CN209449707U - A kind of compound low-resistance protective mask of active carbon - Google Patents

Abstract

The utility model relates to a kind of compound low-resistance protective masks of active carbon, it is related to mask technical field, including mask body piece, ear band, the mask body piece includes surface layer, bottom and the composite layer being folded between surface layer and bottom, and the composite layer includes High dust holding low-resistance filtering layer and active carbon layer.The application can in air particle and smell by filtering, meanwhile, respiratory resistance is smaller, and using effect is preferable.

Description

A kind of compound low-resistance protective mask of active carbon

Technical field

The utility model relates to mask technical fields, more particularly, to a kind of compound low-resistance protective mask of active carbon.

Background technique

Active carbon mask is common mask category, can absorb and filter peculiar smell, plane face mask in market, folding mouth mask and Cup type mask has portioned product to use active carbon layer, and activated carbon filter layer is limited to preferably high-density large-particle effect Technique bulky grain active carbon cloth is frequently used in cup type mask, and industrial application, respiratory resistance is larger, and civilian part, at present city It is carried on sheet type active carbon layer from the point of view of material angle in carbon dust using the active powdered carbon filtering layer of sheet type on field It measures less, and extremely concentrates, lose powder in order to prevent, it is more to adhere to glue used for active carbon when production, and it is micro- also to enclose active carbon Hole reduces actual performance, although peculiar smell adsorption can be played the role of, absorb and filter effect and active carbon utilization rate compared with It is low.Sheet type also causes respiratory resistance larger because accumulating active powdered carbon in one layer of very thin fiber cloth, will affect entire mouth The breathing comfort level of cover is experienced.

And high efficiency lower resistance mask is that the most crucial exploitation of mask product is pursued, reducing resistance means more comfortably to wear It wears, and efficiently means more effectively protect wearing more longlasting, be particularly important in the case where polluting relatively heavy environment, it is special It is not some industrial application scenes, often requires that a mask can stop largely to continue dust over one day with continuous wear.Mesh The means that preceding mask solves efficient low-resistance mainly use electrostatic cotton, but the electrostatic cotton of mask products application is limited in the industry at present Fibre structure dust containing capacity is limited, and in the case where reducing atmidometer, the thickness of electrostatic cotton or grammes per square metre use are still limited, and thinks further Vapour lock increase electrostatic cotton dosage will be sacrificed by increasing efficiency.Therefore thinner fiber and bigger fibre space are needed, so that Grain sorption channel is longer, adsorption probability is bigger, while also having the more particulate matters of bigger space.

Make a general survey of mask product in the market, respiratory resistance and filter efficiency, the dust containing capacity of active carbon layer and filtration material layer itself Between balance there are also to be solved, the two is then more to increase the breathing of mask when guaranteeing strainability to hinder when using simultaneously Power.

Utility model content

The purpose of the utility model is to provide a kind of compound low-resistance protective masks of active carbon, can be to the particle in air With smell by filtering, meanwhile, respiratory resistance is smaller, and using effect is preferable.

The above-mentioned purpose of utility model of the utility model has the technical scheme that

A kind of compound low-resistance protective mask of active carbon, including mask body piece, ear band, the mask body piece includes face Layer, bottom and the composite layer being folded between surface layer and bottom, the composite layer include High dust holding low-resistance filtering layer and active carbon Layer.

By using above-mentioned technical proposal, by the composite layer of setting, so that active charcoal simultaneously in mask layer structure The advantage of layer and High dust holding low-resistance filtering layer two, but be the two unification in structure, so that mask overall structure is relatively thin.It is wherein high Hold dirt low-resistance filtering layer, so that certain stereochemical structure is presented inside mask body piece, effectively can filter and accommodate particulate matter, Certain period of time internal respiration resistance will not obviously increase.Peculiar smell can be absorbed, be made by the active carbon layer being arranged simultaneously Entire mask breathing smooth degree more preferably, meanwhile, Experience Degree is more preferable.

The utility model is further arranged to: the active carbon layer is laid in inside the High dust holding low-resistance filtering layer, described The active carbon particle uniform adhesion of active carbon layer (14) is on fiber.

By using above-mentioned technical proposal, spatially structure is evenly distributed between surface layer and bottom active carbon layer, thus, Compared with prior art, when user uses, under the premise of reaching filtering purpose, active carbon layer utilizes mask in use Rate is higher, meanwhile, more preferably, customer experience degree is more preferably for the breathing smooth degree of entire mask.

The utility model is further arranged to: the High dust holding low-resistance filtering layer includes being laid between the surface layer and bottom Fluffy state High dust holding filter layer and be uniformly laid on the electret melt-blown layer of fluffy state High dust holding filter layer side；The active carbon Layer is evenly laid out in the fluffy state High dust holding filter layer.

The utility model is further arranged to: the fluffy state High dust holding filter layer is made of crimped fibre stereochemical structure, Contain electret in the fluffy state High dust holding filter layer；The electret melt-blown layer is the melt-blown of highdensity electret fiber Nonwoven fabric construct.

By using above-mentioned technical proposal, can be filtered the air by electret melt-blown layer, filter effect is preferable, but It is that its dust containing capacity is lower.Prefiltration can be carried out by using fluffy state High dust holding filter layer, stop most of particulate matter, it is only few Part tiny particles content passes through such as PM2.5, PM0.3, and last high efficiency filter is then carried out by electret melt-blown, can be mitigated in this way The work load of electret melt-blown improves and uses duration, and hinders after greatly slowing down filters because breathing caused by particulate matter accumulation Power declines problem, that is, realizes prolonged lower resistance working condition.Fluffy state High dust holding filter layer is crimped fibre stereochemical structure, Fiber contains electret, and fibre space distance uniformly, by the electret being arranged inside it, can be enhanced to air Filter effect, meanwhile, compared to needled conventionally electrostatic cotton have the characteristics that distribution of space charge uniformity height and hold dirt space it is big, The effect and utilization rate of the Electrostatic Absorption function of electret are improved, and there is higher filter efficiency, while being enhanced vertical Body fibre structure reduces the respiratory resistance of common needle thorn electrostatic cotton in the market instead, and the utility model mask can High dust holding amount Filtering layer enhances mask particulate matter filter capacity, while significantly reducing influence of the electrostatic cotton to mask entirety respiratory resistance.

It is uniform-distribution with the macroscopic active carbon small powder active carbon particle in fibre space and forms active carbon layer, The structure has the active carbon that component is often used times over market mask product, due to fluffy space structure and a large amount of carbon Grain distribution, the action time and contact area, the active carbon powder of high degree of dispersion for increasing filtering gas can allow suction-operated More effect and utilization rate, while the dimensional fibre structure thickened is reduced instead caused by common active carbon cloth in the market Respiratory resistance, the utility model mask can enhance active carbon mask peculiar smell adsorption and filter energy by fluffy state High dust holding filter layer Power, while significantly reducing influence of the active carbon layer to mask entirety respiratory resistance.It makes peculiar smell adsorption more efficient, is substantially reduced simultaneously Respiratory resistance, and the service life of mask is relatively long.

The utility model is further arranged to: being provided with functional layer between the surface layer and composite layer.

The utility model is further arranged to: the functional layer includes hot air cotton layer, antibacterial nonwoven cloth layer, anion layer It is one or more of.

By using above-mentioned technical proposal, the functional layer includes one kind of electret melt-blown layer, hot air cotton, antibacterial nonwoven cloth Or several or above-mentioned several composite layer.

The utility model is further arranged to: the surface layer is made of spun-bonded non-woven fabrics or spunlace non-woven cloth material；It is described Bottom is the compound nonwoven layer of low reverse osmosis hydrophilic nonwoven layer of cloth, nontoxic antibacterial nonwoven cloth layer or both.

The utility model is further arranged to: it is provided with the second fixing line at the edge contour of the mask body piece, Second fixing line is that several " M " shape patterns are arranged.

By using above-mentioned technical proposal, surface layer and bottom edges can be added by the second fixing line of setting Gu being at the same time, " M " shape by setting, so that mask is whole more preferably beautiful.

The utility model is further arranged to: the protective mask further includes the breathing that the mask body on piece is arranged in Valve；The breather valve includes pedestal and the valve deck that is interlocked with pedestal, and cavity, the bottom are formed between the pedestal and valve deck Through-hole is offered on seat, the through hole is provided with support rod, is provided with valve block, the valve in cavity and on support rod It covers and offers several ventholes, be connected between the venthole and the cavity.

By using above-mentioned technical proposal, by the breather valve of setting, it can more preferably be user-friendly for breathing, wear It is breathed during wearing masks more preferably smooth.For wearer when wearing, pedestal one side is close to wearer, and wearer is in the when institute that exhales The positive pressure of discharge gas can blow valve block open, so that gas is discharged from the venthole of valve deck, it in this way can be rapidly by gas Body excludes, and avoids generating moisture in mask, and feeling of oppression and heat when reducing using mask improves the wear comfort of wearer.Work as pendant In air-breathing, generated negative pressure can automatically close valve block wearer, to avoid the pollutant of inspiration external environment.

The utility model is further arranged to: it is convex that the valve deck far from the one side of the valve block is fixedly connected with first Rib, first fin are provided with a pair, and two first fins are parallel to each other and are located at the two sides that valve deck is located remotely from each other, the outlet Hole is provided with several in the two sides of first fin；It one end of first fin and is provided between two first fins Second fin, second fin is V-shaped, and the venthole is provided with several in the lateral wall of second fin；It is described Split channel is formed between first fin and second fin.

By using above-mentioned technical proposal, when exhaling, generated gas is discharged wearer from each venthole, due to The middle position of valve deck also offers venthole, can further shunt to gas, can shorten a part of gas in this way Travel, enable this portion gas from the venthole in middle position be discharged, stop inside mask to reduce gas The time is stayed, avoids generating moisture in mask, improves the comfort level of wearer.At the same time, the formation of split channel, can be to row Gas out is shunted, and is avoided gas from all gushing out and is formed hot-fluid outside mask, and wearer is made to generate feeling of oppression and heat.

In conclusion the utility model has the following beneficial effects:

1, by the High dust holding low-resistance filtering layer of setting, so that certain stereochemical structure is presented inside mask body piece, it can Effectively filtering and receiving particulate matter, respiratory resistance will not obviously increase within a certain period of time, at the same time, so that active carbon layer Spatially structure is evenly distributed between surface layer and bottom, thus, compared with prior art, user was in use, mask was reaching Filter purpose under the premise of, active carbon layer utilization rate is higher in use, meanwhile, the breathing smooth degree of entire mask more preferably, Customer experience degree is more preferably；

2, it can be filtered the air by electret melt-blown layer, filter effect is preferable, but its dust containing capacity is lower.Pass through Prefiltration can be carried out using fluffy state High dust holding filter layer, stops most of particulate matter, only small part tiny particles content passes through Such as PM2.5, PM0.3, last high efficiency filter is then carried out by electret melt-blown, the work that can mitigate electret melt-blown in this way is negative Load improves and uses duration, and greatly slows down after filters because of respiratory resistance decline problem caused by particulate matter accumulation, that is, realizes Prolonged lower resistance working condition.Fluffy state High dust holding filter layer is crimped fibre stereochemical structure, and fiber contains electret, Uniformly, by the electret being arranged inside it, the filter effect to air can be enhanced in fibre space distance, meanwhile, Have the characteristics that distribution of space charge uniformity height and appearance dirt space are big compared to needled conventionally electrostatic cotton, improves the quiet of electret The effect and utilization rate of Electro Sorb function, and there is higher filter efficiency, while the dimensional fibre structure enhanced drops instead The respiratory resistance of low needle thorn electrostatic cotton common in the market, the utility model mask can High dust holding amount filtering layer, enhance mask Grain object filter capacity, while significantly reducing influence of the electrostatic cotton to mask entirety respiratory resistance.

3, it is uniform-distribution with the macroscopic active carbon small powder active carbon particle in fibre space and forms active carbon Layer, the structure have the active carbon that component is often used times over market mask product, due to fluffy space structure and largely Carbon granules distribution, the action time and contact area, the active carbon powder of high degree of dispersion for increasing filtering gas can allow absorption Effect has more effect and utilization rate, while the dimensional fibre structure thickened reduces common active carbon cloth in the market instead and made At respiratory resistance, the utility model mask can by fluffy state High dust holding filter layer, enhance active carbon mask peculiar smell adsorption mistake Filter ability, while significantly reducing influence of the active carbon layer to mask entirety respiratory resistance.Make peculiar smell adsorption more efficient, while significant Respiratory resistance is reduced, and the service life of mask is relatively long；

4, when exhaling, generated gas is discharged wearer from each venthole, since the middle position of valve deck is also opened Equipped with venthole, further gas can be shunted, the travel of a part of gas can be shortened in this way, make this part Gas can be discharged from the venthole in middle position, to reduce residence time of the gas inside mask, avoid producing in mask Raw moisture, improves the comfort level of wearer.At the same time, the formation of split channel can shunt the gas of discharge, keep away Exempt from gas and all gush out to form hot-fluid outside mask, wearer is made to generate feeling of oppression and heat.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the schematic diagram of a layer structure of prominent mask body piece in the utility model；

Fig. 3 is the cross-sectional view of prominent High dust holding low-resistance filtering layer and layer of charcoal in the utility model；

Fig. 4 is the schematic diagram of prominent functional layer in the utility model；

Fig. 5 is the perspective view of the explosion of prominent breather valve in the utility model；

Fig. 6 is the schematic diagram of prominent valve deck in the utility model；

Fig. 7 is the schematic diagram of prominent valve block in the utility model；

Fig. 8 is the schematic diagram of prominent nose bridge bar in the utility model.

Appended drawing reference: 1, mask body piece；11, surface layer；12, bottom；13, High dust holding low-resistance filtering layer；131, fluffy state is high Hold dirt filter layer；132, electret melt-blown layer；14, active carbon layer；15, functional layer；16, sizing strip；17, nose bridge bar；18, first is solid Alignment；19, the second fixing line；2, ear band；3, breather valve；31, pedestal；311, through-hole；312, support rod；313, the first clamping is convex Item；32, valve deck；321, venthole；322, the second clamping raised line；323, the first fin；324, the second fin；325, limited post； 33, cavity；34, interconnecting piece；341, positioning column；35, valve block；351, location hole；36, split channel.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

It referring to Fig.1, is a kind of compound low-resistance protective mask of active carbon disclosed by the utility model, including mask body piece 1 and it is connected to the ear bands 2 of 1 two sides of mask body piece, when in use, passes through operation ear band 2 and wear mask body piece 1.

Referring to figs. 2 and 3, mask body piece 1 include surface layer 11, bottom 12 and be folded in surface layer 11 and bottom 12 it Between composite layer, wherein composite layer includes active carbon layer 14 and High dust holding low-resistance filtering layer 13, and the High dust holding low-resistance for passing through setting is filtered Layer 13 can filter the air, at the same time, receiving particulate matter that can be more, without obviously increasing resistance, meanwhile, lead to The active carbon layer 14 for crossing setting absorbs the peculiar smell in air, is filtered.

Wherein, surface layer 11 is made of spun-bonded non-woven fabrics or spunlace non-woven cloth material, and bottom 12 is low reverse osmosis hydrophilic nonwoven Layer of cloth, nontoxic antibacterial nonwoven cloth layer or both compound nonwoven layer.Different surface layers 11 can be made according to different needs With bottom 12.

With reference to Fig. 3, High dust holding low-resistance filtering layer 13 includes the fluffy state High dust holding mistake being laid between surface layer 11 and bottom 12 Filtering layer 131 and the electret melt-blown layer 132 for being uniformly laid on fluffy 131 side of state High dust holding filter layer.Wherein, fluffy state High dust holding Filter layer 131 is made of crimped fibre stereochemical structure, and fiber contains electret, and fibre space distance is uniformly, visible for naked eyes Fluffy state there is certain thickness filtering layer, effectively can filter and accommodate particulate matter, with using the time to increase, certain time It is interior to obviously increase respiratory resistance, so that air permeable mask is more smooth, wear more preferably comfortable.

At the same time, active carbon is evenly distributed on fiber surface with fine grained or pulverulence.The active carbon of high degree of dispersion Powder can allow the suction-operated of active carbon to have more effect and utilization rate, while the dimensional fibre structure thickened reduces city instead Respiratory resistance caused by common active carbon on field, the filter layer play peculiar smell while playing High dust holding filtration of particulate matters Filtration.

The application is increased by the active carbon layer 14 and electret melt-blown layer 132 that are arranged in fluffy state High dust holding filter layer 131 The strong distribution of space charge uniformity of traditional electret melt-blown layer 132, the space He Rongchen improves the quiet of electret melt-blown layer 132 The effect and utilization rate of Electro Sorb function.The dimensional fibre structure thickened reduces the breathing of common electrostatic cotton in the market instead Resistance, while the active carbon powder of compound high degree of dispersion can allow suction-operated to have more effect and utilization rate, reduce individually Active carbon filtering layer use, inspiratory resistance can be further decreased.The utility model mask, by fluffy state High dust holding filter layer 131 and electrostatic cotton be combined into one, reduce thickness, reduce certain inspiratory resistance, and realize simultaneously particulate matter protection and it is different Taste absorbs and filter ability.

With reference to Fig. 4, it is provided with functional layer 15 between surface layer 11 and High dust holding low-resistance filtering layer 13, wherein functional layer 15 includes The one or more of hot air cotton layer, antibacterial nonwoven cloth layer, anion layer can eliminate the unusual smell, dehumidify, antibacterial by the layer, from And can assign mask different service performances, thus, so that the mask have it is multi-functional, be adapted to different yards It closes.

With reference to Fig. 1 and Fig. 4, it is provided on mask body piece 1 and the structure between surface layer 11 and bottom 12 is fixed The first fixing line 18, the first fixing line 18 is symmetrical arranged along 1 center of mask body piece to the two sides close to ear band 2, and bead Cover vertical centerline is arranged at intervals with several.The second fixing line 19 is provided on the edge contour of mask body piece 1, wherein Second fixing line 19 is that the pattern of several " M " shapes arranges to be formed, and passes through the first fixing line 18 and the second fixing line 19 of setting Layer structure between surface layer 11 and bottom 12 can be fixed, thus, it is more preferably stable in use.At the same time, By setting several " M " shape patterns for the second fixing line 19, so that mask is whole more preferably beautiful.

With reference to Fig. 1 and Fig. 5, which further includes the breather valve 3 being arranged on mask body piece 1.

With reference to Fig. 5 and Fig. 6, breather valve 3 is including pedestal 31 and the valve deck 32 being combined, pedestal 31 are engaged with pedestal 31 Cavity 33 is formed between valve deck 32.Through-hole 311 is offered on pedestal 31, cavity 33 is communicated with the outside by through-hole 311, Several support rods 312 are fixedly connected at through-hole 311, several support rods 312 circumference array at through-hole 311 is distributed, Several support rods 312 are fixed together to form interconnecting piece 34 far from one end of 31 inner wall of pedestal.In cavity 33 and position In being provided with valve block 35 on support rod 312, offer several ventholes 321 on valve deck 32, venthole 321 and cavity 33 with And outside air is connected.

Wearer is when wearing, face of 31 one side of pedestal close to wearer, wearer's gas be discharged when exhaling Positive pressure can blow valve block 35 open, so that gas be made to be discharged from the venthole 321 of valve deck 32, can rapidly arrange gas in this way It removes, avoids generating moisture in mask body piece 1, feeling of oppression and heat when reducing using mask improves wear comfort.When wearer exists When air-breathing, generated negative pressure can automatically be closed valve block 35, to avoid the pollutant of inspiration external environment, the mask wearing side Just, and cost is relatively low, can effectively reduce polluted gas injury caused by the body of people.

Spaced horizontal is fixedly connected with the first clamping raised line 313 on the outer wall of pedestal 31, on the inner wall of valve deck 32 with First clamping 313 one-to-one correspondence level of raised line is installed with the second clamping raised line 322.

When valve deck 32 to be fastened on pedestal 31, make the second clamping raised line 322 from wherein the one of the first clamping raised line 313 Side snaps fit onto other side, in such manner, it is possible to which pedestal 31 and valve deck 32 are snapped together, valve deck 32 is not fallen off.

The first fin 323 is fixedly connected on one side of the valve deck 32 far from pedestal 31, the first fin 323 is provided with two Item, two the first fins 323 are located at the two sides that valve deck 32 is located remotely from each other and are parallel to each other, and it is convex that venthole 321 is then provided with first The two sides of rib 323.

It is fixedly connected with the second fin 324 in one end of the first fin 323, the second fin 324 is V-shaped, and is located at two Between first fin 323, the first fin 323 and the second fin 324 form " M " shape, and venthole 321 is also provided with the second fin On 324 lateral wall, and split channel 36 is formed between the first fin 323 and the second fin 324.

Wearer exhale when, generated gas is discharged from each venthole 321, due to valve deck 32 two sides and in Between position offer venthole 321, therefore, gas can be shunted, the movement of a part of gas can be shortened in this way Distance enables this portion gas to be discharged from the venthole 321 in middle position, thus when reducing stop of the gas inside mask Between, it avoids generating moisture in mask, improves the comfort level of wearer.And the formation of split channel 36, it can be to the gas of discharge It is further shunted, avoids gas from all gushing out and form hot-fluid outside mask, wearer is made to generate feeling of oppression and heat.

It is more stable on support rod 312 in order to be placed on valve block 35 in conjunction with Fig. 5 and Fig. 7, in several support rods 312 It is formed by interconnecting piece 34 and is fixedly connected with positioning column 341, positioning column 341 is protruded towards the direction close to valve deck 32, in valve Piece 35 offers location hole 351 compatible with positioning column 341 on the one side of pedestal 31, and positioning column 341 is inserted into Into location hole 351.In this way, positioning column 341 can be inserted in location hole 351 when being installed to valve block 35, from And can be improved the stability of valve block 35, avoid valve block 35 from shaking in pedestal 31.

In order to further improve the mounting stability of valve block 35, in valve deck 32, fixation connects in the one side of pedestal 31 It is connected to limited post 325, limited post 325 protrudes setting, the position of limited post 325 and positioning column towards the direction close to pedestal 31 341 position is corresponding.

In this way, when fastening valve deck 32, the limited post 325 on valve deck 32 is proper after valve block 35 is mounted on pedestal 31 It can be connected on valve block 35 well, valve block 35 can effectively be limited in this way, valve block 35 is avoided to occur in pedestal 31 Skew.

In conjunction with Fig. 4 and Fig. 8, in order to enable mask to be more bonded the bridge of the nose of wearer, mask body outside and Positioned at upper end middle position, level is fixedly connected with sizing strip 16.In this way, people, when wearing to mask, wearer passes through Sizing strip 16 is bent, the bending degree of mask can be adjusted, so that the bending radian of mask be made to be bonded wearer just The bridge of the nose, so that mask is more bonded the face of wearer, keep the protective action of mask more preferable.

Inside and position corresponding with sizing strip 16 in order to further increase the protective action of mask, in mask body Level is fixedly connected with nose bridge bar 17, and nose bridge bar 17 is equally able to carry out bending, in this way, can be made by bending nose bridge bar 17 Mask is more bonded the bridge of the nose of wearer, enhances the protection effect of mask, improves wear comfort.

It should be understood that scheme involved in the application can apply in ear-wearing type mask or wear-type mouth or In other mask products of person.

The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this The protection scope of type, therefore: it is practical new should all to be covered by this for the equivalence changes done according to the structure, shape, principle of the utility model Within the protection scope of type.

Claims (10)

1. a kind of compound low-resistance protective mask of active carbon, including mask body piece (1), ear band (2), it is characterised in that: described Mask body piece (1) includes surface layer (11), bottom (12) and the composite layer being folded between surface layer (11) and bottom (12), institute Stating composite layer includes High dust holding low-resistance filtering layer (13) and active carbon layer (14).

2. the compound low-resistance protective mask of a kind of active carbon according to claim 1, it is characterised in that: the active carbon layer (14) it is internal to be laid in the High dust holding low-resistance filtering layer (13), the active carbon particle uniform adhesion of the active carbon layer (14) is in fibre In dimension.

3. the compound low-resistance protective mask of a kind of active carbon according to claim 1, it is characterised in that: the High dust holding is low Resistance filtering layer (13) includes being laid on fluffy state High dust holding filter layer (131) between the surface layer (11) and bottom (12) and uniform It is laid on the electret melt-blown layer (132) of fluffy state High dust holding filter layer (131) side；The active carbon layer (14) it is evenly laid out In the fluffy state High dust holding filter layer (131).

4. the compound low-resistance protective mask of a kind of active carbon according to claim 3, it is characterised in that: the fluffy state is high Hold dirt filter layer (131) to be made of crimped fibre stereochemical structure, contains electret in the fluffy state High dust holding filter layer (131) Material；The electret melt-blown layer (132) is highdensity electret fiber melt spraying non-woven fabrics structure.

5. the compound low-resistance protective mask of a kind of active carbon according to claim 1, it is characterised in that: in the surface layer (11) functional layer (15) are provided between composite layer.

6. the compound low-resistance protective mask of a kind of active carbon according to claim 5, it is characterised in that: the functional layer It (15) include the one or more of hot air cotton layer, antibacterial nonwoven cloth layer, anion layer.

7. the compound low-resistance protective mask of a kind of active carbon according to claim 1, it is characterised in that: the surface layer (11) It is made of spun-bonded non-woven fabrics or spunlace non-woven cloth material；The bottom (12) be low reverse osmosis hydrophilic nonwoven layer of cloth, nontoxic antibacterial without The compound nonwoven layer of woven fabric layer or both.

8. the compound low-resistance protective mask of a kind of active carbon according to claim 1, it is characterised in that: in the mask sheet It is provided at the edge contour of body piece (1) the second fixing line (18), second fixing line (18) is several " M " shape patterns row Cloth forms.

9. the compound low-resistance protective mask of a kind of active carbon according to claim 1, it is characterised in that: the protective mask is also Including the breather valve (3) being arranged on the mask body piece (1)；The breather valve (3) includes pedestal (31) and and pedestal (31) valve deck (32) being interlocked forms cavity (33) between the pedestal (31) and valve deck (32), opens on the pedestal (31) Equipped with through-hole (311), support rod (312) are provided at the through-hole (311), in cavity (33) and are located at support rod (312) On be provided with valve block (35), offer several ventholes (321) on the valve deck (32), the venthole (321) with it is described Cavity is connected between (33).

10. the compound low-resistance protective mask of a kind of active carbon according to claim 9, it is characterised in that: the valve deck (32) one side far from the valve block (35) is fixedly connected with the first fin (323), and first fin (323) is provided with one Right, two first fins (323) are parallel to each other and are located at the two sides that valve deck (32) are located remotely from each other, and the venthole (321) is described The two sides of first fin (323) are provided with several；One end of first fin (323) and be located at two first fins (323) it Between be provided with the second fin (324), second fin (324) is V-shaped, and the venthole (321) is in second fin (324) lateral wall is provided with several；Split channel is formed between first fin (323) and second fin (324) (36)。