CN115212482A

CN115212482A - Nose cover and oronasal mask thereof

Info

Publication number: CN115212482A
Application number: CN202210907066.3A
Authority: CN
Inventors: 林励章
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-10-21

Abstract

The invention relates to the technical field of air filtration, and provides a nose-mouth mask and a nose mask matched with the same for use. The nose cup includes that nose cup body and holding are in supporter in the nose cup body, and the centre gripping is in the nose cup body with filter between the supporter, inlay in the nose cup body and be equipped with at least one first permanent magnet, inlay in the supporter and be equipped with corresponding at least one second permanent magnet of at least one first permanent magnet, make the supporter passes through magnetism and inhales effect detachably attach in the nose cup body, also can be in response to the magnetic attraction effect of above-mentioned nose cup body and above-mentioned supporter body, not only can stabilize above-mentioned filter, also can dismantle easily and change above-mentioned filter. The oronasal mask comprises the nasal mask and a mask detachably mounted on the nasal mask, and the mask is detachably attached to the nasal mask through magnetic attraction.

Description

Nose cover and oronasal mask thereof

Technical Field

The invention relates to the technical field of air filtration, in particular to a nose mask and an oronasal mask thereof.

Background

At present, the known protective mask is an ear-hanging mask or a full face mask, and is usually worn at the mouth and nose part to filter air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer. The existing mask covers the mouth and the nose at the same time, conversation is influenced, and the mask is large in area, large in material waste during replacement, uncomfortable and easy to breed bacteria.

Disclosure of Invention

In view of the above, the present invention is directed to a nose mask and an oronasal mask having the same that can solve the above problems.

To this end, the invention provides a nose mask, which comprises a nose mask body, a support body accommodated in the nose mask body and a filter body clamped between the nose mask body and the support body, wherein at least one first permanent magnet is embedded in the nose mask body, and at least one second permanent magnet corresponding to the at least one first permanent magnet is embedded in the support body, so that the support body is detachably attached in the nose mask body through magnetic attraction.

In some embodiments, the mask body includes a first body portion and a first extension portion extending from an outer periphery of the first body portion, the support body is received in a first receiving cavity surrounded by the first body portion and the first extension portion, and the first body portion is provided with a plurality of first through holes.

In some embodiments, the at least one first permanent magnet is provided in the first body part by means of insert molding.

In some embodiments, the support body includes a second body portion and a second extension portion extending from an outer periphery of the second body portion, and the second body portion is provided with a plurality of second through holes corresponding to the plurality of first through holes.

In some embodiments, the at least one second permanent magnet is disposed in the second body portion by insert molding.

In some embodiments, the support body is provided with a nasal mask seal disposed on a side of the second extension portion remote from the second body portion.

In some embodiments, the nose cup sealing portion is provided with a first curved surface fitting portion adapted to the shape of the face of the user, and a first protrusion disposed inside the first curved surface fitting portion.

In some embodiments, a mask is removably attached to the nose piece by magnetic attraction, the mask having at least one third permanent magnet disposed therein corresponding to the at least one first permanent magnet.

The invention also provides an oronasal mask, which comprises a nasal mask and a mask detachably mounted on the nasal mask, wherein the nasal mask is the nasal mask, and the mask is detachably attached to the nasal mask through a magnetic attraction effect; the air inlet surface of the mask positioned on the nose mask body (20) is provided with a third through hole for air inlet of the mask, and the outer surface of the nose mask body (20) at the position is attached to the inner side surface of the mask and keeps sealed.

In some embodiments, the mask is provided at an inner side thereof with a partition extending vertically inward to partition a receiving space of the mask into upper and lower receiving cavities separated from each other, and the nose mask is engaged in the upper receiving cavity.

In some embodiments, a sealing ring is arranged between the air inlet surface of the nose mask body and the inner side surface of the mask, and the air tightness between the nose mask and the mask is kept by pressing the sealing ring after the nose mask and the mask are attached through magnetic attraction.

In some embodiments, a one-way valve for exhausting gas and/or an exhaust device capable of forming negative pressure in the receiving cavity are arranged in the lower receiving cavity.

The oronasal mask provided by the invention is low in cost and convenient for users to use, and the mask and the nasal mask are detachably connected, so that the users can conveniently wear the nasal mask and the mouth mask simultaneously and wear the nasal mask separately, and the oronasal mask is suitable for different use environments.

Drawings

Figure 1 illustrates a perspective view of an oronasal mask according to one embodiment of the present invention.

Figure 2A shows an exploded view of the oronasal mask of figure 1.

Figure 2B illustrates an exploded view of the oronasal mask of figure 1 in another orientation.

Figure 3 illustrates an exploded view of the nasal mask of the oronasal mask of figure 1.

Figure 4A illustrates an exploded view of the mask of the oronasal mask of figure 1.

Figure 4B illustrates an exploded view of the mask of the oronasal mask of figure 1 in another orientation.

Reference numerals: 100-oronasal mask; 2-a nose mask; 20-a mask body; 201-a support; 202-a cover; 203-a first body portion; 204-a first extension; 205-a first via; 206-ribs; 207-second via; 208-a second extension; 209-a second body portion; 21-a nose cup sealing part; 210-a first curved surface attachment; 211-a first laminating portion; 212-a second fit; 213-third fitting part; 214-a first projection; 22-a connecting portion; 23-a first housing chamber; 24-a first permanent magnet; 25-a second permanent magnet; 26-a filter body; 27-a second housing chamber; 28-a flange; 1-mask; 10-mask body; 101-a third body portion; 102-a third extension; 103-a third via; 104-flanging; 11-mask sealing part; 110-a second curved surface attachment portion; 111-a fourth laminating portion; 112-fifth attaching part; 113-a sixth bonding portion; 114-a second protrusion; 12-a separator; 13-a third containing cavity; 131-a wall portion; 14-a fourth containing cavity; 15-a third permanent magnet; 16-accommodation space.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings and detailed description, so as to make the technical solutions and the advantages of the present invention more clear. It is to be understood that the drawings are provided for purposes of illustration and description only and are not intended as a definition of the limits of the invention, but are drawn to scale.

Referring also to FIGS. 1-2B, an oronasal mask 100 in accordance with one embodiment of the present invention is shown. The oronasal mask 100 includes an oral mask 1 and a nasal mask 2. The mask 1 is detachably mounted on the nose mask 2. In other words, the mask 1 detachably receives the nose mask 2. In this embodiment, the mask 1 is attached to the nose mask 2 by magnetic attraction. The mask 1 is used to block contaminants or pathogens, etc. from entering the mouth of a user. The nose mask 2 serves to filter air inhaled from the nose. After a user wears the oronasal mask 100, air inhaled from the nose passes through the mask 1 and is filtered by the nasal mask 2 to be inhaled from the nose of the user; when the user needs to talk, eat, drink water and the like, the mask 1 can be detached and only the nose mask 2 is worn, so that the user can conveniently carry out the activities and the respiratory protection is ensured.

Referring to fig. 2A to 3 together, the nose mask 2 includes a mask body 20 and a support 201 received in the mask body 20, and a filter 26 interposed between the mask body 20 and the support 201. The support 201 is attached in the mask body 20 by magnetic attraction. The mask body 20 includes a mask body 202 and two connecting portions 22 symmetrically disposed at both sides of the mask body 202. An attachment (not shown) may be attached to the two connecting portions 22 to secure the mask body 202 of the nasal mask 2 at the nose of the user. The cover 202 is made of a hard glue material. The cover 202 includes a first body portion 203 and a first extension portion 204 extending from an outer periphery of the first body portion 203. The first body portion 203 and the first extension portion 204 enclose a first receiving cavity 23 with the first body portion 203 as a top and the first extension portion 204 as a side for receiving the supporting body 201. The two connecting portions 22 are disposed on both sides of the first extension portion 204. The first body portion 203 is provided with a plurality of first through holes 205. The plurality of first through holes 205 correspond to the noses of the user. At least one first permanent magnet 24 is disposed in the first body portion 203. Preferably, the at least one first permanent magnet 24 comprises two first permanent magnets. In the present embodiment, two first permanent magnets 24 are symmetrically disposed on both sides of the region where the plurality of first through holes 205 are located. In the present embodiment, the at least one first permanent magnet 24 is molded in the first body portion 203 by means of insert molding.

The support body 201 of the nasal mask 2 is attached to the first body portion 203 of the nasal mask body 20 by magnetic attraction. Specifically, at least one second permanent magnet 25 corresponding to the at least one first permanent magnet 24 is disposed in the support body 201. In the present embodiment, the at least one second permanent magnet 25 is molded in the support body 201 by means of insert molding.

Preferably, the supporting body 201 includes a second body portion 209 and a second extending portion 208 extending from the outer periphery of the second body portion 209. The second body 209 is provided with a plurality of second through holes 207. The second through hole 207 corresponds to the nose of the user, and is disposed in the second body 209 corresponding to the area occupied by the plurality of first through holes 205. The at least one second permanent magnet 25 is disposed in the second body portion 209. Preferably, the at least one second permanent magnet 25 comprises two second permanent magnets. In the present embodiment, the two second permanent magnets 25 are symmetrically disposed at both sides of the area where the plurality of second through holes 207 are located. The spaced second through holes 207 form ribs 206 between each other for supporting the filter body 26. When the support body 201 is engaged in the mask body 202 of the mask body 20 under the magnetic attraction between the at least one second permanent magnet 25 and the at least one first permanent magnet 24, the filter body 26 is sandwiched between the support body 201 and the mask body 202 and covers the plurality of first through holes 205 and the plurality of second through holes 207. Therefore, the user can conveniently replace the filter body 26, and the filter body 26 can not be displaced or even fall off, thereby ensuring the stability of the structure. In this embodiment, the filter body 26 is also clamped between the at least one first permanent magnet 24 and the at least one second permanent magnet 25 to further prevent displacement of the filter body 26.

In this embodiment, the second extension portion 208 extends in a substantially outward-expanding shape, so that the filter 26 is away from the end of the second extension portion 208 by a certain distance, which prevents the filter 26 from directly contacting the nose of the user, effectively prevents nasal mucus or facial grease, dandruff, etc. from affecting the filter 26, ensures the filtering effect of the oronasal mask 100, and can prevent the influence of bacterial growth on the facial skin. In this embodiment, the filter 26 is a medical or sanitary non-woven fabric, which is a new generation of environmental protection material, and has the advantages of good strength, air permeability, water resistance, environmental protection, flexibility, no toxicity, no odor, low price, no irritation, etc. The filter 26 can effectively filter air, toxic gas, PM2.5, bacteria and viruses, pollen, haze, dust and the like.

The support body 201 is provided with a nose cup sealing portion 21 provided on a side of the second extending portion 208 remote from the second main body portion 209. The nose mask sealing part 21 is made of soft rubber materials. The nose cup sealing portion 21 is in close contact with the face of the user. In the present embodiment, the support body 201 and the nose cup sealing portion 21 are integrally molded in a mold, thereby eliminating manual manipulation and adhesives. Optionally, the support body 201 and the nose cup sealing portion 21 are removably connected together to facilitate disassembly and cleaning by the user. The support body 201 and the nose seal 21 enclose a second receiving chamber 27 having the support body 201 as a top and the nose seal 21 as a bottom.

When a user wears the oronasal mask 100, the nasal mask sealing part 21 is tightly attached to the face of the user, and the nasal mask sealing part 21 has excellent flexibility and rebound resilience, so that the nasal mask can deform along with the movement of the muscles of the face of the user, has a dynamic sealing effect, and can prevent a gap from being formed between the oronasal mask 100 and the face of the user, so that unfiltered air cannot be directly inhaled by the user, and the oronasal mask 100 has a better filtering effect.

The nose mask sealing part 21 is provided with a first curved surface attaching part 210 adapted to the shape of the face of the user, and a first protrusion 214 provided inside the first curved surface attaching part 210. The first curved surface attachment portion 210 is raised away from the second extension portion 208 of the support body 201. The first protrusion 214 is disposed on the concave side of the first curved surface attaching part 210. In the present embodiment, the first protrusion 214 extends substantially perpendicular to the first curved surface attaching portion 210. Preferably, the first protrusion 214 and the outer side of the first curved surface fitting portion 210 form an engagement groove. In the present embodiment, the second extension portion 208 is engaged in the engagement groove. Alternatively, the first protrusion 214 may be formed integrally with the second extension 208. In this embodiment, the outer side of the second extension 208 forms the flared flange 28. The mask sealing portion 11 is engaged with the flange 28, that is, the flange 28 is engaged between the first projection 214 and the outer side of the first curved surface fitting portion 210, thereby securing the sealing effect. The flange 28 is designed to make the mask 2 more comfortable and more ergonomic.

The first curved surface fitting part 210 comprises a first fitting part 211 which is arranged on the upper part of the nose cover sealing part 21 and is matched with the shape of the nose bridge region, a second fitting part 212 which is arranged in the middle of the nose cover sealing part 21 and is matched with the shape of the cheek region, and a third fitting part 213 which is arranged on the lower part of the nose cover sealing part 21 and is matched with the shape of the upper lip region. Specifically, in the embodiment of the present invention, the nose mask sealing portion 21 adopts a three-dimensional 3D design method, the first attaching portion 211, the second attaching portion 212, and the third attaching portion 213 are disposed on a surface that is attached to the face of the human body, and the curved surface is configured to perfectly conform to the shape of the face of the user, so as to conform to ergonomic design and closely attach to the face of the user, thereby not only ensuring the sealing performance of the nose mask 2, but also enabling the nose mask 2 not to adhere to the mouth, reducing the feeling of oppression of the mouth and nose, and improving the comfort level of use.

When in use, the user can independently use the nose mask 2 to carry out respiratory protection, and the activities of talking, eating, drinking and the like of the user are not affected; and when the user needs to protect the mouth, the mask 1 can be simply attached to the nose mask 2 to cover the mouth and nose at the same time, and the mask 1 can be detachably attached on the nose mask 2 under the magnetic attraction action without using a tying member such as a string. Specifically, at least one third permanent magnet 15 corresponding to the at least one first permanent magnet 24 is provided in the mask 1. In the present embodiment, the at least one third permanent magnet 15 is molded in the mask 1 by means of insert molding. In the present embodiment, the at least one first permanent magnet 24, the at least one second permanent magnet 25, and the at least one third permanent magnet 15 are all embedded in their respective positions, not visible from the outside.

Referring to fig. 2A, 2B, 4A and 4B together, the mask 1 includes a mask body 10 and a mask sealing part 11 provided at an inner side of the mask body 10. The mask body 10 is made of a hard rubber material. The mask sealing part 11 is made of soft rubber material. The mask sealing part 11 is tightly attached to the face of the user. In this embodiment, the mask body 10 and the mask seal portion 11 are molded integrally in a mold, thereby eliminating manual operation and adhesives. Optionally, the mask body 10 and the mask sealing part 11 are detachably connected together to facilitate disassembly and cleaning by a user. The mask body 10 and the mask seal 11 enclose an accommodation space 16 having the mask body 10 as a top and the mask seal 11 as a bottom.

Use oral area inhaled air when wearing gauze mask inevitable because of the urgent need of breathing, for preventing to have the space to lead to not filtering 26 filterable air admission oral area between gauze mask 1 and the nose cup body 10, need guarantee also to keep sealed between nose cup body 10 and the gauze mask 1 to make the air must supply human breathing needs through nose cup body 10 and filtering 26 after getting into by the third through-hole of gauze mask 1. For this purpose, the outer surface of the nose mask body 20 is fitted to and sealed with the inner side surface of the mask, and specifically, a seal ring is provided between the air inlet surface of the nose mask body and the inner side surface of the mask, and the air tightness between the nose mask and the mask is maintained by pressing the seal ring after the attachment of the nose mask and the mask by magnetic attraction.

The gauze mask sealing part 11 that sets up is sealed in order to guarantee the laminating of gauze mask and face, can form the malleation in gauze mask 1 when exhaling to jack up whole gauze mask 1, make and produce the hole between gauze mask sealing part 11 and the user face and just can realize, also consequently may arrive to exhale smoothly. In order to solve the problem, a one-way valve for exhausting gas can be arranged in the lower containing cavity of the mask, so that the exhaust of the gas exhaled by the human body is facilitated. For further improvement, the air exhausting device for negative pressure can be formed in the accommodating cavity, the air of the mask is directly blown out through the air exhausting device, the negative pressure formed in the mask by the air exhausting device is facilitated to promote the air to enter the mask body 10 after being filtered, and the air is supplied to the human body for expiration, so that the problem of breathing difficulty caused by wearing the nose mask and the mask can be greatly improved.

The mask body 10 includes a third body 101 and a third extension 102 extending from the outer periphery of the third body 101. The third body 101 has a plurality of third through holes 103 corresponding to the plurality of first through holes 205 of the nose mask 2. In this embodiment, the plurality of third through holes 103 are disposed at the upper portion of the third body 101, and when in use, the plurality of third through holes 103 correspond to the nose of the user. A partition plate 12 extending vertically inward is provided inside the third body 101 to divide the accommodation space 16 into an upper third accommodation chamber 13 and a lower fourth accommodation chamber 14, which are not affected by each other. The plurality of third through holes 103 are disposed at positions of the third body 101 corresponding to the third receiving cavity 13. The fourth receiving chamber 14 covers the mouth of the user when in use, thereby preventing contaminants, pathogens, etc. from entering the mouth of the user and preventing gas exhaled from the mouth from entering the third receiving chamber 13.

Preferably, the at least one third permanent magnet 15 is disposed in the third body 101 of the mask 1. In the present embodiment, the at least one third permanent magnet 15 is molded in the third body portion 101 by means of insert molding. At least one third permanent magnet 15 is disposed at one side of the region where the plurality of third through holes 103 are located. Preferably, the at least one third permanent magnet 15 comprises two third permanent magnets. In the present embodiment, two third permanent magnets 15 are symmetrically disposed on both sides of the region where the plurality of third through holes 103 are located. Thereby, the mask 1 is attached to the nose mask 2 by the mutual magnetic attraction of the at least one third permanent magnet 15 and the at least one first permanent magnet 24. When the mask 1 is attached to the nose mask 2, the nose mask 2 is received in the third receiving chamber 13 of the mask 1. In this embodiment, two symmetrical wall portions 131 are provided at the upper portion of the third accommodating chamber 13. The contours of the partition 12 and the two wall portions 131 are adapted to the outer shape of the mask 2. The wall 131 of the third housing chamber 13 and the partition 12 prevent the mask 1 from being displaced relative to the nose mask 2. It is envisaged that the wall portion 131 could be omitted and the diaphragm 12 and the third extension 102 contoured to fit the external shape of the mask 2.

In this embodiment, the third extending portion 102 of the mask body 10 extends in a substantially flaring shape. The mask sealing portion 11 is disposed on a side of the third extending portion 102 away from the third body portion 101. When a user wears the oronasal mask 100, the mask sealing part 11 is tightly attached to the face of the user, and the mask sealing part 11 is extremely good in flexibility and rebound resilience, so that the mask sealing part can deform along with the movement of the muscles of the face of the user, has a dynamic closing effect, and can prevent a gap from being formed between the oronasal mask 100 and the face of the user, so that unfiltered air cannot be directly inhaled by the user, and the oronasal mask 100 has a better filtering effect.

The mask sealing portion 11 is provided with a second curved surface fitting portion 110 adapted to the shape of the face of the user, and a second protrusion 114 provided on the inner side of the second curved surface fitting portion 110. The second curved surface fitting portion 110 is raised away from the third extending portion 102 of the mask body 10. The second protrusion 114 is disposed on the concave side of the second curved surface fitting portion 110. In this embodiment, the second protrusion 114 extends substantially perpendicular to the second curved surface fitting portion 110. Preferably, the second protrusion 114 and the outer side of the second curved surface fitting portion 110 form an engagement groove. In the present embodiment, the third extension 102 is engaged in the engagement groove. Alternatively, the second protrusion 114 may be integrally formed with the third extension 102. In this embodiment, the outer side of the third extension 102 forms an outwardly flared bead 104. The mask sealing portion 11 is joined to the cuff 104, that is, the cuff 104 is joined between the second projection 114 and the outside of the second curved surface fitting portion 110. The design of the cuff 104 makes the mask 1 more comfortable and more ergonomic.

The second curved surface attaching portion 110 includes a fourth attaching portion 111 disposed on the upper portion of the mask sealing portion 11 and adapted to the shape of the nasal bridge region, a fifth attaching portion 112 disposed on the middle portion of the mask sealing portion 11 and adapted to the shape of the cheek region, and a sixth attaching portion 113 disposed on the lower portion of the mask sealing portion 11 and adapted to the shape of the chin region. Specifically, in the embodiment of the present invention, the mask sealing portion 11 adopts a three-dimensional 3D design method, the face that is attached to the face of the human body is provided with the fourth attaching portion 111, the fifth attaching portion 112 and the sixth attaching portion 113, and the curved surface is configured to perfectly conform to the shape of the face of the user, so as to conform to the ergonomic design and to be tightly attached to the face of the user, thereby not only ensuring the sealing performance of the mask 1, but also enabling the mask 1 not to stick to the mouth and face, reducing the feeling of oppression around the mouth and nose, and improving the comfort level of use. Therefore, on the premise that the mask sealing portion 11 ensures the fitting degree of the mask 1 to the face of the user, the mask 1 can be detachably attached to the nose mask 2 under the magnetic attraction effect without using a binding member such as a hanging rope.

The oronasal mask 100 provided by the invention is convenient for a user to carry and has low cost; and is easy to wear and remove. The user can clean the mask 1 and the nose mask 2 by himself, and the user only replaces the filter 26 when using the mask, thereby greatly reducing the consumption cost of the user. In addition, gauze mask 1 and nose cup 2 detachable connection can make things convenient for the user to wear nose cup 2 and gauze mask 1 simultaneously and wear nose cup 2 alone to be applicable to different service environment.

The above description is only a preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above listed embodiments, and any simple changes or equivalent substitutions of the technical solutions obvious to those skilled in the art within the technical scope of the present invention are within the protection scope of the present invention.

Claims

1. A nose mask, comprising a nose mask body (20), a support body (201) accommodated in the nose mask body (20), and a filter body (26) clamped between the nose mask body (20) and the support body (201), characterized in that at least one first permanent magnet (24) is embedded in the nose mask body (20), at least one second permanent magnet (25) corresponding to the at least one first permanent magnet (24) is embedded in the support body (201), so that the support body (201) is detachably attached in the nose mask body (20) by magnetic attraction.

2. The nasal mask according to claim 1, wherein the cover (202) of the nasal mask body (20) comprises a first body portion (203) and a first extension portion (204) extending from an outer periphery of the first body portion (203), the support body (201) is received in a first receiving cavity (23) enclosed by the first body portion (203) and the first extension portion (204), and the first body portion (203) is provided with a plurality of first through holes (205).

3. Nasal mask according to claim 2, characterized in that said at least one first permanent magnet (24) is provided in said first body portion (203) by means of insert moulding.

4. Nasal mask according to claim 2, characterized in that said support body (201) comprises a second body portion (209) and a second extension (208) extending from the periphery of said second body portion (209), said second body portion (209) being provided with a plurality of second through holes (207) corresponding to said plurality of first through holes (205).

5. Nasal mask according to claim 4, characterized in that said at least one second permanent magnet (25) is provided in said second body portion (209) by means of insert moulding.

6. Nasal mask according to claim 4, characterized in that the support body (201) is provided with a mask sealing portion (21) arranged on a side of the second extension (208) remote from the second body portion (209).

7. The nasal mask according to claim 6, wherein the nasal mask sealing portion (21) is provided with a first curved conforming portion (210) conforming to a shape of a face of a user, and a first protrusion (214) provided inside the first curved conforming portion (210).

8. Nasal mask according to claim 1, characterized in that a mask (1) is removably attached to the mask by magnetic attraction, the mask (1) having at least one third permanent magnet (15) provided therein in correspondence of the at least one first permanent magnet (24).

9. An oronasal mask comprising a nasal mask and a mouth mask detachably mounted on the nasal mask, wherein the nasal mask is as claimed in any one of claims 1 to 7, and the mouth mask is detachably attached to the nasal mask by magnetic attraction; the third through hole for the air inlet of the mask is formed in the air inlet surface of the mask body (20), and the outer surface of the mask body (20) at the position is attached to the inner side face of the mask and keeps sealed.

10. An oronasal mask according to claim 9 wherein the interior of the mask is provided with a partition (12) extending vertically inwardly to divide the receiving space (16) of the mask into upper and lower receiving chambers which are isolated from each other, the mask engaging in the upper receiving chamber.

11. The oronasal mask according to claim 9, wherein a seal ring is provided between the air inlet surface of the mask body (20) and the inner side surface of the mask, and the air tightness between the mask and the mask is maintained by magnetically attaching the mask and then pressing the seal ring.

12. An oronasal mask according to claim 10 wherein the lower receiving chamber has a one-way valve therein for venting gases and/or venting means to create a negative pressure in the receiving chamber.