the glasses.
Therefore, no matter the traditional mask or the mask with the interlayer, the whole protection effect of the mask is greatly influenced by the attaching degree of the edge of the mask and the face of a human body, and the defect that the whole protection effect of the mask is not enough exists. Moreover, the mask with the separation layer can even reduce the comfort of wearing the mask.
Disclosure of Invention
The invention aims at: in order to overcome the defects in the prior art, the invention provides the nose-attaching type subregion mask which adopts the subregion filtering protection design and better adapts to the using conditions of the mouth and the nose when being worn, and has the advantages of more comfortable wearing and better integral protection.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a paste nasal type subregion gauze mask, includes the gauze mask body, and the gauze mask body includes outside antibacterial layer and the filter layer of the range upon range of setting in the outside-in, is equipped with nose respiratory mechanism on the gauze mask body, and nose respiratory mechanism includes that the nasal part breathes the usefulness of taking a breath head and barrier layer, and the barrier layer is located filter layer towards human face one side, its characterized in that: the gauze mask body includes that the barrier layer edge encloses into and covers the first protection filtering area that forms by the barrier layer to and stagger the second protection zone of barrier layer, barrier layer edge sealing connection forms the clearance of taking a breath of intercommunication nasal part ventilation head between filter layer and barrier layer on the filter layer of first protection zone.
By adopting the technical scheme, the first protection filtering area is formed on the mask body, and the second protection area with the staggered barrier layer is arranged on the mask body, namely the barrier layer does not completely cover the whole mask, so that the dual protection area design is realized on the mask, for the nose part mainly used for respiratory protection, the mask body adopts the first protection filtering area design, and the mouth part mainly depends on the second protection area for respiratory; during actual use, breathing is mainly completed through the nasal part, the fitting degree of the nasal part ventilation head and the nasal part can be adjusted and controlled as required, namely, only the nasal part ventilation head is required to be attached to the nostril, the wearing comfort is ensured, in the using process of the mask, the nasal part ventilation head is arranged at the position of the nostril of a human body, the nasal part ventilation is mainly carried out in a ventilation gap, the protective effect formed by the ventilation gap is ensured by the sealing connection of the barrier layer and the filter layer, the mask has better protective guarantee, certain air leakage is allowed to exist between the nasal part ventilation head and the nasal part for the comfort, a small amount of leaked air of the nasal part enters a second protective area, and the second protective area realizes filtering protection; meanwhile, the oral respiration is mainly filtered and protected through a second protection area; thereby forming a multi-dimensional stereo shield. In addition, main breathing (nasal part is breathed) forms waste gas and can not get into human face in a large number through the barrier layer separation, and can discharge through the second protection zone at the facial waste gas of human to improve holistic travelling comfort and the protectiveness of gauze mask, weaken gauze mask edge and human facial laminating degree greatly to gauze mask barrier propterty's influence important degree. The nose-attaching type partition mask can better meet the requirements of comfort and protection, not only improves the filtering protection effect, but also has better wearing comfort and prolongs the wearing time of the mask, thereby further improving the protection effect of the mask on people.
Preferably, the area of the blocking layer is smaller than the area covered by the blocking layer, so that the blocking layer bulges on the filtering layer after the mask body is worn. Under this structural design, the area of barrier layer is less than the filter layer area covered, and like this after the gauze mask is worn, the filter layer expandes the back, can form the uplift between barrier layer and the filter layer for have bigger clearance of taking a breath between barrier layer and the filter layer, the gaseous exchange of being convenient for breathes more smoothly and comfortable when the gauze mask is worn.
Preferably, the barrier layer is located the middle part position of gauze mask body, and the second protection zone on the gauze mask body encircles first protection filtering area. Under this structural design, the gas that gets into the second protection filtering area can better discharge.
Preferably, the nasal ventilation head comprises a nasal ventilation tube integrally formed with a barrier layer. Under this structural design, processing is convenient.
Preferably, the barrier layer is towards the bellied confession shape of filter layer, and the barrier layer has a plurality of bumps towards the shaping of filter layer one side, and the filter layer supports through the bump and forms ventilation gap. Under this structural design, wear more comfortablely, and can be more reliable formation ventilation gap.
Preferably, one end of the nose air exchange head, which is matched with the nose of the human body, is a nose attaching end close to the nostril, the nose attaching end is made of flexible rubber, and the nose attaching end is provided with a circle of thin and elastically deformable nose attaching wing pieces.
Preferably, the end of the nose part air exchange head, which is matched with the nose part of the human body, is a nose pasting end which is close to the nostril, the nose pasting end is made of flexible rubber, a circle of annular convex ribs which are pasted with the nostril opening of the human body are integrally formed at the nose pasting end, and the outer surface of each annular convex rib is arc-shaped.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a nasal-contact type mask according to an embodiment of the present invention;
FIG. 2 is a schematic view of a longitudinal cross-sectional view of a nasal-patch type zoned mask in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural view of a nose ventilation head using a nose patch design in accordance with an embodiment of the present invention;
fig. 4 is a schematic diagram of a barrier layer structure according to an embodiment of the invention.
Detailed Description
Referring to the attached drawings 1-4, the nose-attached type partition mask disclosed by the invention comprises a mask body 1, wherein the mask body 1 is connected with a fixing piece 3, such as a suspension loop, for fixing the mask on the face of a human body, and the mask body 1 comprises an outer antibacterial layer 11 and a filter layer 12 which are stacked from outside to inside so as to be comfortable to wear. Usually, the mask further comprises an inner layer 13, the inner layer 13 is arranged on one side, facing the human face, of a filter layer 12, a nose breathing mechanism is arranged on a mask body 1, the nose breathing mechanism comprises a nose air exchange head 2 for breathing and exchanging air through the nose, and a barrier layer 14, the barrier layer 14 is arranged on one side, facing the human face, of the filter layer 12, at least the part, attached to the nostrils of the human body, of the nose air exchange head 2 is made of flexible rubber, the mask body 1 comprises a first protection filtering area 1-1 which is formed by enclosing the edge of the barrier layer 14 and covered by the barrier layer 14, and a second protection area 1-2 which is formed by staggering the barrier layer 14, namely a filtering area for exhausting gas exhaled from the mouth part is also arranged between the edge, sealed with the human body, of the mask and the edge of the barrier layer 14, and two mutually related protection subareas are arranged in the whole mask protection area formed by the edge, sealed with the human body,barrier The layer 14 is edge-sealed to the filter layer 12, and it is noted here that this connection involves the barrier layer 14 being secured directly to the filter layer The two layers 12 are sealed, or in the case of a mask with an inner layer, the barrier layer 14 is located on the inner layer 13, i.e. the barrier There may also be other layers between the layer 14 and the filter layer, which may be directly at the edge of the barrier layer 14The outer antibacterial layer 11, the filter layer 12 and the inner layer 13 are welded together by ultrasonic waves to achieve the sealing connection between the barrier layer 14 and the filter layer, which is easier to realize in process; of course, it is also possible to provide a structure in which the barrier layer is located between the filter layer 12 and the inner layer 13. The edge of the barrier layer 14 is connected to the filter layer 12 in a sealing manner, if an ultrasonic welding process is adopted, the edge of the barrier layer 14 is enclosed to form the first protective filtering area 1-1 covered by the barrier layer 14, a ventilation gap 15 is formed between the barrier layer 14 and the filter layer 12, the nose ventilation head 2 is fixed on the barrier layer 14, and the nose ventilation head 2 leads to the ventilation gap 15. Is connected to the filter layer by the edge sealing of the barrier layer, thereby forming on the mask bodyThe first protective filtering area and the second protective area staggered with the barrier layer are arranged on the mask body, namely the barrier layer does not completely cover the whole mask, thereby realizing the partition protective design on the mask, when the mask is used, the breathing is mainly completed through the nose, the fitting degree of the nose ventilation head and the nose can be adjusted and controlled according to the requirement, namely, the nose breathing head can be attached to the nostril only by realizing the attachment of the nose breathing head and the nostril, the wearing comfort is ensured, and in the using process of the mask, the nose part ventilation head is arranged at the nose of a human body, the breathing and ventilation of the nose part are mainly carried out in the ventilation gap, the protective effect formed by the ventilation gap is ensured by the sealing connection of the barrier layer and the filter layer, the protective effect is better ensured, certain air leakage is allowed between the nose part ventilation head and the nose part for taking the comfort into account, a small amount of leaked gas at the nose part enters the second protection area and is filtered and protected by the second protection area; meanwhile, the oral respiration is mainly filtered and protected through a second protection area; thereby forming a multi-dimensional stereo shield. In addition, main breathing (nasal part is breathed) forms waste gas and can not get into human face in a large number through the barrier layer separation, and can discharge through the second protection zone at the facial waste gas of human to improve holistic travelling comfort and the protectiveness of gauze mask, weaken gauze mask edge and human facial laminating degree greatly to gauze mask barrier propterty's influence important degree. The nose-attaching type partition mask can better meet the requirements of comfort and protection, not only improves the filtering protection effect, but also has better wearing comfort and prolongs the wearing time of the mask, thereby further improving the protection effect of the mask on people. Under the condition of not considering the filtering performance of the mask material, the nose-attaching type subregion mask expands the adjustment of the protection performance and the comfort performance of the traditional mask to three dimensions of the sealing performance of the edge of the mask, the ventilation proportion of the nose and the air tightness of the ventilation holes of the nose from one dimension of the sealing performance of the edge of the mask, and the influence of the opposite sex of the face on the sealing performance of the mask is greatly eliminated. In different application scenes, the requirements of users on the protection and comfort of the mask can be better met by properly changing the configuration of three dimensions of the mask.
The area of the barrier layer 14 is smaller than the area of the filter layer 12 covered by the barrier layer 14, so that the barrier layer 14 is raised on the middle filter layer 12 after the mask body 1 is worn. The area of barrier layer is less than the filter layer area that is covered, like this after the gauze mask is worn, the filter layer expandes the back, can form the uplift between barrier layer and the filter layer for have bigger clearance of taking a breath between barrier layer and the filter layer, the gaseous exchange of being convenient for breathes more smoothly and comfortable when the gauze mask is worn.
The barrier layer 14 is located in the middle of the mask body 1, and the second protection area 1-2 on the mask body 1 surrounds the first protection filtering area 1-1. The gas that gets into the second protection filtering area can better discharge, also can be comparatively easy realization gauze mask and the laminating of human face.
For the convenience of processing and forming, the nose ventilation head comprises a nose ventilation pipe 22 which is integrally formed with the barrier layer 14, and the end part of the nose ventilation pipe 22 is provided with a structure which is more comfortable and jointed with the nose of a human body, namely a nose end 21 structure. The barrier layer 14 is the protruding confession shape of orientation filter layer, and barrier layer 14 is towards filter layer 12 one side shaping and has a plurality of bumps 141, and filter layer 12 supports through bump 141 and forms ventilation gap. The material of the barrier layer 14 can be selected as desired, and preferably is a soft rubber, such as a silicone sheet, which facilitates the integral molding of the nasal ventilation tube 22, although plastic sheets, films, and the like can also be used.
As shown in fig. 3, in this embodiment, the end of the nose ventilation head 2 that fits the nose of the human body is a nose attaching end 21 that is close to the nostril, the nose attaching end 21 is made of flexible rubber, the nose attaching end 21 is placed at the front edge of the nostril of the human body, and is more comfortable to wear, and the nose attaching end 21 has a thin and elastically deformable loop of nose attaching wings 211. The nose-attaching wing piece is deformed when entering the nostril opening, so that good sealing and fixing effects are achieved, and the thin nose-attaching wing piece which can be elastically deformed has better flexibility and comfort.
As another possible structure of the present invention, the nose-attaching end 21 is integrally formed with a ring of annular convex ribs 212 attached to the nostril of the human body, and the outer surface of the annular convex ribs 212 is arc-shaped. The convex ribs are utilized to achieve positioning and sealing, and the structure is simple.
The protective properties of the invention are illustrated as follows: the airtightness of the conventional mask depends on the degree of fitting the mask to the face, but in reality, the mouth and the nose are in contact with the air. Breaking down these two regions, then in practice the protective properties of the mask = nasal ventilation ratio + air tightness of the nasal vents + filtration properties of the material + [ oral ventilation ratio + nasal ventilation ratio (1-air tightness of the mask) ], air tightness of the mask.
The mask designed in a subarea mode has the core principle of secondary protection, the first protection of the nose part of a key part is carried out, and a first protection filtering area is used; the second protection zone of the staggered barrier layer is equivalent to the secondary protection against nasal leakage and oral breathing gas. If we do not consider the influence of the filterability of the material, the old mask is constructed as follows: protective properties of mask = airtightness of mask
The mask comprises the following parts: protective properties of the mask = nasal ventilation ratio air tightness of nasal vents + [ oral ventilation ratio + nasal ventilation ratio (1-air tightness of nasal vents) ], air tightness of the mask.
The protective performance of the mask is not set to be f, the ventilation proportion of the nose area is x (the ventilation proportion of the mouth area is 1-x), the air tightness of the nose vent hole is y, the air tightness of the mask is z, and the protective performance of the mask with the original structure is as follows:
protective property f of gauze mask with new structure2，
In fact, the original mask is a special case when the air tightness (y) of the nose vent is zero.
For a simple example, the non-segmented respirator has an air tightness of 80%, and if the nose ventilation ratio is 80% and the nose ventilation air tightness is 80%, the protective properties of the new respirator are =0.8 × 0.8+ [1-0.8 × 0.8] × 0.8=0.928
The relationship between the protective force of the mask with the new structure and each factor is as follows:
change ofThe influence of the nasal breathing ratio is:
the influence of changing the air tightness of the nose vent hole is as follows:
the nose breathing proportion and the nose breathing airtightness are improved in the new structure and have the same significance, the original structure only can change the airtightness of the mask, the partition structure is equivalent to two means, and the higher the airtightness of the mask is, the lower the significance of improving the nose breathing proportion and the airtightness of the nose vent hole is;
the effect of changing the mask airtightness was:
the original structure is
This indicates that the significance of improving the air tightness of the whole mask with the improvement of the nasal breathing ratio and the rise of the air tightness of the nasal vent drops sharply with the improvement of the nasal breathing ratio under the new structure.
Therefore, if the protective force of the mask with the new structure is further improved, the mask should be balanced and improved. The three indexes are different from the comfort perspective, the air tightness of the whole mask is difficultly improved, the human body is difficultly improved, the air tightness of the nose is improved to the next time, the nose breathing ratio is improved to the simplest degree, and the breathing is realized by using less mouth.
In practical use, we should consider application scenarios, where we often speak very rarely in public places or areas with high air pollution, and in fact, these two areas are also areas of major concern. When we do not speak in important areas and the ventilation ratio x of the nose area is close to 1, and we use the partitioned mask in the areas, the protection performance f of the mask with the new structure3，
In the same example, if the airtightness of the mask with an undivided structure is 80%, the nose ventilation ratio is 100%, and the airtightness of the nose ventilation holes is 80%, the protective performance of the mask with a new structure is =0.8+ [1-0.8] × 0.8=0.96, and the protective performance of the mask is greatly improved.
Claims (7)
1. The utility model provides a paste nasal type subregion gauze mask, includes the gauze mask body, and the gauze mask body includes outside antibacterial layer and the filter layer of the range upon range of setting in the outside-in, is equipped with nose respiratory mechanism on the gauze mask body, and nose respiratory mechanism includes that the nasal part breathes the usefulness of taking a breath head and barrier layer, and the barrier layer is located filter layer towards human face one side, its characterized in that: the gauze mask body includes that the barrier layer edge encloses into and covers the first protection filtering area that forms by the barrier layer to and stagger the second protection zone of barrier layer, barrier layer edge sealing connection forms the clearance of taking a breath of intercommunication nasal part ventilation head between filter layer and barrier layer on the filter layer of first protection zone.
2. The nose-fitted partitioned mask of claim 1, wherein: the first protection filtering area is located in the middle of the mask body, and the second protection area on the mask body surrounds the first protection filtering area.
3. The nose-fitted partitioned mask of claim 2, wherein: the nasal ventilation head comprises a nasal ventilation tube integrally formed with a barrier layer.
4. The nose-fitted partitioned mask of claim 3, wherein: the barrier layer is towards the bellied arch of filter layer, and the barrier layer has a plurality of bumps towards filter layer one side shaping, and the filter layer supports through the bump and forms ventilation gap.
5. The nose-fitted partitioned mask of claim 1, wherein: the area of barrier layer is less than the area that the filter layer was covered by the barrier layer to make the gauze mask body after wearing barrier layer uplift on the filter layer.
6. The nose-fitted partitioned mask of claim 1, wherein: the nose ventilation head is characterized in that one end of the nose ventilation head matched with the nose of a human body is a nose attaching end close to the nostril, the nose attaching end is made of flexible rubber, and the nose attaching end is provided with a circle of thin and elastically deformable nose attaching wing pieces.
7. The nose-fitted partitioned mask of claim 1, wherein: the nose part is taken a breath on the head and is pressed close to the nose end of nostril complex one end, and the nose end of pasting is made for flexible rubber, pastes nose end integrated into one piece and has the annular protruding muscle of round and human nostril mouth laminating, and the surface of annular protruding muscle is arc.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022373762X | 2020-10-22 | ||
| CN202022373762 | 2020-10-22 |
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| CN113812700A true CN113812700A (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111198482.2A Pending CN113812700A (en) | 2020-10-22 | 2021-10-14 | Nose-sticking type partition mask |
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| WO (1) | WO2022083500A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083500A1 (en) * | 2020-10-22 | 2022-04-28 | 邱萍 | Nose-fitting partitioned mask |
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- 2021-10-14 CN CN202111198482.2A patent/CN113812700A/en active Pending
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| CN106617384A (en) * | 2015-11-04 | 2017-05-10 | 钟劲枫 | In-nose type mask |
| CN107259674A (en) * | 2017-07-05 | 2017-10-20 | 王恒成 | A kind of new nasal-suction type mouth mask |
| JP6770223B1 (en) * | 2020-01-01 | 2020-10-14 | マフレン株式会社 | Nostril mask |
| CN213404934U (en) * | 2020-02-17 | 2021-06-11 | 湖南中洲节能科技股份有限公司 | Cavity-divided breathing mask |
| CN212308688U (en) * | 2020-04-08 | 2021-01-08 | 司马通 | Protection type mouth nose disconnect-type gauze mask |
| CN111743247A (en) * | 2020-08-04 | 2020-10-09 | 嘉兴文穗智能设备有限公司 | Novel mask |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083500A1 (en) * | 2020-10-22 | 2022-04-28 | 邱萍 | Nose-fitting partitioned mask |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022083500A1 (en) | 2022-04-28 |
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