Mask for fire and disaster evacuation

Abstract

The purpose of the present invention is to provide a mask for fire and disaster evacuation, which is light, is easy to carry and wear, and can protect a user from smoke or toxic gas even for a minimum evacuation time in the event of a fire. To this end, a mask for fire and disaster evacuation according to one aspect of the present invention comprises: an inner skin (10) disposed to cover the mouth and nose of a user; an outer skin (20) coupled to the edge of the inner skin (10) and exposed to the outside; fixing straps (3A, 3B) connected to both left and right sides of the outer skin (20) and fixed to the rear of the head of the user; and a nanofilter (40) interposed between the inner skin (10) and the outer skin (20) to suppress smoke and toxic gas from entering the nose or mouth of the user.

Description

Fire and disaster evacuation masks

[0001] The present invention relates to a mask, and more particularly, to a mask for fire and disaster evacuation.

[0002] Disasters, especially fires, produce a variety of toxic gases and smoke, including carbon monoxide, which can cause serious conditions such as respiratory distress (paralysis) or brain damage, ultimately leading to death. In addition to carbon monoxide, the most dangerous toxic gas produced during a fire, there are also other potentially lethal gases, including carbon dioxide, hydrogen cyanide, nitrogen oxides, hydrogen chloride, sulfur dioxide, ammonia, and benzene.

[0003] Conventional masks commonly sold on the market, such as yellow dust masks or health masks, are focused on blocking fine dust or yellow dust and viruses or bacteria, and are therefore of no help in protecting users from toxic gases and smoke in the event of a disaster such as a fire.

[0004] The gas masks worn by firefighters at fire scenes provide high filtration efficiency and heat blocking function against highly toxic gases and smoke, but they are heavy, uncomfortable to wear, not easy to carry, and not easy to keep nearby, making them difficult for the general public to use. In particular, they have the problem of being expensive.

[0005] In response to this, a mask manufacturing technology was proposed to improve existing yellow dust or health masks to prepare for fires, but the conventional masks manufactured in this way were almost ineffective in blocking toxic gases or smoke, and thus were not commercialized.

[0006] The problem to be solved by the present invention is to provide a fire and disaster evacuation mask that is lightweight, easy to carry and wear, and can protect the user from smoke or toxic gases for at least the minimum evacuation time in the event of a fire.

[0007] According to one aspect of the present invention, a fire and disaster evacuation mask for protecting a user's respiratory system from toxic gases and smoke generated in the event of a fire is provided, the fire and disaster evacuation mask comprising: an inner skin (10) arranged to cover the user's mouth and nose; an outer skin (20) coupled to a rim of the inner skin (10) and exposed to the outside; fixing straps (3A, 3B) connected to both left and right sides of the outer skin (20) and fixed to the back of the user's head; and a nanofilter (40) interposed between the inner skin (10) and the outer skin (20) to prevent smoke and toxic gases from entering the user's nose or mouth.

[0008] The above nanofilter (40) includes nanofibers (42).

[0009] The above nanofilter (40) includes a nanofiber (42) composed of 98 to 99 wt % of polyethylene terephthalate (PET) and 2 wt % or less of polyvinylidene fluoride, and a graphene coating layer (44) formed by applying liquid graphene mixed with graphene powder and an acrylic resin solution to the nanofiber (42) and then drying the result.

[0010] The above fire and disaster evacuation mask further includes a carbon monoxide neutralizing filter (30A or 30B) arranged on the surface of the inner skin (10) or the outer skin (20), and the carbon monoxide neutralizing filter (30A or 30B) is formed by directly coating a carbon monoxide neutralizing material on the surface of the inner skin (10) or the outer skin (20).

[0011] The above fire and disaster evacuation mask further includes a carbon monoxide neutralizing filter (30) interposed between the inner skin (10) and the outer skin (20), and the carbon monoxide neutralizing filter (30) includes a fiber and a coating layer formed by coating a carbon monoxide neutralizing material on the fiber.

[0012] The above carbon monoxide neutralization filter (30A, 30B or 30) contains a mixture of copper and manganese dioxide.

[0013] The above fire and disaster evacuation mask is installed in a mask body (2) including the inner skin (10) and the outer skin (20), and further includes a water pack (9) that is ruptured by an external force and wets the inner skin (10), the outer skin (20), and the nanofilter (40) with water.

[0014] The above fire and disaster evacuation mask further includes a sealing portion (4) installed on the inner skin along the perimeter of the area including the user's mouth and nose to block air from entering through the gap between the user's skin and the inner skin (10).

[0015] According to one aspect of the present invention, a method for manufacturing a fire and disaster evacuation mask comprises the steps of: preparing a nanofiber fabric composed of polyethylene terephthalate (PET) and polyvinylidene fluoride; preparing liquid graphene by mixing graphene powder and an acrylic resin solution; repeatedly applying the prepared liquid graphene to the surface of the nanofiber fabric and drying the nanofiber fabric to which the liquid graphene has been applied, thereby manufacturing a nanofilter fabric including a graphene coating layer; cutting the nanofilter fabric, inner fabric, and outer fabric into a predetermined pattern that is the same or similar to each other; welding the edges of the inner and outer fabrics obtained by cutting the nanofilter obtained by cutting therebetween, thereby manufacturing a mask body; and connecting two upper and lower fixing straps on the left and right sides of the mask body by welding.

[0016] The above method for manufacturing a fire and disaster evacuation mask further includes, before the step of manufacturing the mask body, a step of forming a carbon monoxide neutralizing filter layer containing manganese dioxide and copper mixed so that the molar ratio of Mn and Cu is approximately 2.1:1 to 3:1 on the inner skin or the outer skin.

[0017] The above method for manufacturing a fire and disaster evacuation mask further includes, before the step of manufacturing the mask body, a step of manufacturing a carbon monoxide neutralizing filter by forming a layer containing manganese dioxide and copper mixed in a molar ratio of Mn and Cu of approximately 2.1:1 to 3:1 on a pre-prepared fiber, and, in the step of manufacturing the mask body, the carbon monoxide neutralizing filter and the nanofilter are interposed between the inner skin and the outer skin.

[0018] The fire and disaster evacuation mask according to the present invention has a simple structure and is lightweight, making it highly portable and easy to keep nearby for use. Furthermore, in the event of a fire or other disaster, it can protect the user from toxic gases and smoke within the time it takes for the user to evacuate, i.e., in a timely manner. Furthermore, unlike gas masks, the fire and disaster evacuation mask according to the present invention is easy and convenient to wear, making it suitable for emergency evacuation.

[0019] Figure 1 is a drawing showing a state in which a user wears a fire and disaster evacuation mask according to one embodiment of the present invention.

[0020] Figure 2 is a perspective view showing a fire and disaster evacuation mask according to one embodiment of the present invention.

[0021] Figure 3 is an exploded perspective view showing a fire and disaster evacuation mask according to one embodiment of the present invention.

[0022] Figure 4 is a cross-sectional view illustrating a fire and disaster evacuation mask according to one embodiment of the present invention.

[0023] Figures 5 (a) and (b) are photographs taken before and after cutting of a fire and disaster evacuation mask manufactured according to one embodiment of the present invention.

[0024] Figures 6 and 7 are cross-sectional views showing other embodiments of fire and disaster evacuation masks.

[0025] FIGS. 8 and 9 are drawings for explaining a fire and disaster evacuation mask according to another embodiment of the present invention.

[0026]

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein.

[0028] In describing the present invention, the size and shape of components shown in the drawings may be exaggerated or simplified for clarity and convenience of explanation.

[0029] Additionally, terms specifically defined in consideration of the structure and operation of the present invention may vary depending on the intent or custom of the user or operator. These terms should be interpreted with meanings and concepts consistent with the technical spirit of the present invention, based on the contents of this specification.

[0030] In order to clearly explain the present invention, the description of parts unrelated to the technical idea of ​​the present invention has been omitted, and the same reference numerals are used for identical or similar components throughout the specification.

[0031] In addition, in various embodiments, components having the same configuration are described only in representative embodiments using the same symbols, and in other embodiments, only configurations different from the representative embodiments are described.

[0032] Throughout this specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with another part intervening. Furthermore, when a part is said to "include" a component, this may mean that the other component is included, rather than excluding it, unless otherwise specifically stated. Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] FIG. 1 is a drawing showing a state in which a user wears a fire and disaster evacuation mask according to one embodiment of the present invention, FIG. 2 is a perspective view showing a fire and disaster evacuation mask according to one embodiment of the present invention, FIG. 3 is an exploded perspective view showing a fire and disaster evacuation mask according to one embodiment of the present invention, and FIG. 4 is a cross-section for explaining a fire and disaster evacuation mask according to one embodiment of the present invention.

[0034] As illustrated in FIGS. 1 to 4, a fire and disaster evacuation mask (1) according to one embodiment of the present invention is a fire and disaster evacuation mask for protecting a user's respiratory system from toxic gases and smoke generated when a fire occurs, and includes an inner layer (10) arranged to cover the user's mouth and nose, an outer layer (20) coupled to an outer edge of the inner layer (10) and exposed to the outside, two fixing straps (3A, 3B) connected to the left and right sides of the outer layer (20) and fixed to the back of the user's head, and a nanofilter (40) interposed between the inner layer (10) and the outer layer (20) to prevent toxic gases from entering the user's nose or mouth.

[0035] In addition, the fire and disaster evacuation mask (1) further includes a nose clip (5) that is fixedly installed between the upper part of the inner skin (10) and the upper part of the outer skin (20) to increase the sealing of the mask around the user's nose. The nose clip (5) may be formed of a metal wire or a plastic material with a metal wire built in. In addition, the fire and disaster evacuation mask (1) may be formed with two left and right parts having a symmetrical structure, and a nose wrinkle portion (N) that is linearly folded may be formed at a location where the two left and right parts meet.

[0036] The above inner skin (10) may be formed by cutting, for example, a spunbond nonwoven fabric made of polypropylene (PP) material or a meltblown nonwoven fabric made of polypropylene (PP) material into a predetermined pattern, or may be formed by cutting a three-layer nonwoven fabric made by sequentially laminating a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric, i.e., a SMS (Spunbond-Meltblown-Spunbond) nonwoven fabric into a predetermined pattern.

[0037] Likewise, the outer shell (20) may be formed by cutting, for example, a spunbond nonwoven fabric made of polypropylene (PP) material or a meltblown nonwoven fabric made of polypropylene (PP) material into a predetermined pattern, or may be formed by cutting a three-layer nonwoven fabric made by sequentially laminating a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric, i.e., a SMS (Spunbond-Meltblown-Spunbond) nonwoven fabric into a predetermined pattern.

[0038] The inner skin (10) and the outer skin (20) can be joined by welding (pressure fusion) between the edges with a nanofilter (40) cut in a pattern identical to or similar to that of the inner skin (10) and the outer skin (20) interposed therebetween, thereby forming a mask body (2).

[0039] The above nanofilter (40) is fixed between the inner skin (10) and the outer skin (20) by the welding described above, i.e., edge thermal fusion, while being interposed between the inner skin (10) and the outer skin (20). Although the inner skin (10) and the outer skin (20) have the performance of blocking more than 90% of particles of approximately 0.6㎛ or more contained in smoke, they do not play any role in preventing fine particles of less than 0.6㎛ and toxic gases including carbon monoxide contained in smoke from entering the respiratory tract. In response, the nanofilter (40) plays a role in blocking / suppressing fine particles of less than 0.6㎛ and toxic gases contained in smoke from entering the respiratory tract.

[0040] According to the present embodiment, the nanofilter (40) is formed based on white membrane-shaped electrospun nanofibers (42) composed of 98 to 99 wt % of polyethylene terephthalate (PET) and 2 wt % or less, preferably 1 to 2 wt %, of polyvinylidene fluoride. The nanofibers (42) constituting all or part of the nanofilter (40) are composed of micropores of less than 0.1 μm, thereby blocking the inflow of fine particles contained in smoke and suppressing the inflow of toxic gases. At the same time, since the amount of the micropores is large, pure air filtered of fine particles and toxic gases can easily pass through, thereby reducing breathing resistance. In addition, the polyvinylidene fluoride component imparts hydrophilic properties to the nanofilter (40), thereby preventing the filtration efficiency from deteriorating even in a humid or moisture-rich environment.

[0041] A nanofilter (40) based on nanofibers (42) composed of 98 to 99 wt % of polyethylene terephthalate (PET) and 2 wt % or less of polyvinylidene fluoride has a large surface area and thus has high adsorption efficiency for fine particles and specific gas components in smoke.

[0042] [Table 1] below shows the performance test results of nanofibers.

[0043] [Table 1]

[0044]

[0045] The above nanofilter (40) may further include a graphene coating layer (44) formed by coating liquid graphene on the above-described nanofiber (42) as a base. The graphene coating layer (44) may be a graphene coating layer (44) formed by applying / impregnating the above-described nanofiber (42) with liquid graphene prepared by mixing 55 to 65 wt % of graphene powder and 35 to 45 wt % of non-toxic acrylic resin solution. The liquid graphene prepared as described above may be applied 3 to 4 times to the surface of the nanofiber and dried at 150° C. each time, thereby forming a nanofilter (40) including the nanofiber (42) and the graphene coating layer (44).

[0046] A nanofilter (40) formed by coating liquid graphene containing graphene powder and non-toxic acrylic resin on nanofibers (42) to form a graphene coating layer (44) has the following effects as a fire mask filter.

[0047] First, graphene is a very thin and light two-dimensional carbon nanostructure, and thus has excellent electrical conductivity, thermal conductivity, and mechanical strength. The graphene coating layer (44) further enhances the filtration efficiency of the nanofilter (40) based on nanofibers (42), thereby helping to more effectively block fine particles and toxic gases in smoke. In addition, the graphene coating layer (44) further enhances the heat blocking effect of the nanofilter (40), thereby helping to enable safe use even in high-temperature environments such as fires, and improves the durability of the nanofilter (40). In addition, since the graphene coating layer (44) has a very large surface area, it also contributes to increasing the adsorption efficiency of particles and specific molecules by utilizing the adsorption effect.

[0048] Meanwhile, the two fixing straps (3A, 3B) are thermally bonded to the left and right sides of the outer shell (20) and fixed to the back of the user's head. Compared to the ear fixing straps that are widely used in general sulfur or health masks, the mask can be made to fit more snugly against the user's face, thereby preventing smoke or toxic gases from entering through the gap between the mask and the face surface. At this time, the two fixing straps (3A, 3B) include an upper fixing strap (3A) that is fixed to the upper side of the back of the user's head and a lower fixing strap (3B) that is fixed to the lower side of the back of the user's head, more specifically, adjacent to the back of the neck, and the upper fixing strap (3A) has a longer length than the lower fixing strap (3B). In addition, a highly elastic band is used for each of the two fixing straps (3A, 3B) to provide strong adhesion.

[0049] The above-mentioned sealing portion (4) is additionally provided to more completely block air inflow through the gap between the user's skin and the lining (10) by being installed along the inner edge of the lining (10). It is preferable that the above-mentioned sealing portion (4) be a double-sided tape having an adhesive material attached to the inner surface of the lining (10) on one side and an adhesive material attached to the skin on the opposite side.

[0050] Before use, the mask body (2) is folded on both sides with the nose wrinkle area (N) as the standard, and the release paper attached to the outer surface of the double-sided tape is also folded on top of each other. Some areas of the folded release papers, more specifically, areas adjacent to the left and right edges, are adhered by an adhesive. The adhesive strength of this adhesive is greater than the adhesive strength of the adhesive material formed on the double-sided tape. Therefore, in order to wear the mask, the user can easily peel off some of the release paper with a simple action of unfolding the mask body (2) in the folded state, and the user can quickly and quickly remove the release paper.

[0051] Now, one embodiment of the method for manufacturing the aforementioned fire and disaster preparedness mask will be described. The method for manufacturing the fire and disaster preparedness mask according to this embodiment includes the steps of preparing a white membrane-shaped electrospun nanofiber fabric composed of 98 wt% polyethylene terephthalate (PET) and 2 wt% polyvinylidene fluoride, preparing liquid graphene by mixing 60 g of graphene powder and 40 g of non-toxic acrylic resin, applying the prepared liquid graphene to the surface of the nanofiber fabric prepared as described above, and drying the nanofiber fabric coated with the liquid graphene at approximately 150°C, repeating this process 3 to 4 times to produce a nanofilter fabric.

[0052] In addition, the method for manufacturing a mask for fire and disaster preparedness according to the present embodiment includes a step of cutting the nanofilter fabric, inner fabric, and outer fabric prepared as described above into a predetermined pattern that is the same or similar to each other. Each of the inner fabric and the outer fabric may be a nonwoven fabric made of a spunbond nonwoven fabric made of polypropylene (PP), a meltblown nonwoven fabric made of polypropylene (PP), or a combination thereof, most preferably, a nonwoven fabric having a three-layer structure made by sequentially laminating a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric, i.e., an SMS (Spunbond-Meltblown-Spunbond) nonwoven fabric.

[0053] In addition, the method for manufacturing a mask for fire and disaster preparedness according to the present embodiment includes a step of manufacturing a mask body (2) by thermally welding the edges of an inner skin (10) and an outer skin (20) with a graphene-coated nanofilter (40) in between. At this time, the edge of the nanofilter (40) is also welded between the edges of the inner skin (10) and the edges of the outer skin (20). Of course, a nose clip (5) may be installed before welding.

[0054] In addition, the method for manufacturing a mask for fire and disaster preparedness according to the present embodiment further includes a step of welding and connecting both ends of two fixing straps (3A, 3B) to the left and right sides of the outer shell (20) of the mask body (2).

[0055] In addition, the method for manufacturing a mask for fire and disaster preparedness according to the present embodiment further includes a step of attaching a sealing part (4) with a release paper attached to a double-sided tape to the inner edge of the inner skin (10) before or after the step of connecting the fixing straps (3A, 3B).

[0056] Figures 5 (a) and (b) show photographs taken before and after cutting the fire and disaster evacuation mask manufactured as described above.

[0057] FIG. 6 is a cross-sectional view illustrating a fire and disaster evacuation mask according to another embodiment of the present invention.

[0058] As illustrated in FIG. 6, the fire and disaster evacuation mask according to the present embodiment includes, similarly to the previous embodiment, an inner layer (10) arranged to cover the user's mouth and nose, an outer layer (20) coupled to the outer edge of the inner layer (10) and exposed to the outside, two fixing straps (3A, 3B) connected to the left and right sides of the outer layer (20) and fixed to the back of the user's head, and a nanofilter (40) interposed between the inner layer (10) and the outer layer (20) to prevent toxic gases from entering the user's nose or mouth. The nanofilter (40) may be formed by forming a graphene coating layer on nanofibers, or may be formed by omitting the graphene coating layer.

[0059] According to the present embodiment, a carbon monoxide neutralization filter (30A) having a membrane shape is formed in a laminated manner on one surface of the inner skin (10), and a carbon monoxide neutralization filter (30B) having a membrane shape is also formed in a laminated manner on one surface of the outer skin (20). Each of the carbon monoxide neutralization filters (30A, 30B) may be formed by coating a catalytic material that converts carbon monoxide into carbon dioxide when exposed to oxygen in the air on one surface of the inner skin (10) and one surface of the outer skin (20). The catalytic material may be formed of a mixture of manganese dioxide and copper mixed such that the molar ratio of Mn and Cu is approximately 2.1:1 to 3:1. The carbon monoxide filter (30A, 30B) can be laminated and formed on the inner skin (10) and the outer skin (20) by repeating the process of applying a liquid mixture of manganese dioxide and copper mixed material powder in a non-toxic acrylic resin solution to the inner skin and the outer skin and drying it 2 to 3 times.

[0060] In this embodiment, the carbon monoxide neutralization filter (30A, 30B) is formed on one side of the inner shell (10) and one side of the outer shell (20), respectively, but it may also be considered to form the carbon monoxide neutralization filter (30A or 30B) on only one of the inner shell (10) and the outer shell (20).

[0061] Alternatively, as illustrated in FIG. 7, an independent fiber-type carbon monoxide neutralization filter (30) may be made by coating a manganese dioxide-copper mixture on any fiber fabric, and the fiber-type carbon monoxide neutralization filter (30) may be interposed between the inner layer (10) and the outer layer (20) together with a nanofilter (40). In this case, the carbon monoxide neutralization filter (30) may be made by applying a manganese dioxide-copper mixture liquid, which is a mixture of manganese dioxide-copper powder and a non-toxic acrylic resin solution, to a thin fiber, preferably a non-woven fabric, and repeating the drying process 2 to 3 times.

[0062] FIGS. 8 and 9 are drawings for explaining a fire and disaster evacuation mask according to another embodiment of the present invention.

[0063] Referring to FIGS. 8 and 9, the fire and disaster evacuation mask (1) according to the present embodiment further includes a water pack (9) installed on the upper part of the mask body so as to be positioned around the user's nose when worn. The water pack (9) includes a soft capsule that can be ruptured by an external force such as pressing hard with a finger, and water previously contained in the soft capsule. Although it is also possible to consider installing the water pack (9) between the inner skin (10) and the outer skin (20), it is preferable to fix the water pack (9) to the inside of the mask body after the process of welding the inner skin (10) and the outer skin (20) with the nanofilter (40) interposed therebetween. More preferably, when attaching the double-sided tape constituting the sealing portion (4) to the inner edge of the inner skin (10), it is advantageous to cover the water pack (9) with the double-sided tape and fix it to the inner surface of the inner skin (10). Instead of immediately bursting the water pack (9) when a fire occurs, the user can burst the water pack (9) after a certain period of time when smoke or toxic gas is felt to be inflowing, and the moisture flowing down from above will wet the inner skin (10), outer skin (20) and nano filter (40), thereby further enhancing the smoke and toxic gas blocking effect, and can also cool the heat of the mask and the user's face surface with water.

[0064] The present invention is not limited to the above-described embodiments and can be implemented in various ways.

Claims

1. As a fire and disaster evacuation mask to protect the user's respiratory system from toxic gases and smoke generated in the event of a fire. An inner lining (10) positioned to cover the user's mouth and nose; An outer skin (20) that is combined with the edge of the inner skin (10) and exposed to the outside; Fixed straps (3A, 3B) connected to the left and right sides of the above outer shell (20) and fixed to the back of the user's head; and A fire and disaster evacuation mask characterized by including a nanofilter (40) interposed between the inner skin (10) and the outer skin (20) to prevent smoke and toxic gases from entering the user's nose or mouth.

2. In paragraph 1, A fire and disaster evacuation mask characterized in that the above nanofilter (40) includes nanofibers (42).

3. In paragraph 1, The above nanofilter (40) is a fire and disaster evacuation mask characterized by including a nanofiber (42) composed of 98 to 99 wt% of polyethylene terephthalate (PET) and 2 wt% or less of polyvinylidene fluoride, and a graphene coating layer (44) formed by applying liquid graphene mixed with graphene powder and an acrylic resin solution to the nanofiber (42) and then drying it.

4. In paragraph 1, A fire and disaster evacuation mask further comprising a carbon monoxide neutralizing filter (30A or 30B) disposed on the surface of the inner skin (10) or the outer skin (20), wherein the carbon monoxide neutralizing filter (30A or 30B) is formed by directly coating a carbon monoxide neutralizing material on the surface of the inner skin (10) or the outer skin (20).

5. In paragraph 1, A fire and disaster evacuation mask further comprising a carbon monoxide neutralizing filter (30) interposed between the inner skin (10) and the outer skin (20), wherein the carbon monoxide neutralizing filter (30) comprises a fiber and a coating layer formed by coating a carbon monoxide neutralizing material on the fiber.

6. In paragraph 4 or 5, A fire and disaster evacuation mask characterized in that the carbon monoxide neutralizing filter (30A, 30B or 30) comprises a mixture of copper and manganese dioxide.

7. In paragraph 1, A fire and disaster evacuation mask characterized in that it further includes a water pack (9) installed in a mask body (2) including the inner skin (10) and the outer skin (20), and which is ruptured by an external force and wets the inner skin (10), the outer skin (20) and the nanofilter (40) with water.

8. In paragraph 1, A fire and disaster preparedness mask characterized in that it further includes a sealing portion (4) installed on the inner skin along the perimeter of the area including the user's mouth and nose to block air from entering through the gap between the user's skin and the inner skin (10).

9. Step of preparing a nanofiber fabric composed of polyethylene terephthalate (PET) and polyvinylidene fluoride; A step of forming liquid graphene by mixing graphene powder and acrylic resin solution; A step of manufacturing a nanofilter fabric including a graphene coating layer by repeatedly applying the prepared liquid graphene to the surface of the nanofiber fabric and drying the nanofiber fabric to which the liquid graphene has been applied; A step of cutting the above nanofilter fabric, inner fabric and outer fabric into a predetermined pattern that is the same or similar to each other; A step of manufacturing a mask body by welding the edges of the inner and outer skins obtained by cutting with the nanofilter obtained by cutting in between; and A method for manufacturing a mask for fire and disaster preparedness, characterized in that it includes a step of connecting two upper and lower fixing straps to the left and right sides of the mask body by welding.

10. In paragraph 9, A method for manufacturing a mask for fire and disaster preparedness, characterized in that, before the step of manufacturing the mask body, it further includes a step of forming a carbon monoxide neutralizing filter layer containing manganese dioxide and copper mixed so that the molar ratio of Mn and Cu is approximately 2.1:1 to 3:1 on the inner skin or the outer skin.

11. In paragraph 9, Before the step of manufacturing the above mask body, a step of manufacturing a carbon monoxide neutralizing filter is further included by forming a layer containing manganese dioxide and copper mixed in a molar ratio of Mn and Cu of approximately 2.1:1 to 3:1 on a pre-prepared fiber. A method for manufacturing a mask for fire and disaster preparedness, characterized in that, in the step of manufacturing the mask body, the carbon monoxide neutralizing filter and the nano filter are interposed between the inner skin and the outer skin.

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