Mask face fitting piece and mask

Abstract

The utility model discloses a mask face fitting piece and a mask. An opening structure matched with the mouth and nose of the human body is formed in the mask face attaching piece, and the contour line of the opening structure comprises a first arc line section, a first straight line section, a second arc line section, a third arc line section, a fourth arc line section, a fifth arc line section, a sixth arc line section, a seventh arc line section, a second straight line section and an eighth arc line section which are sequentially connected end to end. The first arc segment, the first linear segment, the second arc segment, the eighth arc segment, the second linear segment and the seventh arc segment enclose to form a first opening part, and the third arc segment and the sixth arc segment enclose to form a second opening part. A third opening part is defined between the fourth arc section and the fifth arc section, and the first opening part, the second opening part and the third opening part are communicated in sequence and jointly form the opening structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of mask face adhesion piece and mask, belong to health protection article technical field. BACKGROUND

[0002] Mask is a kind of daily life supplies, generally refers to the occlusion type worn in oral-nasal region, for filtering into the air of oral-nasal, can block the invasion of small microorganism, harmful gas, smell to a certain extent.Non-exhaust valve type mask can also filter the gas exhaled by human body, and block the spray of droplet.Masks have good protective effect when respiratory infectious disease prevails, and when in air pollution environment.Most widely used is air filter type mask.The structure of air filter type mask should be divided into two parts, one is the main body of mask, which is the main support structure of mask, and the other is mask, which is the filtering part of mask.

[0003] Mask wants to achieve protective effect first to ensure the air tightness of mask, i.e.the edge of mask is matched with the shape of human face, to prevent environmental gas from entering the mask through the gap between mask and face, at present, most support type masks adopt the mode of setting face adhesion piece to improve the adhesion effect with human face, but the mask based on setting face adhesion piece has high air leakage due to the reason of its own structure design when realizing the requirement of air permeability, thereby affecting its protective effect. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a mask face adhesion piece and mask, so as to overcome the deficiencies in the prior art.

[0005] To achieve the foregoing utility model purposes, the utility model adopts the technical scheme comprising:

[0006] The first aspect of the utility model embodiment provides a mask face adhesion piece, the mask face adhesion piece is provided with an opening structure matched with human oral-nasal region, the contour line of the opening structure comprises first arc segment, first straight line segment, second arc segment, third arc segment, fourth arc segment, fifth arc segment, sixth arc segment, seventh arc segment, second straight line segment and eighth arc segment connected in sequence, the first arc segment and the eighth arc segment have a first connecting point, the fourth arc segment and the fifth arc segment have a second connecting point, the first line segment connecting the first connecting point and the second connecting point is the axis of symmetry of the contour line,

[0007] The first arc segment, the first straight line segment, the second arc segment, the third arc segment, and the fourth arc segment are respectively in one-to-one correspondence with the eighth arc segment, the second straight line segment, the seventh arc segment, the sixth arc segment, and the fifth arc segment, and are respectively arranged in mirror symmetry relative to the symmetry axis;

[0008] The first arc segment, the first straight line segment, the second arc segment, the eighth arc segment, the second straight line segment, and the seventh arc segment form a first opening part, the third arc segment and the sixth arc segment form a second opening part, and the fourth arc segment and the fifth arc segment form a third opening part, the first opening part, the second opening part, and the third opening part are sequentially communicated and jointly form the opening structure; wherein the width of the first opening part in the first direction gradually increases along the second direction, the width of the second opening part in the first direction gradually increases and then gradually decreases along the second direction, and the width of the third opening part in the first direction gradually decreases along the second direction.

[0009] The first direction and the second direction are perpendicular, and the second direction is a direction from the first connecting point to the second connecting point.

[0010] The second aspect of the embodiment of the utility model provides a mask, including mask body and face adhesion piece, face adhesion piece fixedly arranged in one side of mask body, when mask is used, face adhesion piece can be pasted with human face, and still form the accommodation space of accommodating human oral cavity part between face adhesion piece and mask body, wherein, face adhesion piece is the mask face adhesion piece.

[0011] Compared with the prior art, the advantages of the utility model include: the mask face adhesion piece provided by the embodiment of the utility model optimizes the contour of the opening structure, improves the adhesion effect of the mask face adhesion piece and the face of the wearer, and further improves the tightness of the mask using the mask face adhesion piece when worn. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0013] Fig. 1 It is the contour structure schematic view of the opening structure of the mask face adhesion piece provided in a typical embodiment case of the utility model.

[0014] Fig. 2 is a profile structure schematic diagram of an opening structure of a mask face-adhesion piece provided in a typical embodiment case of the utility model;

[0015] Fig. 3 is a profile structure schematic diagram of an opening structure of a mask face-adhesion piece provided in a typical embodiment case of the utility model. DETAILED DESCRIPTION

[0016] In view of the deficiencies in the prior art, the present inventors have, through long-term research and a large amount of practice, been able to propose the technical solution of the utility model. The technical solution, its implementation process and principles will be further explained and described as follows.

[0017] A first aspect of the utility model embodiment provides a mask face-adhesion piece, an opening structure that is adapted to the human oral-nasal part is formed on the mask face-adhesion piece, and the profile line of the opening structure comprises a first arc segment, a first straight segment, a second arc segment, a third arc segment, a fourth arc segment, a fifth arc segment, a sixth arc segment, a seventh arc segment, a second straight segment and an eighth arc segment that are sequentially connected end to end, the first arc segment and the eighth arc segment have a first connecting point therebetween, the fourth arc segment and the fifth arc segment have a second connecting point therebetween, and a first line segment connecting the first connecting point and the second connecting point is the axis of symmetry of the profile line,

[0018] The first arc segment, the first straight segment, the second arc segment, the third arc segment and the fourth arc segment correspond one to one to the eighth arc segment, the second straight segment, the seventh arc segment, the sixth arc segment and the fifth arc segment respectively, and are respectively arranged in mirror symmetry with respect to the axis of symmetry;

[0019] The first arc segment, the first straight segment, the second arc segment, the eighth arc segment, the second straight segment and the seventh arc segment enclose a first opening part, the third arc segment and the sixth arc segment enclose a second opening part, the fourth arc segment and the fifth arc segment enclose a third opening part, and the first opening part, the second opening part and the third opening part are sequentially communicated and jointly form the opening structure; wherein the width of the first opening part in a first direction gradually increases along a second direction, the width of the second opening part in the first direction gradually increases along the second direction first and then gradually decreases, and the width of the third opening part in the first direction gradually decreases along the second direction.

[0020] The first direction and the second direction are perpendicular, and the second direction is the direction from the first connecting point to the second connecting point.

[0021] Further, the first arc segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, and the eighth arc segment are all arc segments protruding from the opening structure to the peripheral region.

[0022] Further, the first arc segment and the eighth arc segment have equal radii of curvature and arc lengths, the second arc segment and the seventh arc segment have equal radii of curvature and arc lengths, the third arc segment and the sixth arc segment have equal radii of curvature and arc lengths, the fourth arc segment and the fifth arc segment have equal radii of curvature and arc lengths, and the first straight segment and the second straight segment have equal lengths.

[0023] Further, the first arc segment and the eighth arc segment have a radius of curvature of 45 mm, the first straight segment and the second straight segment have a length of 50 mm, the second arc segment and the seventh arc segment have a radius of curvature of 500 mm, the third arc segment and the sixth arc segment have a radius of curvature of 560 mm, and the fourth arc segment and the fifth arc segment have a radius of curvature of 750 mm.

[0024] Further, the first straight segment and the first line segment form a first included angle a of 64°, the third arc segment and the fourth arc segment form a connection point which is a fifth connection point, and a second line segment connecting the fifth connection point and the second connection point forms a second included angle β of 62° with the first line segment.

[0025] Further, the first arc segment, the first straight segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight segment, and the eighth arc segment have a length ratio of 49:2614:1300:5975:3062:3062:5975:1300:2614:49 in the width direction of the opening structure.

[0026] The first arc segment, the first straight segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight segment, and the eighth arc segment have a length ratio of 294:4628:5966:995:5731:5731:995:5966:4628:294 in the length direction of the opening structure.

[0027] The length direction of the opening structure is the extension direction of the symmetry axis of the opening structure, and the width direction is perpendicular to the length direction.

[0028] In a more specific embodiment, the length of the opening structure is 1300 mm, the width is 1345.2 mm, the length of the first arc segment, the first straight line segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight line segment, and the eighth arc segment in the positive projection along the width direction of the opening structure are 4.9 mm, 261.4 mm, 130.0 mm, 597.5 mm, 306.2 mm, 306.2 mm, 597.5 mm, 130.0 mm, 261.4 mm, and 4.9 mm, respectively, and the ratio of the lengths of the first arc segment, the first straight line segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight line segment, and the eighth arc segment in the positive projection along the length direction of the opening structure is 29.4 mm, 462.8 mm, 596.6 mm, 99.5 mm, 573.1 mm, 573.1 mm, 99.5 mm, 596.6 mm, 462.8 mm, and 29.4 mm.

[0029] Further, the maximum width of the second opening part > the maximum width of the first opening part > the maximum width of the third opening part, and the maximum length of the second opening part > the maximum length of the first opening part > the maximum length of the third opening part.

[0030] Further, the maximum width of the first opening part is 1196.2 mm, the maximum width of the second opening part is 1345.2 mm, the maximum width of the third opening part is 1146.2 mm, the maximum length of the first opening part is 396.3 mm, the maximum length of the second opening part is 597.5 mm, and the maximum length of the third opening part is 306.2 mm.

[0031] Further, the first arc segment, the first straight line segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight line segment, and the eighth arc segment are smoothly connected.

[0032] Further, the mask face-adhering sheet is a sheet formed by sequentially laminating and combining a surface-adhering layer, a filtering layer, and a surface layer, wherein the surface-adhering layer and the surface layer are both non-woven fabrics, the filtering layer includes a polytetrafluoroethylene filtering membrane, the thickness of the surface-adhering layer is 0.1-2 mm, the thickness of the filtering layer is 1-500 μm, and the thickness of the surface layer is 0.1-2.5 mm.

[0033] The utility model discloses an embodiment of the second aspect provides a gauze mask, including gauze mask body and face adhesion piece, face adhesion piece fixed setting in one side of gauze mask body, when gauze mask is used, face adhesion piece can be in close contact with human face, and still form the accommodation space of accommodating human mouth and nose between face adhesion piece and gauze mask body, wherein, face adhesion piece is the gauze mask face adhesion piece.

[0034] The technical scheme, its implementation process and principles are further explained and described below in combination with the drawings and specific implementation cases. Unless specifically stated, the material and processing technology of the gauze mask face adhesion piece and each component constituting the gauze mask in the embodiments of the utility model are known in the art, and are not specifically limited and described here.

[0035] In a more typical implementation case, please refer to Figs. 1-3 A gauze mask face adhesion piece is provided, and an opening structure adapted to the mouth and nose of a human body is formed on the gauze mask face adhesion piece. The contour line of the opening structure comprises a first arc segment 101, a first straight line segment 102, a second arc segment 103, a third arc segment 104, a fourth arc segment 105, a fifth arc segment 106, a sixth arc segment 107, a seventh arc segment 108, a second straight line segment 109, and an eighth arc segment 110, which are sequentially connected end to end. The first arc segment 101, the first straight line segment 102, the second arc segment 103, the eighth arc segment 110, the second straight line segment 109, and the seventh arc segment 108 form a first opening part 111. The third arc segment 104 and the sixth arc segment 107 form a second opening part 112. The fourth arc segment 105 and the fifth arc segment 106 form a third opening part 113. The first opening part 111, the second opening part 112, and the third opening part 113 are sequentially connected and jointly form the opening structure.

[0036] Specifically, the intersection of the first arc segment 101 and the eighth arc segment 110 is a first connecting point A1, the intersection of the fourth arc segment 105 and the fifth arc segment 106 is a second connecting point A2, the intersection of the second arc segment 103 and the third arc segment 104 is a third connecting point A3, the intersection of the sixth arc segment 107 and the seventh arc segment 108 is a fourth connecting point A4, the intersection of the third arc segment 104 and the fourth arc segment 105 is a fifth connecting point A5, and the intersection of the fifth arc segment 106 and the sixth arc segment 107 is a sixth connecting point A6. A first line segment connecting the first connecting point A1 and the second connecting point A2 is an axis of symmetry of the contour line. Specifically, the first arc segment 101, the first straight line segment 102, the second arc segment 103, the third arc segment 104, and the fourth arc segment 105 correspond to the eighth arc segment 110, the second straight line segment 109, the seventh arc segment 108, the sixth arc segment 107, and the fifth arc segment 106, respectively, and are arranged in mirror symmetry with respect to the axis of symmetry. It can be understood that the first arc segment 101 and the eighth arc segment 110 have equal radii of curvature and arc lengths, the first straight line segment 102 and the second straight line segment 109 have equal lengths, the second arc segment 103 and the seventh arc segment 108 have equal radii of curvature and arc lengths, the third arc segment 104 and the sixth arc segment 107 have equal radii of curvature and arc lengths, and the fourth arc segment 105 and the fifth arc segment 106 have equal radii of curvature and arc lengths.

[0037] More specifically, the line connecting the third connecting point A3 and the fourth connecting point A4 is parallel to the line connecting the fifth connecting point A5 and the sixth connecting point A6, and the line connecting the third connecting point A3 and the fourth connecting point A4 is perpendicular to the axis of symmetry of the opening structure. The direction in which the first connecting point A1 points to the second connecting point A2 is a second direction, i.e., the length direction of the opening structure, and the first direction is parallel to the extension direction of the line connecting the third connecting point A3 and the fourth connecting point A4, i.e., the width direction of the opening structure.

[0038] Specifically, the first arc segment 101, the first straight segment 102, the second arc segment 103, the third arc segment 104, the fourth arc segment 105, the fifth arc segment 106, the sixth arc segment 107, the seventh arc segment 108, the second straight segment 109 and the eighth arc segment 110 are smoothly connected, the first arc segment 101, the second arc segment 103, the third arc segment 104, the fourth arc segment 105, the fifth arc segment 106, the sixth arc segment 107, the seventh arc segment 108 and the eighth arc segment 110 are all arc segments protruding from the opening structure to the peripheral region, the maximum width W2 of the second opening part 112 is greater than the maximum width W1 of the first opening part 111, which is greater than the maximum width W3 of the third opening part 113, and the maximum length L2 of the second opening part 112 is greater than the maximum length L1 of the first opening part 111, which is greater than the maximum length L3 of the third opening part 113. More specifically, the maximum width of the first opening part 111 is the straight-line distance between the third connecting point A3 and the fourth connecting point A4, the maximum width of the second opening part 112 is the maximum straight-line distance between the third arc segment 104 and the sixth arc segment 107, and the maximum width of the third opening part 113 is the straight-line distance between the fifth connecting point A5 and the sixth connecting point A6.

[0039] Specifically, the length L of the opening structure is 1300 mm, the width is 1345.2 mm, the radius of curvature of the first arc segment 101 and the eighth arc segment 110 is 45 mm, the length of the first straight segment 102 and the second straight segment 109 is 50 mm, the radius of curvature of the second arc segment 103 and the seventh arc segment 108 is 500 mm, the radius of curvature of the third arc segment 104 and the sixth arc segment 107 is 560 mm, the radius of curvature of the fourth arc segment 105 and the fifth arc segment 106 is 750 mm, the first included angle α between the first straight segment 102 and the first line segment is 64°, similarly, the included angle between the first straight segment 102 and the first line segment is also 64°, the second included angle β between the second line segment connecting the fifth connecting point A5 and the second connecting point A2 and the first line segment is 62°, and similarly, the included angle between the line connecting the sixth connecting point A6 and the second connecting point A2 and the first line segment is also 62°,

[0040] The length of the orthographic projection of the first arc segment 101, the first straight line segment 102, the second arc segment 103, the third arc segment 104, the fourth arc segment 105, the fifth arc segment 106, the sixth arc segment 107, the seventh arc segment 108, the second straight line segment 109, and the eighth arc segment 110 along the width direction of the opening structure is respectively 4.9mm, 261.4mm, 130.0mm, 597.5mm, 306.2mm, 306.2mm, 597.5mm, 130.0mm, 261.4mm, and 4.9mm, and the ratio of the length of the orthographic projection of the first arc segment 101, the first straight line segment 102, the second arc segment 103, the third arc segment 104, the fourth arc segment 105, the fifth arc segment 106, the sixth arc segment 107, the seventh arc segment 108, the second straight line segment 109, and the eighth arc segment 110 along the length direction of the opening structure is 29.4mm, 462.8mm, 596.6mm, 99.5mm, 573.1mm, 573.1mm, 99.5mm, 596.6mm, 462.8mm, and 29.4mm, the maximum width of the first opening part 111 is 1196.2mm, the maximum width of the second opening part 112 is 1345.2mm, the maximum width of the third opening part 113 is 1146.2mm, the length of the first opening part 111 is 396.3mm, the length of the second opening part 112 is 597.5mm, and the length of the third opening part 113 is 306.2mm.

[0041] The mask face attaching piece provided by the embodiment of the utility model optimizes the contour of the opening structure, improves the attaching effect of the mask face attaching piece and the face of the wearer, and further improves the tightness of the mask using the mask face attaching piece when worn. Through detection, the maximum leakage of the mask using the mask face attaching piece is only 1.2%.

[0042] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A face mask fitting piece, wherein the face mask fitting piece has an opening structure adapted to fit the mouth and nose of a human body, characterized in that: The outline of the opening structure includes a first arc segment, a first straight line segment, a second arc segment, a third arc segment, a fourth arc segment, a fifth arc segment, a sixth arc segment, a seventh arc segment, a second straight line segment, and an eighth arc segment connected end to end. The first arc segment and the eighth arc segment have a first connection point, and the fourth arc segment and the fifth arc segment have a second connection point. The first line segment connecting the first connection point and the second connection point serves as the axis of symmetry of the outline. The first arc segment, the first straight line segment, the second arc segment, the third arc segment, and the fourth arc segment correspond one-to-one with the eighth arc segment, the second straight line segment, the seventh arc segment, the sixth arc segment, and the fifth arc segment, respectively, and are respectively arranged in a mirror symmetric manner with respect to the axis of symmetry; The first arc segment, the first straight line segment, the second arc segment, the eighth arc segment, the second straight line segment, and the seventh arc segment enclose a first opening; the third arc segment and the sixth arc segment enclose a second opening; and the fourth arc segment and the fifth arc segment enclose a third opening. The first opening, the second opening, and the third opening are sequentially connected and together form the opening structure. The width of the first opening in the first direction gradually increases along the second direction; the width of the second opening in the first direction first gradually increases and then gradually decreases along the second direction; and the width of the third opening in the first direction first gradually decreases along the second direction. The first direction and the second direction are perpendicular, and the second direction is the direction from the first connection point to the second connection point.

2. The face mask fitting piece according to claim 1, characterized in that: The first arc segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, and the eighth arc segment are all arc segments that protrude from the opening structure to the outer region.

3. The face mask fitting piece according to claim 1 or 2, characterized in that: The first arc segment has the same radius of curvature and arc length as the eighth arc segment; the second arc segment has the same radius of curvature and arc length as the seventh arc segment; the third arc segment has the same radius of curvature and arc length as the sixth arc segment; the fourth arc segment has the same radius of curvature and arc length as the fifth arc segment; and the first straight line segment and the second straight line segment have the same length.

4. The face mask fitting piece according to claim 3, characterized in that: The first arc segment and the eighth arc segment have a radius of curvature of 45 mm, the first straight segment and the second straight segment have a length of 50 mm, the second arc segment and the seventh arc segment have a radius of curvature of 500 mm, the third arc segment and the sixth arc segment have a radius of curvature of 560 mm, and the fourth arc segment and the fifth arc segment have a radius of curvature of 750 mm.

5. The face mask fitting piece according to claim 1 or 2, characterized in that: The first angle α between the first straight line segment and the first line segment is 64°. The connection point between the third arc segment and the fourth arc segment is the fifth connection point. The second angle β between the second line segment connecting the fifth connection point and the second connection point and the first line segment is 62°.

6. The face mask fitting piece according to claim 1, characterized in that: The ratio of the lengths of the orthographic projections of the first arc segment, the first straight line segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight line segment, and the eighth arc segment along the width direction of the opening structure is 49:2614:1300:5975:3062:3062:5975:1300:2614:

49. The ratio of the lengths of the orthographic projections of the first arc segment, the first straight line segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight line segment, and the eighth arc segment along the length direction of the opening structure is 294:4628:5966:995:5731:5731:995:5966:4628:294; The length direction of the opening structure is the extension direction of the axis of symmetry of the opening structure, and the width direction is perpendicular to the length direction.

7. The face mask fitting piece according to claim 6, characterized in that: The opening structure has a length of 1300 mm and a width of 1345.2 mm. The orthographic projections of the first arc segment, the first straight segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight segment, and the eighth arc segment along the width direction of the opening structure are 4.9 mm, 261.4 mm, 130.0 mm, 597.5 mm, 306.2 mm, 306.2 mm, 597.5 mm, 130.0 mm, 261.4 mm, and 4.9 mm, respectively. The ratios of the orthographic projection lengths of the first arc segment, the first straight segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight segment, and the eighth arc segment along the length direction of the opening structure are 29.4 mm, 462.8 mm, 596.6 mm, and 99.5 mm, respectively. mm, 573.1 mm, 573.1 mm, 99.5 mm, 596.6 mm, 462.8 mm, 29.4 mm.

8. The face mask fitting piece according to claim 7, characterized in that: The maximum width of the second opening is greater than the maximum width of the first opening, which is greater than the maximum width of the third opening. The maximum length of the second opening is greater than the maximum length of the first opening, which is greater than the maximum length of the third opening.

9. The face mask fitting piece according to claim 8, characterized in that: The maximum width of the first opening is 1196.2 mm, the maximum width of the second opening is 1345.2 mm, the maximum width of the third opening is 1146.2 mm, the maximum length of the first opening is 396.3 mm, the maximum length of the second opening is 597.5 mm, and the maximum length of the third opening is 306.2 mm.

10. The face mask fitting piece according to claim 1, characterized in that: The first arc segment, the first straight line segment, the second arc segment, the third arc segment, the fourth arc segment, the fifth arc segment, the sixth arc segment, the seventh arc segment, the second straight line segment, and the eighth arc segment are smoothly connected.

11. The face mask fitting piece according to claim 1, characterized in that: The face mask is a thin sheet formed by sequentially stacking a face layer, a filter layer, and a surface layer. The face layer and the surface layer are both non-woven fabrics, the filter layer includes a polytetrafluoroethylene filter membrane, the thickness of the face layer is 0.1mm-2mm, the thickness of the filter layer is 1μm-500μm, and the thickness of the surface layer is 0.1mm-2.5mm.

12. A face mask, comprising a mask body and a face-fitting piece, the face-fitting piece being fixedly disposed on one side of the mask body, wherein when the mask is used, the face-fitting piece can fit against a human face, and a receiving space for accommodating a human mouth and nose is formed between the face-fitting piece and the mask body, characterized in that: The facial fitting piece is the facial fitting piece for a mask as described in any one of claims 1-11.

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