CN111035870A

CN111035870A - Multi-scene application filter-changeable multi-protection combined mask

Info

Publication number: CN111035870A
Application number: CN202010086669.2A
Authority: CN
Inventors: 鲍硕; 陈阳德; 鲍根华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-04-21

Abstract

The invention relates to a heavy-protection combined mask which is innovatively designed, air is filtered through an oral-nasal shield and a protective eyepiece for closed protection and a replaceable filter disc, so that invasion of harmful air, micro particles or infectious disease virus to a human body is effectively blocked, the direct pollution of the micro particles, the harmful substances and the virus to the replaceable filter disc is reduced through a front shield plate 114, meanwhile, the splash adhesion and diffusion transmission of respiratory droplets and aerosol in a specific environment carrying the infectious disease virus during close contact with interpersonal contact are shielded by matching with the protective eyepiece, and multiple safety protection is realized; the invention is suitable for cold-proof, wind-proof, warm-keeping, dust-proof, haze-proof, disease virus infection prevention and multi-scene application by plugging, replacing the protective lens and the replaceable filter disc in a combined mode; still through changing widget interchangeable filter disc, realize protecting mask used repeatedly, and simple structure, molding are bright and fast, low cost, use convenient, breathe more smoothly, can regard as the iteration replacement protective articles of ordinary gauze mask, have very high practical value and huge social.

Description

Multi-scene application filter-changeable multi-protection combined mask

Technical Field

The invention relates to a protective tool, in particular to a multi-scene application filter-changeable multi-protection combined mask.

Background

Masks are common in daily life, except for winter and severe environmental pollution, the masks are used for cold protection, warm keeping, dust prevention and haze prevention, and special or more professional medical masks capable of effectively preventing virus propagation are also provided. When the mask is used, the mask is mainly covered on the face of people to prevent cold wind, dust, harmful air and micro particles or viruses from invading into the body through the oral cavity or the nasal cavity of people, thus being harmful to health. However, the existing dust-haze-preventing and anti-virus mask is basically discarded after being used once, although the mask is worn to cover the majority of the face, the part which really needs to be shielded and protected is only the mouth and nose parts of people, namely, the part of the mask which actually plays a protective role accounts for less than half of the area of the whole mask, and the mask can be discarded after being used once, so that huge waste of resources is caused, and unnecessary economic burden is brought to consumers. Relative gauze mask can only disposable defect, and current multiple protective mask product filters harmful air through advancing exhaust apparatus, prevents dust and prevent wind, and different professional protective mask have different guard action, both can used repeatedly, have stronger protecting effect again, make the consumer have more choices. However, most of the existing protective mask products have the problems of complex structure, inconvenient wearing, single function, limited use, and higher manufacturing cost and sale price, especially various professional protective masks, due to functional design reasons, the mask has strange appearance and shape, is incompatible with the daily life work and the travel environment scene of people and causes the rejection psychology of people, the non-professional work needs and the special scene requirements, and ordinary people do not accept to select the protective mask as a substitute of the mask for daily life work.

Aiming at the current situation, the multi-protection combined mask with the replaceable mask is innovatively designed, and the air filtering filter disc for protecting the mouth and nose parts can be adapted to wind prevention, warm keeping, dust prevention, haze prevention, virus propagation and invasion prevention more effectively and safely, and has the characteristics of multi-scene application and reusability.

Disclosure of Invention

The invention relates to a multi-scene application replaceable filter multiple protection combined mask, which comprises an oral-nasal shield, a replaceable filter, a protection eyepiece and a lock catch headband, and is characterized in that the oral-nasal shield is provided with a mask body, a filtering breathable sheet and a front shield plate; the mask body is provided with a breathing window, an upper clamping groove, a lower clamping groove and a mask gasket; the breathing window is arranged in the middle of the front side surface of the mask body and is movably connected with the filtering breathable sheet under the action of the upper clamping groove and the lower clamping groove; the upper clamping groove is fixedly arranged on the upper side of the breathing window of the mask body, and the lower clamping groove is fixedly arranged on the lower side of the breathing window of the mask body; the replaceable filter disc is a breathable filter disc, and a breathable filtering thin material is fixed through a filter disc frame; the filter frame is provided with an upper clamping pin movably connected with the upper clamping groove, a lower clamping pin movably connected with the lower clamping groove and hermetically attached and connected with the outer surface of the front side face of the periphery of the breathing window of the mask body through a filter gasket fixed on the back of the filter frame; meanwhile, the filter element frame is also movably connected with the front shield plate; the upper side of the front shield plate is fixed on the mask body through a connecting belt, the left side and the right side are provided with vent holes, and the lower end is in an open state; meanwhile, the front shield plate is also provided with shield plate buckles at the joints of the two sides and the mask body and movably connected with the mask body; the mask gasket is fixedly connected with the edge ring corresponding to the rear end of the mask body; meanwhile, the mouth-nose shield is fixedly connected with the protective eyepiece into a whole and is provided with a locking headband; the protective eyepieces are provided with an eyeshield frame and a pluggable lens; the eye-protecting frame is fixedly connected to the upper end of the mouth-nose shield, and the back of the eye-protecting frame is provided with an ocular gasket which is fixedly connected; meanwhile, lens slots are arranged on the inner sides of the two lens frames and are movably connected with the pluggable lenses; the pluggable lens is two, is embedded in the lens frame and is connected into a whole; the mouth-nose shield and the protective eyepieces are simultaneously provided with hanging rings and are fixedly sleeved with the locking headband.

Furthermore, the connecting band adopts high temperature resistant high elasticity high tenacity material, the flexible connection face guard body and front fender cover plate.

Furthermore, the filtering air-permeable sheet is a plug-in replaceable accessory,

the number of the layers of the arranged filtering and air-permeable thin materials is plural, and gaps are reserved among the filtering and air-permeable thin materials; the filtering and ventilating thin material is made of various materials.

Furthermore, the clamping feet are arranged into an upper clamping foot and a lower clamping foot, and the upper clamping foot and the lower clamping foot are respectively arranged on two sides of the front shield plate and movably connected with the bayonet at the corresponding position of the mask body.

Furthermore, a slot liner is arranged in the lens slot and is movably connected with the plug lens.

Furthermore, the locking headband is provided with a left side belt made of elastic materials, the left side belt is fixedly connected with hanging rings arranged on the left sides of the mouth-nose shield and the protective eyepieces, and a left belt section is fixedly connected with the left side belt; meanwhile, the locking headband is also provided with a right side belt made of elastic materials, the right side belt is fixedly connected with hanging rings arranged on the right sides of the mouth-nose shield and the protective eyepiece, and a fixedly connected right belt section is arranged; the left belt section is provided with a fixedly connected lock catch support and is movably connected with the right belt section; the locking buckle support is fixedly provided with a buckle head and a buckle ring; the buckle head is provided with buckle head clamping teeth which are movably connected with the right belt section, and meanwhile, the buckle ring is movably sleeved with the right belt section; the right belt section is provided with belt section clamping teeth and is movably connected with a clamping head arranged on the left belt section and a buckle head clamping tooth arranged on the buckle head.

Furthermore, the mask gasket, the filter gasket, the eyepiece gasket and the slot liner are made of high-temperature-resistant high-elasticity tough materials.

According to the heavy-protection combined mask innovatively designed by the invention, air is filtered through the mouth-nose shield and the protective eyepieces for closed protection and the replaceable filter disc, so that invasion of harmful air, micro particles or infectious disease viruses to a human body is effectively blocked, the replaceable filter disc () is directly polluted by the micro particles, the harmful substances and the viruses through the front shield plate (114), meanwhile, the protective eyepieces are matched, respiratory droplets and aerosol in a specific environment carrying infectious disease viruses during close contact with interpersonal contact are shielded from splashing adhesion and diffusion transmission, and multiple safety protection is realized; the invention is suitable for cold-proof, wind-proof, warm-keeping, sand-proof, haze and disease virus infection prevention multi-scene application by plugging, replacing the protective lens () and the replaceable filter disc () in a combined mode; the face mask is reusable by replacing small parts and the replaceable filter disc (), has the advantages of simple structure, clear shape, low cost, convenience and quickness in use and smooth breathing, can be used as an iterative replacement protective article of a common face mask, and has high practical value and huge social benefit.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic right-hand partial cross-sectional view of FIG. 1;

FIG. 3 is a schematic rear view of FIG. 1;

FIG. 4 is a schematic top view of FIG. 1;

FIG. 5 is an exploded schematic view of FIG. 1;

FIG. 6 is an enlarged partial cross-sectional view taken at A of FIG. 2;

fig. 7 is a partially enlarged schematic view at B of fig. 4;

fig. 8 is an enlarged schematic view of the right-hand embodiment of fig. 1.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, and fig. 8, the multi-scene application interchangeable filter multiple protection combined mask of the present invention comprises an oronasal shield, an interchangeable filter, protective eyepieces, and a locking headband 105, and is characterized in that the oronasal shield is provided with a mask body 106, a filter breathable sheet 112, and a front shield plate 114; the mask body 106 is provided with a breathing window 208, an upper clamping groove 111, a lower clamping groove 118 and a mask gasket 203; the breathing window 208 is arranged in the middle of the front side surface of the mask body 106 and is movably connected with the filtering breathable sheet 112 under the action of the upper clamping groove 111 and the lower clamping groove 118; the upper clamping groove 111 is fixedly arranged on the upper side of the breathing window 208 of the mask body 106, and the lower clamping groove 118 is fixedly arranged on the lower side of the breathing window 208 of the mask body 106; the replaceable filter disc is a ventilating filter disc 112, and a ventilating filtering thin material 207 is fixed through a set filter disc frame 115; the filter frame 115 is provided with an upper clamping pin 113 movably connected with the upper clamping groove 111, and is also provided with a lower clamping pin 117 movably connected with the lower clamping groove 118, and is in close fit connection with the outer surface of the front side surface of the periphery of the breathing window 208 of the mask body 106 through a filter gasket 209 fixed on the back surface of the filter frame 115; meanwhile, the filter frame 115 is also movably connected with the front shield plate 114; the upper side of the front shield plate 114 is fixed on the mask body 106 through a connecting belt 107, the left side and the right side are provided with vent holes 801, and the lower end is in an open state; meanwhile, the front shield plate 114 is also provided with a shield plate buckle at the joint of the two sides and the mask body 106 to be movably connected with the mask body 106; the mask gasket 203 is fixedly connected with the edge ring corresponding to the rear end of the mask body 106; meanwhile, the mouth-nose shield is fixedly connected with the protective eyepiece into a whole, and is provided with a locking headband 105; the protective eyepieces are provided with an eyeshield frame 101 and a pluggable lens 104; the eye protection frame 101 is fixedly connected to the upper end of the mouth-nose shield, and an eyepiece gasket 201 which is fixedly connected is arranged on the back surface of the eye protection frame 101; meanwhile, lens slots 102 are arranged on the inner sides of the two lens frames and are movably connected with the plug lenses 104; the pluggable lens 104 is two pieces which are embedded in the lens frame 103 and connected into a whole; the mouth-nose shield and the protective eyepieces are simultaneously provided with hanging rings and are fixedly sleeved with the locking headband 105.

The connecting belt 107 is made of high-temperature-resistant, high-elasticity and high-toughness material and flexibly connects the mask body 106 and the front shield plate 114.

The filter air-permeable sheet 112 is a plug-in replaceable fitting,

the number of layers of the arranged filtering and air-permeable thin materials 207 is plural, and gaps are reserved among the filtering and air-permeable thin materials 207; the filtering and air-permeable sheet 207 is made of a plurality of materials of different materials.

The cover plate buckle is arranged to be an upper buckle 119 and a lower buckle 116, and the upper buckle 110 and the lower buckle 116 are respectively arranged on two sides of the front cover plate 114 and movably connected with the bayonet 205 at the corresponding position of the mask body 106.

The lens slot 102 is provided with a slot liner 601 therein and is movably connected with the plug lens 104.

The locking headband 105 is provided with a left side band made of elastic materials, the left side band is fixedly connected with hanging rings arranged on the left sides of the mouth-nose shield and the protective eyepiece, and a left band section 108 in fixed connection is arranged; meanwhile, the locking headband 105 is also provided with a right side belt made of elastic material, the right side belt is fixedly connected with hanging rings arranged on the right sides of the mouth-nose shield and the protective eyepiece, and a fixedly connected right belt section 109 is arranged; the left belt section 108 is provided with a fixedly connected locking buckle support 202 and is movably connected with the right belt section 109; the locking buckle holder 202 is fixedly provided with a buckle head 204 and a buckle ring 301; the buckle head 204 is provided with buckle head clamping teeth 206 which are movably connected with the right belt section 109, and meanwhile, the buckle ring 301 is movably sleeved with the right belt section 109; the right belt segment 109 is provided with a belt segment latch 401 and is movably connected with a buckle head 204 arranged on the left belt segment 108 and a buckle head latch 206 arranged on the buckle head 204.

The mask gasket 203, the filter gasket 209, the eyepiece gasket 201 and the slot liner 601 are made of high temperature resistant, high elastic and tough materials.

Embodiments of the oronasal Shield

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, the multi-scene application replaceable filter multiple protection combined mask of the present invention is first used, the mask body 106 is held by one hand, the bottom edge of the front cover plate 114 is buckled by one hand, the front cover plate 114 is turned upwards under the action of the connecting band 107, the separately configured filter air-permeable sheet 112 is torn to seal the small package, the lugs of the filter air-permeable sheet 112 arranged on the filter frame 115 are pinched, the filter air-permeable sheet 112 is inserted along the upper clamping groove 111 and the lower clamping groove 118 of the upper and lower parts of the breathing window 208 of the mask body 106, the filter frame 115 is tightly jointed with the mask body 106 under the action of the elastic filter gasket 209 made of silica gel material arranged on the back of the filter frame 115, then the front cover plate 114 is put down, and the front cover plate 114 is clamped into the clamping buckles 205 arranged on the mask body 106, keeping stable connection; then, the locking headband 105 is arranged, the right band section 109 is clamped into the buckle head 204 fixedly connected with the left band section 108 to form a ring shape larger than the head circumference, the top end of the right band section 109 is inserted into the buckle ring 301 to keep the ring shape, the headband formed by the right band section 109, the left band section 108 and the mask body 106 of the mask body 106 is sleeved on the head, the mask body 106 is covered on the face, the connecting part of the mask body 106 and the right band and the left band is pinched by two hands, after the proper up-down left-right adjustment position, the two hands move backwards, the buckle head 204 on the left band section 108 is pinched by the left hand, the top end of the right band section 109 is pinched and pulled by the right hand, the locking bracket 202 arranged on the locking headband 105 is tightly attached to the head, the silica gel washer 201 arranged on the protective eyepiece and the mask washer 203 arranged on the mouth-nose shield are compressed to be tightly attached to the face, and under the combined action of the buckle head clamping teeth 206 in the buckle head 204 and the band section clamping teeth 401 and the buckle ring 301 on the, the locking headband 105 is locked to complete the airtight wearing of the protective mask.

After wearing the protective mask, the air exhaled by the user is exhausted through the air vents 801 of the mask body 106 and the hermetically connected filtering breathable sheets 112 inserted in the upper clamping grooves 111 and the lower clamping grooves 118 and through the air vents 801 at the two sides of the front shielding plate 114 and the open openings at the bottom, and the air inhaled by the user enters the sealed protective mask and further enters the respiratory tract of the user after being filtered through the filtering breathable thin material 207 of the filtering breathable sheets 112, such as melt-blown layer non-woven fabric; due to the effect of the front shield plate 114, harmful substances or spray of micro particles can be effectively prevented from splashing and adhering, spun-bonded non-woven fabrics on the outer layer of a common mask can be reduced, air impedance is reduced, and a plurality of layers of melt-blown non-woven fabrics are additionally arranged to enhance the filtering effect.

The replaceable filter disc is a plug-in replaceable component, the plurality of layers of filtering breathable thin materials 207 arranged on the filtering breathable disc 112 are arranged into an SMM or SMMM structure according to the relevant standards of mask production, four sides of the filtering breathable thin materials are hermetically fixed in the filter disc frame 115, and proper gaps are reserved between the two or more layers of filtering breathable thin materials 207, so that the filtering effect is improved, the air impedance is reduced, and the breathing and the ventilation of a user are facilitated.

The replaceable filter disc made of different filtering and ventilating materials can be plugged and replaced according to the use purpose or the environment scene requirements, and the replaceable filter disc is suitable for multiple scenes of life and workplaces with cold resistance, wind resistance, heat preservation, dust and haze prevention, disease and virus infection prevention and the like.

Embodiments of protective eyepiece

The protective eyepiece and the mouth-nose shield are also fixedly connected with the protective eyepiece into a whole, the protective eyepiece is provided with an eyepiece frame 101, lens slots 102 are arranged on the inner side of the eyepiece frame 101, when the plug lenses 104 are plugged, the lens frame 103 is held, two plug lenses 104 are simultaneously inserted into the two lens slots 102 of the eyepiece frame 101, the plug lenses 104 extrude slot liners 601 made of silica gel materials arranged in the lens slots 102, and the plug lenses 104 are tightly attached to the lens slots 102 to form a closed state.

After the plug-in lens 104 is pulled out, the eye protection frame 101 forms an empty frame state, and the decorative effect is presented; the eyewear frame 101 also provides sufficient space to allow a user wearing the eyewear to wear the protective mask of the present invention.

According to the use purpose or the requirements of environmental places, the pluggable lens 104 is plugged or pulled out, and the pluggable lens is suitable for multiple scenes of life and workplaces such as cold prevention, wind prevention, warm keeping, dust and haze prevention, disease and virus infection prevention and the like. When wearing the mouth nose guard shield of protective face mask, the protection eyepiece also accomplishes simultaneously and wears, at the state of plug lens 104 to under the combined action of hasp bandeau 105 and the elastic material at goggles frame 101 back like eyepiece packing ring 201 of silica gel class material, form the airtight protection to the eye.

Protective mask removal and reuse embodiment

The protective eyepiece and the mouth-nose shield are detached, firstly, the left hand holds the buckle head 204 on the left belt segment 108 of the buckle headband 105, the right hand holds the right belt segment 109 and draws out the top end part of the right belt segment 109 from the buckle ring 301, then the right belt segment 109 is drawn out from the buckle head 204 upwards, so that the belt segment latch 401 of the right belt segment 109 is separated from the buckle head latch 206 of the buckle head 204, the buckle headband 105 is loosened, the connecting parts of the mask body 106 and the right side belt and the left side belt are held by the two hands, and the protective mask is taken down from the head; then, holding the mask body 106 with one hand, buckling the bottom edge of the front shield plate 114 with the other hand, turning up the front shield plate 114 under the action of the connecting band 107, uncovering the front shield plate 114, pinching the lugs of the filtering breathable sheet 112, drawing out the filtering breathable sheet 112 from the upper clamping groove 111 and the lower clamping groove 118 at the upper and lower parts of the breathing window 208 of the mask body 106, and disposing and discarding; then the plug-in lens 104 is pulled out, and is cleaned and disinfected together with the protective mask, according to the composite material of the reusable protective mask, high-temperature boiling or ultraviolet irradiation can be carried out, or sterilization and disinfection can be carried out by using various modes such as ozone, disinfectant and the like, then the plug-in lens 104 is inserted into the lens slot 102 again or is stored separately, the locking head band 105 is arranged, the right band section 109 is clamped into the buckling head 204 fixedly connected with the left band section 108 to form a ring shape larger than the head circumference, and the top end of the right band section 109 is inserted into the buckling ring 301 to keep the ring shape for the next use.

Finally, it should be noted that the above-mentioned embodiments illustrate rather than limit the technical solutions of the present invention, and those skilled in the art may make modifications, additions and substitutions without departing from the basic technical spirit and design concept of the present invention.

Claims

1. A multi-scene application replaceable filter multi-protection combined mask comprises an oral-nasal shield, a replaceable filter, protection eyepieces and a locking headband (105), and is characterized in that the oral-nasal shield is provided with a mask body (106), a filtering breathable sheet (112) and a front shield plate (114); the mask body (106) is provided with a breathing window (208), an upper clamping groove (111), a lower clamping groove (118) and a mask gasket (203); the breathing window (208) is arranged in the middle of the front side surface of the mask body (106) and is movably connected with the filtering breathable sheet (112) under the action of the upper clamping groove (111) and the lower clamping groove (118); the upper clamping groove (111) is fixedly arranged on the upper side of a breathing window (208) of the mask body (106), and the lower clamping groove (118) is fixedly arranged on the lower side of the breathing window (208) of the mask body (106); the replaceable filter disc is an air-permeable filter disc (112), and a filtering air-permeable thin material (207) is fixed through a set filter disc frame (115); the filter frame (115) is provided with an upper clamping pin (113) movably connected with the upper clamping groove (111), and is also provided with a lower clamping pin (117) movably connected with the lower clamping groove (118), and is in close fit connection with the outer surface of the front side face of the periphery of the breathing window (208) of the mask body (106) through a filter gasket (209) fixed on the back of the filter frame (115); meanwhile, the filter element frame (115) is also movably connected with the front shield plate (114); the upper side of the front shield plate (114) is fixed on the mask body (106) through a connecting belt (107), the left side and the right side are provided with vent holes (801), and the lower end is in an open state; meanwhile, the front shield plate (114) is also provided with a shield plate buckle at the joint of two sides and the mask body (106) to be movably connected with the mask body (106); the mask gasket (203) is fixedly connected with the edge ring corresponding to the rear end of the mask body (106); meanwhile, the mouth-nose shield is fixedly connected with the protective eyepiece into a whole and is provided with a locking headband (105); the protective eyepieces are provided with an eyeshield frame (101) and a plug lens (104); the eye protection frame (101) is fixedly connected to the upper end of the mouth-nose shield, and an eyepiece gasket (201) which is fixedly connected is arranged on the back of the eye protection frame (101); meanwhile, lens slots (102) are arranged on the inner sides of the two lens frames and are movably connected with the plug lenses (104); the plug-pull lenses (104) are two, are embedded in the lens frame (103) in a clamping manner and are connected into a whole; the mouth-nose shield and the protective eyepieces are simultaneously provided with hanging rings and are fixedly sleeved with a locking headband (105).

2. The multiple-protection combined mask with replaceable filter for multiple scenes according to claim 1, wherein the connecting band (107) is made of a high temperature resistant, high elasticity and high toughness material, and flexibly connects the mask body (106) and the front shield plate (114).

3. The multiple protective composite face mask with replaceable filter for multiple applications as claimed in claim 1, wherein said filter breather (112) is a plug-in replaceable fitting,

the number of layers of the arranged filtering and air-permeable thin materials (207) is plural, and gaps are reserved among the filtering and air-permeable thin materials (207); the filtering and ventilating thin material (207) adopts a plurality of materials with different materials.

4. The combined mask with multiple protection and changeable filter for multiple applications according to claim 1, wherein the cover plate fasteners are arranged as an upper fastener (119) and a lower fastener (116), and the upper fastener (110) and the lower fastener (116) are respectively arranged on two sides of the front cover plate (114) and movably connected with the bayonet (205) at the corresponding position of the mask body (106).

5. The multiple protective composite face mask with replaceable filter for multiple applications as claimed in claim 1, wherein the lens slots (102) are provided with slot liners (601) and are movably connected to the pluggable lenses (104).

6. The multi-scene application replaceable filter multi-protection combined mask as claimed in claim 1, wherein the locking headband (105) is provided with a left side strap made of elastic material, the left side strap is fixedly connected with a hanging ring arranged on the left side of the mouth-nose shield and the protective eyepiece, and a fixedly connected left strap section (108) is arranged; meanwhile, the locking headband (105) is also provided with a right side belt made of elastic materials, the right side belt is fixedly connected with hanging rings arranged on the right sides of the mouth-nose shield and the protective eyepiece, and a fixedly connected right belt section (109) is arranged; the left belt section (108) is provided with a fixedly connected lock catch support (202) and is movably connected with the right belt section (109); the locking buckle holder (202) is fixedly provided with a buckle head (204) and a buckle ring (301); the buckle head (204) is provided with buckle head clamping teeth (206) which are movably connected with the right belt section (109), and meanwhile, the buckle ring (301) is movably sleeved with the right belt section (109); the right belt section (109) is provided with a belt section latch (401) and is movably connected with a buckle head (204) arranged on the left belt section (108) and a buckle head latch (206) arranged on the buckle head (204).

7. The multiple-protection composite face mask with replaceable filter for multiple applications in multiple scenes of claim 1, wherein the face mask gasket (203), the filter gasket (209), the eyepiece gasket (201), and the slot liner (601) are made of high temperature resistant, high elastic and flexible materials.