CN216453485U - Face attaching sheet used with mask and mask - Google Patents

Face attaching sheet used with mask and mask Download PDF

Info

Publication number
CN216453485U
CN216453485U CN202122020679.9U CN202122020679U CN216453485U CN 216453485 U CN216453485 U CN 216453485U CN 202122020679 U CN202122020679 U CN 202122020679U CN 216453485 U CN216453485 U CN 216453485U
Authority
CN
China
Prior art keywords
face
arc
nose
mask
opening structure
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.)
Active
Application number
CN202122020679.9U
Other languages
Chinese (zh)
Inventor
周亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Zhimi Air Purification Technology Co ltd
Original Assignee
Shanghai Zhimi Air Purification Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Zhimi Air Purification Technology Co ltd filed Critical Shanghai Zhimi Air Purification Technology Co ltd
Priority to CN202122020679.9U priority Critical patent/CN216453485U/en
Application granted granted Critical
Publication of CN216453485U publication Critical patent/CN216453485U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The utility model discloses a face attaching sheet used in cooperation with a mask and the mask. The face fitting piece is provided with an opening structure, the opening structure comprises a first opening structure matched with the mouth of a human body and a second opening structure matched with the nose of the human body, and the first opening structure is communicated with the second opening structure; the first opening structure is provided with a first arc-shaped contour line matched with the mouth of the human body, and the second opening structure is provided with a second arc-shaped contour line matched with the nose of the human body. The face attaching piece matched with the mask provided by the embodiment of the utility model has the advantages that the adaptability of the outline of the opening structure and the outline of the mouth and nose part of a human body is better, the attaching degree of the face attaching piece and the face of the human body is higher, the comfortableness is better, and when the face attaching piece is attached to the face, the external environment can be more effectively blocked.

Description

Face attaching sheet used with mask and mask
Technical Field
The utility model relates to a mask, in particular to a face attaching piece matched with the mask and the mask, and belongs to the technical field of medical equipment.
Background
The mask is a daily article for daily use, is generally worn at the mouth and nose in a shielding mode, is used for filtering air entering the mouth and nose, and can prevent invasion of tiny microorganisms, harmful gas and smell to a certain extent. The non-exhaust valve type mask can also filter the gas exhaled by the human body and block the spray of the spray. The mask has unequal filtering effect on inhaled air due to the material composition of the mask. The mask has good protection effect when being worn in the epidemic of respiratory tract infectious diseases and in the air pollution environment. Air filtration masks are one of the most widely used. The structure of the air filtering type mask is divided into two parts, namely, a main body of the mask and a main body supporting structure of the mask; the other is a mask, which is a filtering part of the mask. How to select the mask, the dust-proof efficiency of the mask material, the attaching degree of the mask and the comfort degree of the mask hanging belt are all reference standards.
Close type arch gauze mask, in order to reach the inseparable laminating of gauze mask and people's face, applys powerful degree of tightness to the string area, and this improves the driving fit degree of gauze mask to a certain extent, but close type arch gauze mask edge has applyed powerful pressure to the facial skin of contact simultaneously, wears for a long time, and nose, facial can feel painful, has more the depth indentation that the too big pressure leads to, local skin damage even.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a face attaching piece matched with a mask and the mask, so as to overcome the defects in the prior art.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model comprises the following steps:
the embodiment of the utility model provides a face attaching piece matched with a mask for use, wherein an opening structure is arranged on the face attaching piece, the opening structure comprises a first opening structure matched with a mouth of a human body and a second opening structure matched with a nose of the human body, and the first opening structure is communicated with the second opening structure; the first opening structure is provided with a first arc-shaped contour line matched with the mouth of the human body, and the second opening structure is provided with a second arc-shaped contour line matched with the nose of the human body.
The embodiment of the utility model also provides the mask, which comprises a mask main body and the face attaching piece, wherein the face attaching piece is fixedly arranged on one side of the mask main body, the face attaching piece can be attached to the face of a human body without a gap when the mask is used, and an accommodating space capable of accommodating the mouth and the nose of the human body is formed between the face attaching piece and the mask main body.
Compared with the prior art, the face attaching piece matched with the mask provided by the embodiment of the utility model has the advantages that the adaptability of the outline of the opening structure and the outline of the mouth and nose part of a human body is better, the attaching degree of the face attaching piece and the face of the human body is higher, the comfortableness is better, and when the face attaching piece is attached to the face, the external environment can be more effectively blocked.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a face-attaching sheet used with a mask according to an exemplary embodiment of the present invention;
fig. 2 is a schematic structural view of a face-attaching sheet used with a mask according to an exemplary embodiment of the present invention.
Detailed Description
In view of the deficiencies in the prior art, the inventors of the present invention have made extensive studies and extensive practices to provide technical solutions of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.
The embodiment of the utility model provides a face attaching piece matched with a mask for use, wherein an opening structure is arranged on the face attaching piece, the opening structure comprises a first opening structure matched with a mouth of a human body and a second opening structure matched with a nose of the human body, and the first opening structure is communicated with the second opening structure; the first opening structure is provided with a first arc-shaped contour line matched with the mouth of the human body, and the second opening structure is provided with a second arc-shaped contour line matched with the nose of the human body.
In one embodiment, the first curved contour and the second curved contour are smoothly connected.
In a specific embodiment, the second arc-shaped contour line includes a nose bridge section and a nose wing section which are smoothly connected, the nose bridge section is matched with the nose bridge of the human nose and two sides of the nose bridge, and the nose wing section is matched with the nose wing of the human nose.
In a specific embodiment, the second arc-shaped contour line includes a first arc line segment, a first straight line segment, a second arc line segment, a second straight line segment and a third arc line segment, which are smoothly connected in sequence, wherein the first straight line segment, the second arc line segment and the second straight line segment are connected to form the nose bridge segment, the first arc line segment and the third arc line segment are matched with the nose wing of the human nose, the first arc line segment and the third arc line segment form the nose wing segment, the first straight line segment and the second straight line segment are respectively matched with two sides of the nose bridge of the human nose, and the second arc line segment is matched with the nose bridge of the human nose.
In a specific embodiment, the radius of curvature of the first arc segment is 28-42mm, the radius of curvature of the second arc segment is 2.4-3.6mm, and the radius of curvature of the third arc segment is 28-42 mm.
In a specific embodiment, the length of the first straight line segment is 9-13mm, and the length of the second straight line segment is 9-13 mm.
In a specific embodiment, the second arc-shaped contour line has a mirror-image symmetric structure.
In a specific embodiment, the first arc-shaped contour line includes a fourth arc segment, a fifth arc segment and a sixth arc segment, which are smoothly connected in sequence, wherein the fourth arc segment is smoothly connected with the third arc segment, and the sixth arc segment is smoothly connected with the first arc segment.
In a specific embodiment, the radius of curvature of the fourth arc segment is 35.2-52.8mm, the radius of curvature of the fifth arc segment is 66.8-100.2mm, and the radius of curvature of the sixth arc segment is 35.2-52.8 mm.
In a specific embodiment, the first arc-shaped contour line has a mirror-image symmetric structure.
In a specific embodiment, the opening structure is disposed in a first region of the face attaching sheet, and a second region of the face attaching sheet can cover the face of the human body and attach to the face of the human body without a gap, wherein the second region is distributed on two sides of the first region, or the second region is distributed around the periphery of the first region.
In a specific embodiment, the whole face attaching piece has a mirror symmetry structure.
In one embodiment, the ratio of the maximum length of the opening structure in the first direction to the maximum width of the opening structure in the second direction is 66.4-99.6: 66.8-100.2mm, wherein the first direction is parallel to a midline of the human face and perpendicular to the second direction.
In one embodiment, the face-adhering sheet is a sheet formed by laminating and bonding the facing layer, the filter layer and the surface layer in this order.
In a specific embodiment, the laminated surface layer and the surface layer are both non-woven fabrics, the filter layer comprises a polytetrafluoroethylene filter membrane, and the laminated surface layer, the filter layer and the surface layer are combined into a whole in a bonding or ultrasonic welding mode.
In a specific embodiment, the thickness of the laminated upper layer is 0.1-2mm, the thickness of the filter layer is 1-500 μm, and the thickness of the surface layer is 0.1-2.5 mm.
The embodiment of the utility model also provides the mask, which comprises a mask main body and the face attaching piece, wherein the face attaching piece is fixedly arranged on one side of the mask main body, the face attaching piece can be attached to the face of a human body without a gap when the mask is used, and an accommodating space capable of accommodating the mouth and the nose of the human body is formed between the face attaching piece and the mask main body.
In one embodiment, the outer edge of the face-attaching sheet is fixedly joined to the outer edge of the mask body.
In one embodiment, the mask body is further fixedly combined with a supporting framework, and the supporting framework is disposed on a side surface of the mask body facing the face attachment piece.
As will be described in further detail with reference to the accompanying drawings, the area of the face-adhering sheet, the ratio of the opening structure, the specific size, the material and the like in the embodiments of the present invention can be adjusted according to specific requirements, and are not limited herein.
Example 1
Referring to fig. 1, a face attachment piece 100 used in combination with a mask, a first region 110 of the face attachment piece 100 has an opening structure, and a second region 120 of the face attachment piece 100 can cover a face of a human body and attach to the face of the human body without a gap, wherein the second region 120 is distributed on two sides of the first region 110, or the second region 120 is distributed around the periphery of the first region 110;
the opening structure comprises a first opening structure 200 matched with the mouth of a human body and a second opening structure 300 matched with the nose of the human body, and the first opening structure 200 is communicated with the second opening structure 300; the first opening structure 200 has a first arc-shaped contour line 210 matched with the mouth of the human body, the second opening structure 300 has a second arc-shaped contour line 310 matched with the nose of the human body, and the first arc-shaped contour line 210 and the second arc-shaped contour line 310 are smoothly connected.
Specifically, the second arc-shaped contour line 310 includes a nose bridge section and a nose wing section which are smoothly connected, the nose bridge section is matched with the nose bridge of the human nose and two sides of the nose bridge, and the nose wing section is matched with the nose wing of the human nose.
Referring to fig. 2, the second arc-shaped contour 310 includes a first arc-shaped line segment 311, a first straight line segment 313, a second arc-shaped line segment 314, a second straight line segment 315 and a third arc-shaped line segment 317 which are smoothly connected in sequence, wherein the first straight line segment 313, the second arc-shaped line segment 314 and the second straight line segment 315 are connected to form the bridge segment, and the first arc-shaped line segment 311 and the third arc-shaped line segment 317 form the wing segment.
It can be understood that the first straight line segment 313 and the second straight line segment 315 are respectively matched with two sides of the bridge of the nose of the human body, the second arc segment 314 is matched with the bridge of the nose of the human body, and the first arc segment 311 and the third arc segment 317 are matched with the wings of the nose of the human body.
In a specific embodiment, the first arc segment 311, the second arc segment 314, and the third arc segment 317 are protruded outward in a direction away from the opening structure, and the first straight segment 313 and the second straight segment 315 may be both inclined, that is, the first straight segment 313 and the second straight segment 315 are inclined from the second arc segment 314 to both sides (outward).
In a specific embodiment, the radius of curvature of the first arc segment 311 is 28-42mm, preferably 32-38mm, the radius of curvature of the second arc segment is 2.4-3.6mm, preferably 2.8-3.2mm, the radius of curvature of the third arc segment is 28-42mm, preferably 32-38mm, the length of the first straight segment 313 is 9-13mm, and the length of the second straight segment 314 is 9-13 mm.
It should be noted that the first arc segment 311, the first straight segment 313, the second arc segment 314, the second straight segment 315, and the third arc segment 317 are smoothly connected in sequence, that is, a connection between any two of the first arc segment 311, the first straight segment 313, the second arc segment 314, the second straight segment 315, and the third arc segment 317 is smoothly connected, or is understood to be smooth.
In an embodiment, referring to fig. 2 again, the first arc segment 311 is further smoothly connected to the first straight segment 313 through the first connection segment 312, and the third arc segment 317 is further smoothly connected to the second straight segment 315 through the second connection segment 316, wherein the first connection segment 312 and the second connection segment 316 are both arc segments, and the first connection segment 312 and the second connection segment 316 are both recessed inward along a direction toward the opening structure.
In one embodiment, the radius of curvature of the first connecting section 312 is 4-6mm, and the radius of curvature of the second connecting section 316 is 4-6 mm.
In a specific embodiment, the entire second arc-shaped contour line 310 may have a mirror-image symmetric structure, and it can be understood that the second arc-shaped contour line 310 is arranged in a mirror-image symmetric manner along a first direction parallel to the center line of the human face, that is, the first arc-shaped line 311 and the third arc-shaped line 317, the first straight line 313 and the second straight line 315, and the first connecting section 312 and the second connecting section 316 are arranged in a mirror-image symmetric manner, and the lengths, the curvature radii, and the like of the first arc-shaped line 311 and the third arc-shaped line 317, the first straight line 313 and the second straight line 315, and the first connecting section 312 and the second connecting section 316 may be the same.
In a specific embodiment, the first arc-shaped contour 210 includes a fourth arc segment 212, a fifth arc segment 213 and a sixth arc segment 214, which are smoothly connected in sequence, wherein the fourth arc segment 212 is smoothly connected with the third arc segment 317, and the sixth arc segment 214 is smoothly connected with the first arc segment 311.
In one embodiment, the fourth arc segment 212, the fifth arc segment 213 and the sixth arc segment 214 are all outwardly convex in a direction away from the open structure,
in a specific embodiment, the radius of curvature of the fourth arc segment 212 is 35.2-52.8mm, preferably 40-48mm, the radius of curvature of the fifth arc segment is 66.8-100.2mm, preferably 78-88mm, and the radius of curvature of the sixth arc segment is 35.2-52.8mm, preferably 40-48 mm.
It should be noted that, the fourth arc segment 212, the fifth arc segment 213, and the sixth arc segment 214, the fourth arc segment 212, the third arc segment 317, and the sixth arc segment 214, and the first arc segment 311 are all smoothly connected, that is, the connection between the third arc segment 317, the fourth arc segment 212, the fifth arc segment 213, the sixth arc segment 214, and the first arc segment 311, which are arbitrarily connected, is smoothly transited, or is understood to be smooth.
In an embodiment, referring to fig. 2 again, the fourth arc segment 212 is further smoothly connected to the third arc segment 317 through a third connection segment 211, and the sixth arc segment 214 is further smoothly connected to the first arc segment 311 through a fourth connection segment 215, wherein the third connection segment 211 and the fourth connection segment 215 are both arc segments, and the third connection segment 211 and the fourth connection segment 215 are both recessed inward along a direction toward the opening structure.
In one embodiment, the radius of curvature of the third connecting segment 211 is 28-42mm, and the radius of curvature of the fourth connecting segment 215 is 28-42 mm.
In a specific embodiment, the first arc-shaped contour line 210 is a mirror-image symmetric structure, and it can be understood that the first arc-shaped contour line 210 is arranged in a mirror-image symmetric manner along a first direction parallel to a center line of a human face, that is, it can be understood that the third connecting section 211 and the fourth connecting section 215, and the fourth arc-shaped section 212 and the sixth arc-shaped section 214 are arranged in a mirror-image symmetric manner, and lengths, curvature radii, and the like of the third connecting section 211 and the fourth connecting section 215, and the fourth arc-shaped section 212 and the sixth arc-shaped section 214 can be the same.
In one embodiment, the face-attaching sheet 100 has an overall mirror-image symmetrical structure, and a ratio of a maximum length of the opening structure in the first direction to a maximum width of the opening structure in the second direction is 66.4-99.6: 66.8-100.2mm, wherein the first direction is parallel to a midline of the human face and perpendicular to the second direction.
It should be noted that, when the mask is worn, the face attachment sheet 100 is stretched to be partially or partially deformed or deformed, and the deformation or deformation is limited by various factors and cannot be accurately quantified, so that the limitation on the structure of the face attachment sheet 100 in the present embodiment is limited when the face attachment sheet 100 is in a relaxed state, that is, when it is not used.
In a specific embodiment, the face-adhering sheet 100 is a thin sheet formed by sequentially laminating and combining the facing layer, the filter layer and the surface layer, wherein the facing layer and the surface layer are both made of non-woven fabrics, the filter layer includes a polytetrafluoroethylene filter membrane, and the facing layer, the filter layer and the surface layer are combined into a whole by bonding or ultrasonic welding, for example, the facing layer has a thickness of 0.1-2mm, the filter layer has a thickness of 1-500 μm, and the surface layer has a thickness of 0.1-2.5 mm.
In a specific implementation manner, an embodiment of the present invention further provides a mask, which includes a mask body and the face attaching piece 100, the face attaching piece is fixedly disposed on one side of the mask body, and when the mask is used, the face attaching piece can be attached to the face of a human body without a gap, and an accommodating space capable of accommodating a mouth and a nose of the human body is further formed between the face attaching piece and the mask body.
In a specific embodiment, the outer edge of the face attachment piece is fixedly connected to the outer edge of the mask body, and of course, the mask body may be fixedly connected to a supporting framework, and the supporting framework is disposed on a side surface of the mask body facing the face attachment piece.
The face attaching piece matched with the mask provided by the embodiment of the utility model has the advantages that the adaptability of the outline of the opening structure and the outline of the mouth and nose part of a human body is better, the attaching degree of the face attaching piece and the face of the human body is higher, the comfortableness is better, and when the face attaching piece is attached to the face, the external environment can be more effectively blocked.
It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, which are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and therefore, the protection scope of the present invention is not limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (16)

1. The utility model provides a facial laminating piece that cooperation gauze mask used which characterized in that: the face fitting piece is provided with an opening structure, the opening structure comprises a first opening structure matched with the mouth of a human body and a second opening structure matched with the nose of the human body, and the first opening structure is communicated with the second opening structure; the first opening structure is provided with a first arc-shaped contour line matched with the mouth of the human body, and the second opening structure is provided with a second arc-shaped contour line matched with the nose of the human body; the first arc-shaped contour line and the second arc-shaped contour line are smoothly connected;
the second arc-shaped contour line comprises a nose bridge section and a nose wing section which are smoothly connected, the nose bridge section is matched with the nose bridge of the human nose and two sides of the nose bridge, the nose wing section is matched with the nose wing of the human nose, the second arc-shaped contour line comprises a first arc line section, a first straight line section, a second arc line section, a second straight line section and a third arc line section which are smoothly connected in sequence, the first straight line section, the second arc line section and the second straight line section are connected to form the nose bridge section, the first arc line section and the third arc line section are matched with the nose wing of the human nose, the first arc line section and the third arc line section form the nose wing section, the first straight line section and the second straight line section are respectively matched with two sides of the nose bridge of the human nose, and the second arc line section is matched with the nose bridge of the human nose.
2. The face-fitting patch of claim 1, wherein: the curvature radius of the first arc line segment is 28-42mm, the curvature radius of the second arc line segment is 2.4-3.6mm, and the curvature radius of the third arc line segment is 28-42 mm.
3. The face-fitting patch of claim 1, wherein: the length of the first straight line section is 9-13mm, and the length of the second straight line section is 9-13 mm.
4. The face-fitting patch of claim 1, wherein: the second arc-shaped contour line is of a mirror symmetry structure.
5. The face-fitting patch of claim 1, wherein: the first arc-shaped contour line comprises a fourth arc line segment, a fifth arc line segment and a sixth arc line segment which are sequentially and smoothly connected, wherein the fourth arc line segment is smoothly connected with the third arc line segment, and the sixth arc line segment is smoothly connected with the first arc line segment.
6. The face-fitting patch of claim 5, wherein: the curvature radius of the fourth arc line segment is 35.2-52.8mm, the curvature radius of the fifth arc line segment is 66.8-100.2mm, and the curvature radius of the sixth arc line segment is 35.2-52.8 mm.
7. The face-fitting patch of claim 5, wherein: the first arc-shaped contour line is of a mirror symmetry structure.
8. The face-fitting patch of claim 1, wherein: the opening structure is arranged in a first area of the face attaching piece, a second area of the face attaching piece can cover the face of a human body and is attached to the face of the human body without a gap, wherein the second area is distributed on two sides of the first area, or the second area is distributed around the periphery of the first area.
9. The face-fitting patch of claim 8, wherein: the whole face attaching piece is of a mirror symmetry structure.
10. The face-fitting patch of claim 8, wherein: the ratio of the maximum length of the opening structure in the first direction to the maximum width of the opening structure in the second direction is 66.4-99.6: 66.8-100.2mm, wherein the first direction is parallel to a midline of the human face and perpendicular to the second direction.
11. The face-fitting patch of claim 1, wherein: the face attaching sheet is a thin sheet formed by sequentially laminating and combining an attaching surface layer, a filtering layer and a surface layer.
12. The face-fitting patch of claim 11, wherein: the laminated surface layer and the surface layer are both non-woven fabrics, the filter layer comprises a polytetrafluoroethylene filter membrane, and the laminated surface layer, the filter layer and the surface layer are combined into a whole in a bonding or ultrasonic welding mode.
13. The face-fitting panel of claim 11, wherein: the thickness of the laminated surface layer is 0.1-2mm, the thickness of the filter layer is 1-500 mu m, and the thickness of the surface layer is 0.1-2.5 mm.
14. A mask comprising a mask body and a face attachment piece according to any one of claims 1 to 13, wherein the face attachment piece is fixedly disposed on one side of the mask body, and when the mask is used, the face attachment piece can be attached to the face of a human body without a gap, and an accommodating space for accommodating the mouth and the nose of the human body is formed between the face attachment piece and the mask body.
15. The mask of claim 14 wherein: the outer edge of the face attaching piece is fixedly combined with the outer edge of the mask body.
16. The mask of claim 14 wherein: the mask body is fixedly combined with a supporting framework, and the supporting framework is arranged on one side surface of the mask body facing the face attaching piece.
CN202122020679.9U 2021-08-25 2021-08-25 Face attaching sheet used with mask and mask Active CN216453485U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122020679.9U CN216453485U (en) 2021-08-25 2021-08-25 Face attaching sheet used with mask and mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122020679.9U CN216453485U (en) 2021-08-25 2021-08-25 Face attaching sheet used with mask and mask

Publications (1)

Publication Number Publication Date
CN216453485U true CN216453485U (en) 2022-05-10

Family

ID=81431955

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122020679.9U Active CN216453485U (en) 2021-08-25 2021-08-25 Face attaching sheet used with mask and mask

Country Status (1)

Country Link
CN (1) CN216453485U (en)

Similar Documents

Publication Publication Date Title
CN202682595U (en) Protective mask
CN207411534U (en) A kind of high adhesion haze-proof mask
CN216453485U (en) Face attaching sheet used with mask and mask
CN213247062U (en) Mask with good leakproofness
CN210747406U (en) Mask fixing structure and mask
CN213881878U (en) Mouth and nose gas separation type mask
CN212814487U (en) Silicone gel sealing mask
CN212234927U (en) Eye protection glasses
CN213344433U (en) Self-adaptation bridge of nose gauze mask support and gauze mask
CN211241830U (en) Double-filter-element protective mask
CN210809403U (en) Nose and face paster used for matching with disposable mask
CN211882327U (en) Mask
CN213908620U (en) Mask capable of avoiding direct contact with face
CN213344419U (en) Face-fitting mask
CN213639743U (en) High-air-tightness mask
CN218127093U (en) Antifog disposable mask
CN2623270Y (en) Shaped respirator for insulation
CN2598580Y (en) Ultrathin dust-proof anti-toxin breathing mask
CN213463891U (en) Gauze mask strutting arrangement
TWI752714B (en) long-path diversion mask
CN217184932U (en) A facial laminating circle and respirator for respirator is last
CN215013792U (en) Visual gauze mask of lip convenient to deaf-mute exchanges
CN213215472U (en) Dust mask for environmental sanitation
CN215936369U (en) Mask fastening ring
CN213487037U (en) Multi-cavity filtering protective mask

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant