Respiratory protection methods and transparent masks

Abstract

The present invention relates to a respiratory protection method comprising the steps of: 1) providing a mask comprising: a transparent mask body (1) having an edge with an upper portion (36), a right portion (2), a left portion (3), and a lower portion (4), a membrane (8) attached to the edge of the transparent mask body (1), one or more assembly parts (15, 16), a right attachment (9) and a left attachment (10), and 2) placing the mask on a user's face with the membrane (8) in contact with only the underside of the user's chin at the lower portion (4) of the edge of the mask body (1). The present invention also relates to a respiratory protection mask suitable for carrying out the method.

Description

TECHNICAL FIELD

[0001] The present invention relates to a respiratory protection method and a transparent respiratory protection mask provided with a replaceable filter.

BACKGROUND ART

[0002] The Australian patent application published under the number AU2020102286 relates to an assembly component of a respiratory mask, the configuration of which consists of a substantially pear-shaped mask body designed to come into contact with the user's face, one detachable reinforcing member attached to the inner side of the mask body, one detachable mask liner arranged on the outer side of the mask body, one or more assembly components forming a filter that is an air inlet through the mask liner, and a discharge assembly component forming an air outlet hole through the mask body, wherein the mask body and the reinforcing member can be combined. The mask liner has two straps that are secured to the user's head to hold the entire mask assembly component.

[0003] The Spanish patent application published under the number ES 2 778 000 relates to a reusable respiratory protection mask. The mask is designed to be worn over the nose and lower part of the face, secured by straps surrounding the ears and the head, and connected to two lateral circular protrusions provided with filters. In addition, the lower part of the mask is also provided with a protrusion for housing electronic equipment. Although this mask is transparent to facilitate communication and facial recognition, it lacks adaptability, and since the entire edge is in close contact with the user's face, when the jaw moves, the mask will lift or shift, resulting in leakage that significantly reduces the effectiveness and reliability of the mask.

[0004] The Chinese patent application published under the number CN 107 929 967 and the Chinese utility model published under the number CN 208 097 144 are directed to respiratory masks, which include the following. - One transparent mask body whose edge consists of an upper part, a right side part, a left side part and a lower part, - One face-contacting sealing member provided on the edge of the transparent mask body, - One or more side filtration assembly parts, - One right-handed support and one left-handed support for facial support. It has the following characteristics: The upper edge of the mask body includes right and left curves that start from its center, curve downwards, and then rise upwards again. • The lower edge of the mask body is horizontal. • The right and left sides of the mask body are vertical. The right and left mediators are attached to the upper edges of the mask body and to the corners formed between the right and left sides, respectively. The membrane protruding from the mask body has an end fixed to the mask body and an open end, and at the upper edge of the mask body, the open end of the membrane extends perpendicularly from the mask body. In this mask, the sealing component specified by reference number 103 and most commonly seen in Figures 5 and 6 of the relevant Chinese document is a sealing ring, which has a U-shaped cross-section and whose open ends are bent inward relative to each other. This mask must be worn over both the wearer's ears and neck, which causes significant discomfort to the wearer. Therefore, although the lower part is designed to fit snugly against the user's chin with a fixing device 510, it is difficult for the user to speak, and even if they can speak, the movement of the lower jaw causes the chin to slide over the sealing ring, which is uncomfortable and compromises the airtightness of the mask. In any case, the mask has two fans near the user's ears, making it difficult to hear ambient sounds accurately, and it is not designed for the user to communicate.

[0005] Patent No. FR 773 129 proposes a respiratory mask. The mask is designed to be fitted by applying pressure to the user's face, as described in the specification of the patent and as clearly shown in particular in Figure 4. As a result, the user of such a mask is unable to speak once the mask is put on.

[0006] A U.S. patent application published under the number US2017 / 0007861 proposes a breathing mask comprising a facial seal designed to surround the area of ​​the user's nose and mouth, as shown in paragraph

[14] of the application. As seen in Figure 5, once the mask is fitted to the user's face, the user is unable to speak.

[0007] A South Korean patent application, published under number KR 2005 0042986, relates to a transparent mask designed to cover the user's nose and mouth. As is clear from Figures 2 and 11 of the application, the user cannot speak while wearing the mask because the seal is compromised when the lower jaw is moved. [Overview of the project] [Problems that the invention aims to solve]

[0008] The main objective of the present invention is to propose a respiratory protection method using a transparent, adjustable, comfortable, breathable respiratory protective mask that allows the user to converse while maintaining a secure and airtight fit to the face, is reliable, reusable, and has easily replaceable filters. [Means for solving the problem]

[0009] To achieve the aforementioned objective, the inventor designed the mask so that the lower part rests against the underside of the chin, rather than against the chin itself. This allows for free conversation without compromising the mask's airtight seal. These results are obtained by ensuring a seal with a membrane, which protrudes upward at an angle from the edge of the mask body to which it is attached, at the lower part of the edge of the mask body, and whose open end curves downward. In other words, the position and flexibility of the membrane allow for minimal obstruction of the downward movement of the mandible, the membrane is closer to the temporomandibular joint and absorbs jaw movement, and the curved edges of the membrane allow it to slide and adapt, maintaining the mask's airtight seal without causing discomfort to the wearer. Furthermore, the curved shape of the mask itself further increases the proximity between the open end of the membrane and the mandibular joint.

[0010] According to the present invention, this objective can be achieved by a respiratory protection method in accordance with item 1 below. 1. A respiratory protection method comprising the following steps, the steps being: 1) To supply masks, The mask in question is, - A transparent mask body with edges on the top, right side, left side and bottom, - A membrane provided on the edge of the transparent mask body, - Preferably one or more lateral assemblies, - Includes a right-hand and left-hand holder for retention, The upper part of the edge of the mask body includes right and left curves that start from its center, curve downward, and then rise upward again. The lower part of the edge of the mask body is horizontal. The right and left sides of the mask body are vertical. The right and left retaining media are each attached to the upper part of the edge of the mask body and to the corners formed between the right and left sides, The membrane protruding from the mask body has an end fixed to the mask body and an open end, and at the upper part of the edge of the mask body, the open end of the membrane extends perpendicularly from the mask body. Furthermore, at the lower part of the edge of the mask body, the membrane protrudes from the fixed edge of the mask body, inclined upward, and the open end curves downward. 2) A respiratory protection method comprising placing the mask on the user's face at the lower portion of the edge of the mask body, with the membrane in contact with only the lower surface of the user's chin.

[0011] Advantageous features of the method of the above item 1 are set forth in the following items. 2. The respiratory protection method according to item 1, comprising a preliminary step of selecting a mask for the user. 3. The respiratory protection method according to item 3, wherein the preliminary step of selecting a mask for the user includes a sealability test. 4. The respiratory protection method according to item 3, wherein the sealability test is performed using a blocking body, such as a blocking body for a mask adjustment test. If not sealed, it means that the mask is not properly fitted, that is, the mask is not properly placed on the user's face and / or does not match the size. The assembly component is preferably lateral, and is preferably a filtration assembly component. Preferably, one assembly component is provided on each of both sides (right and left) of the mask body.

[0012] The present invention also relates to a mask according to the following item 5. 5. A respiratory protection mask particularly suitable for carrying out the method according to any one of the preceding items, the mask comprising: - A transparent mask body whose edge comprises an upper portion, a right side portion, a left side portion and a lower portion, - A membrane provided on the edge of the transparent mask body, - One or more assembly components, preferably lateral, - A right intermediate member and a left intermediate member for holding, · The upper portion of the edge of the mask body includes a right curve and a left curve that start from the center thereof, curve downward, and then rise upward again, · The lower portion of the edge of the mask body is horizontal, · The right side portion and the left side portion of the mask body are vertical, · The right intermediate tool and the left intermediate tool for retention are each attached to corner portions formed between the upper part as well as the right side part and the left side part of the edge of the mask main body, and · The film protruding from the mask main body has an end fixed to the mask main body and an open end, and at the upper part of the edge of the mask main body, the open end of the film extends at a right angle from the mask main body, The mask is characterized in that, at the lower part of the edge of the mask main body, the film protrudes from the fixed edge of the mask main body so as to incline upward and the open end curves downward.

[0013] Advantageous features of the mask of the above item 5 are shown in the following items. 6. The mask according to item 5, wherein the mask main body is curved from the upper part toward the lower part. 6 / 2. The mask according to item 5 or 6, wherein the mask main body has a monospherical shape. 7. The mask according to any one of items 5 to 6 / 2, wherein one or more of the assembly components, preferably on the side surface, are at least partially composed of polypropylene (PP) and / or polylactic acid (PLA) and / or polyhydroxyalkanoate (PHA) and / or biopolyester. 7 / 2. The mask according to any one of items 5 to 7, comprising two of the assembly components, preferably on the side surface. 8. The mask according to any one of items 5 to 7 / 2, wherein the one or more assembly components are provided with side walls only on a part of the periphery thereof, preferably toward the rear direction of the mask, so as to leave the open base portion, the lid body having a main surface, and one side in an open state. 9. The mask according to item 8, further comprising a filter inserted between the lid body and the open base portion. 10. The mask according to item 8, further comprising a blocking body inserted between the lid body and the open base portion. 11. A mask according to any one of items 5 to 10, wherein, at the side portion of the edge of the mask body, the open end of the membrane extends perpendicular to the mask body, then curves toward the rear of the mask, and the right and left sides of the membrane approach each other while forming a rounded shape. 12. A mask according to any one of items 5 to 11, wherein the width of the membrane widens from top to bottom at the side of the edge of the mask body. 13. A mask described in any one of items 5 to 12, - The right-hand mediator is also fixed to the joint portion of the lower and right side of the mask body, forming a loop together with the edge of the mask body, and, - The left mediator is also fixed to the joint between the lower and left sides of the mask body, forming a loop together with the edge of the mask body. 14. A mask according to any one of items 5 to 13, wherein the retaining mediator is attached to the mask body in an adjustable manner. 15. A mask according to item 8, or any one of items 9 to 14 if it is dependent on item 8, wherein each of the main surfaces has a rib on the side facing the base. 16. A mask according to item 8, or any one of items 9 to 15 if it is dependent on item 8, wherein the lid comprises a flange at the end of the side wall facing the main surface. 17. A mask according to item 9 or 10, or any one of items 10 to 16 if it is dependent on item 9 or 10, wherein each of the filters or the barriers includes a knob portion. 18. A mask according to any one of items 5 to 17, wherein the lateral assembly components are each cassette and / or the filters are each cartridge, and each cassette and each cartridge is an isosceles trapezoid shape with parallel sides curved concentrically. 19. A mask according to item 9, or any one of items 11 to 18 if it is dependent on item 9, wherein each filter has a frame in which a porous material is contained. It goes without saying that the characteristics of items 5 through 19 also apply to the masks mentioned in the methods of items 1 through 4.

[0014] Furthermore, the present invention relates to the use of a mask, and in accordance with the invention, the membrane is positioned below the edge of the mask body so as to contact only the underside of the person's chin, and the mask is worn on the person's face to protect the person's breathing. Preferably, this includes a preliminary step of selecting a mask for the person (user). Preferably, this preliminary step includes a sealing test. This test is preferably performed using a barrier, such as a barrier for mask adjustment testing.

[0015] In another aspect, the present invention also covers the manufacturing process of the aforementioned mask, characterized by including a double injection molding step. In yet another aspect, the present invention relates to a method for testing the airtightness of a mask equipped with a replaceable filter, using a barrier instead of a filter. The method can be used for any mask with a replaceable filter, in particular a mask according to the present invention. For example, a mask user can check the airtightness of the mask by inserting a barrier, such as one used for mask adjustment testing, that is roughly the same size as the filter, into the place where the filter would normally be placed, and then breathing in and out. This method is easier to implement than previously used techniques and is far more reliable than the method of covering the mask with one's hand. [Effects of the Invention]

[0016] Other features and advantages of the present invention will be described in detail below with reference to the figures in the appendix, which schematically illustrate the following points. [Brief explanation of the drawing]

[0017] [Figure 1] A front view of the mask according to the present invention when worn by a user. [Figure 2] The mask shown in Figure 1, viewed from the side. [Figure 3] Masks of Figures 1 and 2 viewed from the side and below. [Figure 4] The mask shown in Figure 1, viewed from the back using perspective. [Figure 5] Figure 4 shows an exploded view of the mask. [Figure 6] A portion of the side filter unit of the mask according to the present invention, before assembly. [Figure 7] The part shown in Figure 6 after assembly. [Figure 8] A complete filtration lateral unit for a mask according to the present invention. [Figure 9] A side view of a mask worn by a user according to the present invention. [Figure 10] A cross-sectional side view of the skeleton of a user with their mouth closed, wearing the mask according to the present invention. [Figure 11] Figure 10 shows a lateral cross-sectional view of the user's skeleton, with the user opening their mouth, causing the lower jaw to move downward. [Modes for carrying out the invention]

[0018] <Detailed description of the invention> An embodiment of the transparent respiratory protective mask according to the present invention is shown in Figures 1 to 11. To understand this mechanism, medically speaking, the width of the mouth opening is usually equivalent to the width of three fingers stacked vertically. As can be seen in Figures 10 and 11, when the mouth is opened, the axis of the temporomandibular joint (TMJ) undergoes a complex movement involving both translational and rotational motion simultaneously, causing the mandible to tilt backward and downward. Therefore, the mask according to the present invention incorporates a unique design in which the ends of the membrane form a sag below the lower jaw, perfectly conforming to the shape of the user's jaw, and having the special property of flattening and moving backward in accordance with the complex movements of the jaw. When the jaw is opened, the sag indents, allowing the membrane to continue to contact the lower jaw while maintaining an airtight seal, and absorbing the overall movement when the mouth is opened. Thanks to this structure, the upper part that rests on the nose does not move, and the mask remains stable on the face when speaking.

[0019] Figure 1 shows a mask that has been properly fitted by a user and is ready for use. The mask first includes a rigid or semi-rigid transparent mask body 1 whose edges consist of an upper part 36, a right side part 2, a left side part 3, and a lower part 4. The upper part 36 of the rim has a right curve 5 and a left curve 6, both of which start from the center 7, curve downwards, and then rise upwards towards the upper part of the user's ear, maintaining a constant distance from the contour of the user's eye. The lower section 4 is horizontal, while the sides 2 and 3 are nearly vertical.

[0020] The shape of this design increases the contact area of ​​the mask body 1 with the wearer's face, thereby allowing for a more even distribution of contact pressure compared to known masks. Furthermore, this design frees up areas important for human communication, such as the eyes, nose, and mouth, as well as areas used for facial recognition algorithms.

[0021] Figures 2 and 3 show that the mask body 1 is equipped with a membrane 8 for contact with the face, and that the membrane surrounds the mask body 1. The membrane 8 has one end fixed to the mask body 1 and protrudes from the mask. At the upper edge 36 of the mask body 1, as can be seen particularly in Figure 1, the open end of the membrane 8 is set at a right angle to the mask body 1 to reduce visual obstruction. As a result, the width of the membrane that the mask wearer sees is very narrow. At the sides 2 and 3 of the edge of the mask body 1, the open end of the membrane 8 extends perpendicular to the mask body 1 and then curves toward the rear of the mask, increasing the contact surface and absorbing facial movements. Furthermore, to compensate for the natural narrowing of the face, the width of the membrane 8 widens from top to bottom so that the lower part 4 of the edge of the mask body 1 can maintain horizontality. In particular, as shown in Figure 4, at the lower part 4 of the edge of the mask body 1, the membrane 8 protrudes upward from the fixed edge of the mask body 1, and its open end is curved downward. This curvature increases the contact surface with the mandible, providing airtightness and stability to the mandible during mandibular movement. In other words, as shown in Figure 9 in particular, thanks to the upwardly sloping portion and the downwardly curved open end, the membrane 8 can absorb the downward movement of the mandible while maintaining airtightness, and this downward curve prevents uncomfortable pressure on the jaw for the user. Furthermore, the right and left sides of film 8, particularly as shown in Figures 4 and 5, are rounded in shape and closely adjacent to each other. The width of the membrane 8 widens at the lower part of the sides 2 and 3 of the edge of the mask body 1, and the left and right sides of the membrane 8 come closer together at the lower part 4 of the edge of the mask body 1. This allows the excellent adaptability due to the flexibility of the membrane 8 to be utilized, resulting in a rounded shape that fits the user's chin. By maintaining a distance between the mask body 1 and the face, and by creating volume in front of the breathing holes with the membrane 8, breathing and air circulation are facilitated. As a result, the user does not need to strain to breathe and can breathe normally.

[0022] As shown in Figure 4, the mask according to the present invention consists of a right mediator 9 and a left mediator 10 for retention on the user's face, designed to pass around the user's ears or head. The right mediator 9 and the left mediator 10 are fixed on one side to corners 11 and 12 formed between the upper part 36 and the right side part 2 and the left side part 3, respectively, and on the other side to joints 13 and 14 between the lower edge 4 of the transparent mask body 1 and the right side part 2 and the left side part 3, respectively. As a result, the membrane 8 provides the main support along the entire upper part 36 of the mask body 1, the support from the membrane 8 becomes lighter on both sides 2 and 3, and the support becomes even lighter at the lower part 4. Preferably, the dimensions of the mask body 1, particularly the lengths of the side portions 2 and 3 of the frame, are designed so that the lower portion 4 is positioned below the user's chin, as is evident in Figures 1 to 3. The mask body 1 is curved from top to bottom overall. This allows it to have a shape similar to a part of a sphere, which has the advantage of preventing the spread of light reflection and leaving a comfortable space, especially in front of the wearer's nose and mouth.

[0023] The membrane 8 allows the mask body 1 to be fitted to different facial features, and its stable fit enables facial movements (speaking, frowning, and other expressions). Since the maximum pressure is applied at the upper part 36, an additional facial contact material 34 is preferably provided at the open end of the membrane, particularly as shown in Figure 4, to smooth and alleviate the pressure on the face. The support of the mask body to the face can also be adjusted by the mediators on the right side 9 and left side 10 of the face, and their length can be changed by the fixing device to the mask body 1, as shown in Figure 4. In this position, the lower parts of mediators 10 and 11 are held at joints 13 and 14 by clamp-like members that can slide by pulling mediators 9 and 10 in one direction or the other.

[0024] Returning specifically to Figure 1, air filter assemblies 15 and 16 are shown on both sides of the mask body 1. The mask body 1 is impermeable, and the membrane 8 seals the inside of the mask, so it needs to allow air to pass through so that the mask wearer can breathe normally. Air filter assembly parts 15 and 16 are shown in detail in Figure 5. These assembly parts are fixed onto bases 17 and 18, respectively, which are fixed to openings of approximately the same size provided on the side of the mask body 1. The bases 17 and 18 are provided with openings 19 and 20 for air to enter and exit, and the air filter assemblies 15 and 16 are bidirectional. Covers are provided on the bases 17 and 18. Each cover has a main surface 21, 22 and side walls 23, 24 positioned perpendicular to it, with one side open to allow the introduction of filters 25, 28. Airflow is limited to the rearward-opening surface. This prevents sprays and droplets from being scattered onto the active surface of the filters. The main surfaces 21 and 22 are designed to have ribs 26 and 27 on the sides facing the bases 17 and 18, forming an air circulation space between the main surfaces 21 and 22 of the lid and the filters 25 and 28, and providing stable support for them. Various information (name, brand, logo, drawing) can be displayed on the other surfaces of the main surfaces 21 and 22, i.e., the outward-facing surfaces of the mask.

[0025] Figure 6 shows the filter 25 inserted into the lid, and Figure 7 shows the filter 25 in its normal operating position. To facilitate attachment and detachment, each filter 25, 28 is preferably provided with a handle portion 29, 30. In particular, as shown in Figures 6 and 7, the ends of the side walls 23 and 24 facing the main surfaces 21 and 22 can be provided with flanges 31 and 32 that contact the bases 17 and 18 and form filter compartments. Furthermore, the lid is equipped with rivets 33 and 34, which pass through corresponding holes in the bases 17 and 18 (see Figure 8) and are fixed to the mask body 1, thereby firmly securing the lid to the mask body. It goes without saying that filters 25 and 28 are designed to completely block the openings 19 and 20, and it is preferable that the knob portions 19 and 20 be left on the outside of the filter assembly so that they can be accessed. Preferably, the filters 25, 28 have rigid, impermeable frames 35, 36 having a porous material inside. Thus, the air filter assembly parts 15 and 16 function as a receiving cassette, and the filters 25 and 28 function as cartridges. By installing various types of filters, various types of filtration can be achieved. The design of these filter assemblies 15 and 16 has the advantage of allowing for easy replacement of filters 25 and 28. This can be done without removing the mask or any other components, as each filter 25 or 28 only needs to be slid between two parallel inner surfaces of the side walls 23 and 24 within the filter compartment of each air filter assembly 15 or 16 until it abuts against the side wall 23 or 24 facing the entrance to the filter compartment. In particular, in Figures 6 and 7, when projected onto a plane, the filter assembly parts 15 and 16 have the shape of an isosceles trapezoid with substantially parallel sides that curve concentrically, preferably such that the shorter side of the trapezoid is close to the center of the virtual circle. If the knobs 29 and 30 are not considered, filters 25 and 27 will have the same shape. This shape makes it easier to insert filters 25 and 27 into the filter compartment.

[0026] <Materials and Manufacturing> Respiratory protective masks can be manufactured from known materials, for example, by double injection molding, additional injection molding, or thermoforming. Preferably, simultaneous or sequential double injection molding is used for the membrane 8 and the mask body 1. The film preferably uses an elastomer such as a thermoplastic elastomer (TPE) and / or a styrene-based thermoplastic (TPE-S), or optionally an elastomer such as silicone. The mask body 1 is made of plastic material or a transparent, injectable biomaterial. The lateral assembly parts 15 and 16 are made at least partially from polypropylene (PP) and / or polylactic acid (PLA) and / or polyhydroxyalkanoate (PHA) and / or biopolyester. Filter frames generally use injectable materials such as elastomers or thermoplastics. The porous filter material varies depending on the type of filtration desired. For example, propylene or an equivalent material can be used for infectious particle removal filters.

[0027] The transparent mask according to the present invention is preferably divided into three dimensions to fit the faces of the majority of people, and also provides some rarer dimensions to suit specific facial features. The entire mask, excluding the filter, can be reused after disinfection by washing.

Claims

1. It is a mask, and the said mask is - A transparent mask body (1) having an upper part (36), a right part (2), a left part (3), and a lower part (4), wherein the mask body (1) is curved from the upper part (36) to the lower part (4). - A membrane (8) provided on the edge of the transparent mask body (1), - One or more assembly parts (15, 16), - Including a right mediator (9) and a left mediator (10), - The lower part (4) of the edge of the mask body (1) is horizontal. - The right side (2) and left side (3) of the mask body (1) are vertical. The right mediator (9) and the left mediator (10) are each attached to the upper part (36) of the edge of the mask body (1) and to the corners (11, 12) formed between the right side (2) and the left side (3), respectively. - The membrane (8) protruding from the mask body (1) has an end fixed to the mask body and an open end, and at the upper part (36) of the edge of the mask body (1), the open end of the membrane (8) extends perpendicularly from the mask body (1), and - The upper part of the edge of the mask body (1) includes a right curve (5) and a left curve (6) that start from the center (7) of the upper part, curve downward, and then rise upward again. Features include, - The width of the membrane (8) widens from top to bottom at the side portions (2) and (3) of the edge of the mask body (1), - At the lower part (4) of the edge of the mask body (1), the membrane (8) protrudes from the fixed edge of the mask body (1) inclined upward, and the open end curves downward. - The dimensions of the mask body (1) are set such that the lower part (4) is positioned below the user's chin. A mask wherein one or more of the assembly components (15, 16) are at least partially made of polypropylene (PP) and / or polylactic acid (PLA) and / or polyhydroxyalkanoate (PHA) and / or biopolyester.

2. The mask according to claim 1, wherein at the side portions (2) and (3) of the edge of the mask body (1), the open end of the membrane (8) extends perpendicular to the mask body (1), then curves toward the rear of the mask, and the right and left sides of the membrane (8) move closer to each other while forming a rounded shape.

3. The mask according to either claim 1 or 2, comprising two of the aforementioned assembly parts (15, 16).

4. The mask according to any one of claims 1 and 2, wherein one or more of the assembly parts (15, 16) comprises an open base (17, 18), a lid (21, 22) having a main surface, and a side wall (23, 24) only on a portion of the periphery of the lid in order to leave one side open.

5. The mask according to claim 4, further comprising a filter (25, 28) or a barrier inserted between the lid and the open base (17, 18).

6. - The right mediator (9) is also fixed to the joint (13) of the lower part (4) and the right side part (2) of the mask body (1), forming a loop together with the edge of the mask body (1), and - The mask according to any one of claims 1 and 2, wherein the left mediator (10) is also fixed to the joint (14) of the lower part (4) and the left side part (3) of the mask body (1), and together with the edge of the mask body (1), it forms a loop.

7. The mask according to any one of claims 1 or 2, wherein the right mediator (9) and the left mediator (10) are attached to the mask body (1) in an adjustable manner.

8. The mask according to claim 4, wherein each of the main surfaces (21, 22) is provided with ribs (26, 27) on the side facing the base (17, 18).

9. The mask according to claim 5, wherein each of the filters (25, 28) or the barrier body includes a knob portion (29, 30).

10. The mask according to claim 5, wherein each of the filters (25, 28) has a frame (35, 36) inside which a porous material is located.

11. The use of the mask according to either claim 1 or 2, wherein the mask body (1) is positioned on the user's face such that the lower edge (4) of the mask body (1) is in contact only with the underside of the user's chin, thereby ensuring respiratory protection for the user.

12. The use according to claim 11, comprising a preliminary step of selecting a mask for the user, wherein the step includes a sealing test.

13. The use according to claim 11, wherein the width of the membrane (8) of the mask widens from top to bottom at the side of the edge of the mask body (1).

14. A process for manufacturing a mask according to any one of claims 1 and 2, comprising a double injection molding, additional injection molding, or thermoforming step.

15. The manufacturing process according to claim 14, comprising simultaneous or sequential double injection molding of the film (8) and the mask body (1).

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