CN105617565A - Filtration type breathing mask - Google Patents

Abstract

The invention provides a filtering breathing mask, comprising a mask body and a filter body, an air chamber suitable for covering the mouth and nose is arranged on the inner side of the mask body, and an exhaust port is arranged on the wall of the air chamber; The interior of the filter body is provided with a fan and a filter element, wherein the filter element is arranged on the air intake passage of the fan, and a driving mechanism is connected with the fan; a trachea is connected with the air outlet passage of the fan, and the air outlet end of the trachea is connected to the The air chamber of the mask body is connected. In the present application, the mask body and the filter body are arranged separately, which reduces the weight of the mask body and effectively solves the problem that the comfort of the human body is affected by the loud fan noise. And because the air chamber of the filter face mask in the present application covers the mouth and nose, the surrounding space of the nostrils can be filled with purified air, and the problem of inhaling polluted air caused by the mismatch between the outlet of the purified air and the nostrils is avoided.

Description

filter breathing mask

technical field

The invention belongs to the field of air purification, and in particular relates to an active filtering breathing mask capable of filtering fine particles.

Background technique

Haze is a weather phenomenon, which refers to a large number of fine dry dust particles such as dust floating in the air evenly, making the air cloudy, blurring the vision and leading to deterioration of visibility. Long-term exposure to smog will have a serious impact on human health. Studies have shown that smog can cause huge damage to the human respiratory system and cardiovascular system, and even cause cancer. Therefore, when going out in smog , more and more people choose to use filter masks for protective measures.

In the prior art, the Chinese patent document CN20357717U discloses a mask for preventing particulate matter, the mask includes a mask body and a mask filter box connected to each other; The breathing piece is connected to the cover body, and the two ends of the cover body are respectively connected with mask belts through buckles; breathing holes are arranged on the breathing piece. When the mask is in use, the air inhaled by the user is first filtered through the filter box and then enters the mask body, thereby effectively filtering out fine particles in the air, and effectively preventing silicosis when used in dusty workplaces. In addition, in order to reduce the resistance of breathing, in the prior art, Chinese patent document CN103868162A also discloses a portable air purifier provided with a fan. The main body of the air purifier is provided with an air inlet and an air outlet. A fan and an air purification unit are arranged inside, and under the action of the fan, air enters from the air inlet, passes through the air purification unit, and is discharged from the air outlet. For portability, the main body of the air purifier is at least partly in a ring shape, so that it is positioned around the user's neck, and when the air purifier is placed on the face, its air outlet is set close to the wearer's nostrils .

The air purifier in the above-mentioned prior art effectively reduces the resistance of human breathing by setting a fan, but since the air outlet of the air purifier has a certain distance from the nostrils of the human body, instead of closely fitting the nostrils, the human body will breathe when breathing. In addition to inhaling purified air, a certain amount of polluted air will also be inhaled; in addition, because the above-mentioned air purifier is provided with a fan, this makes the weight of the mask relatively large, and because the motor rotates when the fan is working, it will produce certain noise. The fan is too close to the human ear, even if the noise is very weak, it will bring discomfort to the human body after long-term use.

Contents of the invention

The present invention solves the problem that there is a distance between the air outlet and the nostrils of the filtering mask in the prior art, which easily leads to the inhalation of polluted air, and the problem that the mask is heavy and the ear noise is large due to the setting of the fan. Furthermore, a filter-type breathing mask which can purify air and can be arranged around the nostrils, is light in weight and has no noise pollution is provided.

The technical solution adopted by the application to solve the above-mentioned technical problems is:

A filtering respirator comprising:

The mask body is provided with an air chamber inside the mask body, the air chamber is suitable for covering the mouth and nose, and an exhaust port is arranged on the wall of the air chamber;

A filter body, a fan and a filter element are arranged inside the filter body, wherein the filter element is arranged on the air intake passage of the fan, and a drive mechanism is connected to the fan;

An air pipe is communicated with the air outlet channel of the fan, and the air outlet end of the air pipe is communicated with the air chamber of the mask body.

The mask body includes an outer shell and an inner shell that are connected, and two air intake cavities are formed between the outer shell and the inner shell. The air chambers are arranged in communication, and an air guiding structure is arranged in each of the air intake chambers.

The air guide structure includes an air intake plate arranged between the air intake chamber and the air storage chamber, and through holes are arranged on the air intake plate.

The air inlet plate is an arc-shaped plate that first extends outward from top to bottom and then shrinks inward.

The air guide structure also includes a plurality of air guide strips, the plurality of air guide strips extend from the bottom of the air intake chamber to the air intake plate, and divide the air intake chamber into a plurality of air guide channels, each Each of the air guide channels is communicated with the air outlet end of the trachea.

An air inlet hole is provided on the bottom surface of the air inlet cavity corresponding to each air guide channel, and the air inlet hole is communicated with the air outlet end of the air pipe.

The connection mode of the outer shell and the inner shell is ultrasonic connection.

The inner surface of the inner shell is arranged close to the face, and an elastic material layer is arranged close to the inner surface of the inner shell.

The exhaust port is arranged at the bottom of the air chamber.

The shell extends to the junctions between the cheeks and the ears on both sides, and a tie hole is respectively arranged at the positions where the shells are located at the junctions between the cheeks and the ears on both sides.

A nose bridge bracket is arranged on the upper part of the air chamber.

The filter element is a high-efficiency particulate air filter.

A PM2.5 detection sensor is arranged on the filter body, and a buzzer is connected with the PM2.5 detection sensor.

A perfume storage chamber for accommodating perfume is also provided inside the filter body, and the perfume storage chamber is preferably provided on the side wall of the air outlet channel of the fan.

Compared with the prior art, the filter type breathing mask described in the application has the following advantages:

(1) The filtering breathing mask described in this application is provided with a mask body and a filter body, and an air chamber is arranged inside the mask body, and the air chamber is suitable for covering the mouth and nose. The wall surface of the air chamber is provided with an exhaust port for discharging exhaled carbon dioxide gas; a fan and a filter element are arranged inside the filter body; a trachea is provided in communication with the outlet channel of the fan, and the outlet end of the trachea It communicates with the air chamber of the mask body. The mask body and filter body in this application are set separately, and the two are connected through the trachea. When the mask is worn on the face, the filter body can be carried on the shoulder, chest or tied to the waist, which effectively solves the problem of the prior art. In the filter mask, the fan and the mask are integrated, which causes the mask to be heavy, and the noise of the fan affects the comfort of the human body. For portability, the length of the trachea between the mask body and the filter body in the present invention can preferably be set to 40-60 cm. And because the filter mask in the present application is in use, the purified air filtered by the filter element enters the air chamber through the trachea, and the air chamber covers the nose and mouth, so that the purified air can fill the surrounding space of the nostrils , avoiding the problem of inhaling polluted air caused by the outlet of purified air not fitting well with the nostrils.

(2) The filtering breathing mask described in this application further defines that the mask body includes an outer shell and an inner shell that are connected, and two air intake cavities are formed between the outer shell and the inner shell, and the two air intakes The cavities are respectively located on both sides of the air-holding cavity, and an air-guiding structure is provided in each of the air-intake chambers, and the air-guiding structure includes a Air intake panels and multiple air guide strips. The air guide strip divides the air intake chamber into multiple guide channels. After the purified air enters the mask from the trachea, it can smoothly pass through the through holes on the air intake plate along the guide channels and enter the air chamber. On the one hand, it allows the gas to enter around the nostrils smoothly, ensuring smooth breathing; on the other hand, it also avoids the problem of affecting the comfort of the user due to the direct blowing of the purified gas around the nostrils.

(3) For the filtering breathing mask described in this application, the inner side of the inner shell is limited to be placed close to the face, and a polyurethane sponge layer is arranged close to the inner side of the inner shell, thereby ensuring that the inner side of the mask is in contact with the face comfort at the time. In addition, a nose bridge bracket is provided in the air chamber and at the middle position of the mask, so that the mask can be stably mounted on the nose bridge.

Description of drawings

In order to make the technical solution described in the present invention easier to understand, the technical solution of the filtering breathing mask described in the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, wherein

As shown in Figure 1 is the structural diagram of the mask body of the filter type breathing mask of the present invention;

As shown in Figure 2 is the structural diagram of the filter body of the present invention;

As shown in Figure 3, it is a structural diagram of the mask body provided with a flow guiding structure according to the present invention;

As shown in Figure 4 is the top view of the mask body provided with polyurethane sponge layer according to the present invention;

As shown in FIG. 5 , it is a structural diagram of the filtering breathing mask of the present invention in use.

Wherein, reference sign is:

1-mask body; 2-air chamber; 3-exhaust port; 4-filter body; 5-fan; 6-filter element; 7-trachea; 8-outer shell; 9-inner shell; 11-air intake plate; 12-through hole; 13-air guide strip; 14-air guide channel; 15-air intake hole; 16-elastic material layer; 17-nose bridge bracket; 18-lacing hole.

detailed description

Example 1

The present embodiment provides a filtering breathing mask, which includes a mask body 1 and a filter body 4; wherein the mask body 1, as shown in Figure 1, consists of an outer shell 8 and an inner shell 9 connected together by thermal fusion, The materials of the outer shell 8 and the inner shell 9 are plastic materials such as polyvinyl chloride; wherein the outer shell 8 is suitable for covering the nose and mouth and extends to the junction of the cheeks and ears on both sides, and the inner shell 9 is located at the junction of the outer shell 8 Inside, the inner surface of the inner shell 9 is suitable for fitting with the face, and an air chamber 2 is formed in the middle of the inner shell 9. When worn, the air chamber 2 covers the nose and mouth. The lower end of the air chamber 2 is provided with an exhaust port 3, which is suitable for discharging exhaled carbon dioxide gas in time; two inlets respectively located on both sides of the air chamber 2 are formed between the inner shell 9 and the outer shell 8. The air cavity 10 is provided with an air intake hole 15 on the bottom surface of each of the air intake cavity 10 , and a nose bridge bracket 17 is provided at the upper part of the air cavity 2 . For the convenience of wearing, a lacing hole 18 is respectively provided at the position where the outer shell 8 is located at the junction of the cheeks and the ears on both sides. When wearing, an elastic elastic band can be tied on the two lacing holes 18, and the elastic band The mask is secured by placing it behind the head.

The filter body 4 in this embodiment is shown in Figure 2, a fan 5 and a filter element 6 are arranged inside the filter body 4, and a motor is connected to the fan 5, and the motor is built into the filter body 4. In the filter body 4, the power supply of the motor is a battery built in the filter body 4, and the fan 5 is driven by the motor to extract and deliver air; the filter element 6 is arranged at the inlet of the fan 5 On the air channel, the filter element 6 is filled with filter material, and the filter material in this embodiment is fiber filter cotton; in order to facilitate replacement and disassembly, the filter element 6 in this embodiment is detachably fixed by screws Inside the filter body 4 , as an optional embodiment, the filter element may also be fixed inside the filter element by snap fit. Two air pipes 7 are arranged in communication with the air outlet channel of the fan 5 , and the air outlet ends of the two air pipes 7 are respectively arranged in communication with the air inlet holes 15 on the bottom surface of the two air inlet chambers 10 . In this embodiment, the length of the trachea 7 located between the mask body 1 and the filter body 4 is 40-60 cm, and a strap is connected to the filter body 4, so that it is suitable for the user to carry the filter body 4 on the back. on the shoulders. For the filtering breathing mask product in this embodiment, the length of the trachea 7 can also be set separately according to the heights of different users.

When the filtering breathing mask in this embodiment is in use, under the action of the fan 5, the purified air filtered by the filter element 6 enters the air intake cavity 10 through the air pipe 7, and then enters the air intake cavity 10 through the air intake cavity 10. Air chamber 2. Since the air chamber 2 in this embodiment is set to cover the mouth and nose, the purified air can fill the surrounding space of the nostrils, avoiding the problem of inhaling polluted air caused by the mismatch between the outlet of the purified air and the nostrils . The filter material in the filter element needs to be replaced after a period of use. The filter element 6 in this embodiment is detachably fixed inside the filter body 4 by screws. After a period of use, the filter element 6 The filter material can be replaced by removing it.

Example 2

The filtering breathing mask in this embodiment comprises a mask body 1 and a filter body 4; wherein said mask body 1, as shown in Figure 3 and Figure 4, includes an outer shell 8 and an inner shell 9 arranged by ultrasonic connection, said outer shell 8 and The material of the inner shell 9 is a plastic material such as polyvinyl chloride; wherein the outer shell 8 is suitable for covering the nose and mouth and extends to the junction of both cheeks and ears. The inner shell 9 is located on the inner side of the outer shell 8, and the inner surface of the inner shell 9 is suitable for fitting with the face. In order to improve the user's comfort when wearing the mask, this embodiment is close to the inner shell 9. An elastic material layer polyurethane sponge 16 is provided on the inner side of the inner surface. As an optional embodiment, the elastic material layer 16 is a polyurethane sponge layer. An air chamber 2 is formed in the middle of the inner shell 9, and an exhaust port 3 for discharging exhaled carbon dioxide gas is arranged at the lower end of the air chamber 2; Two air intake cavities 10 are formed, and the two air intake cavities 10 are respectively located on both sides of the air containing cavity 2, and an air guide structure is arranged in each of the air intake cavities 10, and the air guide The structure includes: an air intake plate 11 arranged between the air intake chamber 10 and the air storage chamber 2, and a plurality of through holes 12 are arranged on the air intake plate 11, and the plurality of through holes 12 are located in the Evenly distributed on the air intake plate 11; four air guide strips 13 are also arranged in each of the air intake chambers 10, and each of the air guide strips 13 extends from the bottom of the air intake chamber 10 to the Said air intake plate 11, four air guide passages 14 are formed between adjacent air guide strips 13 or between the air guide strips 13 and the wall surface of the air intake chamber 10, and each air guide passage 14 corresponds to the inlet An air inlet 15 is arranged on the bottom surface of the lower part of the air chamber 10 . In this embodiment, a nose bridge bracket 17 is provided at the upper end of the air chamber 2 and in the middle of the mask; a tie is provided at the positions where the outer shell 8 is located at the junction of the cheeks and the ears on both sides. Hole 18, elastic elastic band can be tied on two tie holes 18 when wearing, in order to facilitate removal and wearing, belonging elastic band is divided into two sections, connected by buckle between two sections of elastic band.

The filter body 4 in this embodiment is shown in Figure 2, a fan 5 and a filter element 6 are arranged inside the filter body 4, wherein a motor is connected to the fan 5, and the fan 5 is driven by the motor Under the action, the air is sucked and blown by rotation; the power supply of the motor is a battery built in the filter body 4 . The filter element 6 is detachably fixed inside the filter body 4 by screws and arranged on the air intake passage of the fan 5, and a filter material is arranged in the filter element 6, as described in this embodiment The filter material is an activated carbon filter. Eight air pipes 7 are arranged in communication with the air outlet channel of the fan 5 , and the air outlet ends of the eight air pipes 7 are respectively arranged in communication with eight air inlet holes 15 on the bottom surface of the two air inlet chambers 10 . For the convenience of carrying the filter body 4 on the body, the length of the trachea 7 located between the mask body 1 and the filter body 4 in this embodiment is 40-60 cm, and a hook is arranged on the filter body 4. Therefore, it is convenient for the user to hang the filter body 4 on the belt. The structural diagram of the filtering breathing mask described in this embodiment when in use is shown in FIG. 5 .

In addition to the air guide structure described in this embodiment, as an optional implementation, the air guide structure may also only include an air intake plate arranged between the air intake chamber 10 and the air storage chamber 2 11, instead of setting the air guide bar, four air inlet holes 15 are also respectively arranged on the lower bottom surface of each of the air inlet chambers 10 . As an alternative form of the air guide strip, the air outlet ends of the eight air pipes 7 can be set to extend to the inside of the air intake cavity 10 through the eight air intake holes 15 and be arranged close to the air intake plate 11, The purified gas passes directly to the vicinity of the air intake plate 11 through the air pipe 7 , and the air pipe 7 inside the air intake chamber 10 plays a role of diversion.

When the filtering breathing mask in this embodiment is in use, under the action of the fan 5, the purified air filtered by the filter element 6 enters the air intake chamber 10 through the air pipe 7, and then the air diversion function of the diversion conduction is performed. The air enters the air chamber 2 through the through hole 12 on the air intake plate 11 . Since the air chamber 2 in this embodiment is set to cover the mouth and nose, the purified air can fill the surrounding space of the nostrils, avoiding the problem of inhaling polluted air caused by the mismatch between the outlet of the purified air and the nostrils ; This embodiment also defines that the outer shell 8 and the inner shell 9 are connected by ultrasonic means, thereby effectively improving the airtightness between the outer shell 8 and the inner shell 9, and further preventing polluted air from entering the air container from the gap on the mask body cavity. Moreover, the diversion channel provided in this embodiment, on the one hand, enables the gas to enter around the nostrils smoothly, ensuring smooth breathing; on the other hand, it also avoids the problem of affecting the comfort of the user due to the direct blowing of the purified gas around the nostrils . In addition, in this embodiment, a polyurethane sponge layer is provided on the inner surface of the inner shell 9. The polyurethane sponge is a soft material with high elasticity, thereby effectively improving the comfort of the user when wearing the mask, and making the The mask can be more adapted to the face shapes of different users. As an optional embodiment, in addition to the polyurethane sponge, other suitable elastic materials in the prior art can also be selected.

Embodiment 3 The filtering breathing mask in this embodiment comprises a mask body 1 and a filter body 4; wherein said mask body 1, as shown in Figure 3, includes an outer shell 8 and an inner shell 9 arranged by ultrasonic connection, wherein said outer shell 8 Fits well over the muzzle and extends to the junction of the cheeks and ears on both sides. The inner shell 9 is located on the inner side of the outer shell 8, and the inner surface of the inner shell 9 is suitable for fitting with the face. Similarly, in order to improve the user's comfort when wearing the mask, this embodiment is close to the inner shell. The inner surface of 9 is also provided with polyurethane sponge layer. An air chamber 2 is formed in the middle of the inner shell 9, and two air intake chambers 10 are also formed between the outer shell 8 and the inner shell 9, and the two air intake chambers 10 are respectively located in the air chamber. On both sides of the chamber 2, an air guide structure is provided in each of the air intake chambers 10, and the air guide structure includes: an air inlet arranged between the air intake chamber 10 and the air containing chamber 2 plate 11, a plurality of through holes 12 are arranged on the air intake plate 11, and the plurality of through holes 12 are evenly distributed on the air intake plate 11; each of the air intake chambers 10 is also provided with 4 air guide strips 13, each of the air guide strips 13 extends from the bottom of the air intake cavity 10 to the air intake plate 11, between adjacent air guide strips 13 or between the air guide strips 13 and the air intake Four air guide channels 14 are formed between the walls of the cavity 10, and an air intake hole 15 is provided on the bottom surface of the air intake cavity 10 corresponding to each of the air guide channels 14; A nose bridge bracket 17 is provided at the upper end of the mask and at the middle of the mask; a tie hole 18 is respectively provided at the junction of the cheeks and the ears on the outer shell 8 .

The inside of the filter body in this embodiment is provided with a fan 5 and a filter element 6, wherein a motor is connected to the fan 5, and the fan 5 is driven by the motor to perform rotation suction and air delivery; The power supply is a battery built in the filter body 4, and as a preferred implementation, the battery in this embodiment is a rechargeable battery. The filter element 6 is arranged on the air intake channel of the fan 5. In order to improve the purification effect, the filter element 6 in this embodiment is preferably a high-efficiency particulate air filter, that is, a HEPA filter (HighefficiencyparticulateairFilter); The air outlet channel of the fan 5 is connected with eight air pipes 7 , and the air outlet ends of the eight air pipes 7 are respectively arranged in communication with eight air inlet holes 15 on the bottom surfaces of the two air inlet chambers 10 . In order to facilitate the filter body 4 to be carried on the body, the length of the trachea 7 located between the mask body 1 and the filter body 4 in this embodiment is set to 30-40cm, and the filter body 4 is provided with The neck strap is convenient for the user to carry the filter body 4 on the chest.

As a preferred embodiment, the filter body 4 in this embodiment is also provided with a PM2.5 detection sensor, and the PM2.5 detection sensor is suitable for detecting the PM2.5 value in the air, and the PM2. 5 The detection sensor is connected with a buzzer, and when the detected PM2.5 value is greater than the threshold, the buzzer will sound a buzzer to remind the user to turn on the motor. In addition, a perfume storage cavity for containing perfume is also provided inside the filter body 4. The perfume storage cavity is preferably arranged on the side wall of the air outlet passage of the fan 5. Place the solid perfume of different fragrance types in the cavity, can release fragrance all the time along with the blowing of fan 5.

In the filtering breathing mask described in the above embodiments, the defined air chamber is suitable for covering the mouth and nose, which means that when the mask body is worn on the face, the air chamber can cover the mouth and nose. The face and houses the nasal and oral cavity, communicating with the nostrils and mouth.

The face shields in the above-mentioned embodiments can be made into models of various sizes to adapt to the faces of different groups of adults and children. In addition, it should be noted that the "upper" and "lower" defined in the above-mentioned embodiments are explained by the relative position when the mask is worn on the face, and the "intake plate" defined in Embodiments 2 and 3 is defined from up to The arc-shaped plate that first extends outwards and then shrinks inwards", in which "inner" and "outer" are also explained by the relative position of the mask when it is worn on the face, that is, "outward" refers to the position where the middle nostril is located. The position points toward the cheek, while "inward" refers to the center pointing from the cheek.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (14)

1. a filtering type breathing mask, it is characterised in that including:

Mask body (1), is provided with appearance air cavity (2) in the inner side of described mask body (1), and described appearance air cavity (2) is suitable for covering mouth and nose and arranges, and is provided with air vent (3) on the wall of described appearance air cavity (2);

Filtering body (4), is internally provided with fan (5) and filter element (6) at described filtering body (4), and wherein said filter element (6) is arranged on the inlet channel of described fan (5), is connected with driving mechanism with described fan (5);

Being provided with and communicated with trachea (7) with the outlet passageway of described fan (5), the outlet side of described trachea (7) connects setting with the appearance air cavity (2) of described mask body (1).

2. filtering type breathing mask according to claim 1, it is characterized in that, described mask body (1) includes connecting the shell (8) arranged and inner shell (9), two inlet chambers (10) are formed between described shell (8) and inner shell (9), said two inlet chamber (10) lays respectively at the both sides of described appearance air cavity (2) and connects setting with described appearance air cavity (2), is provided with gas-guiding structure in each described inlet chamber (10).

3. filtering type breathing mask according to claim 2, it is characterised in that described gas-guiding structure includes the inlet plate (11) being arranged between described inlet chamber (10) and described appearance air cavity (2), is provided with through hole (12) on described inlet plate.

4. filtering type breathing mask according to claim 3, it is characterised in that described inlet plate (11) is for first to stretch out again to the arc of contract from top to bottom.

5. the filtering type breathing mask according to claim 3 or 4, it is characterized in that, described gas-guiding structure also includes multiple gas guide bar (13), the plurality of gas guide bar (13) is extended to described inlet plate by described inlet chamber (10) bottom, described inlet chamber (10) is separated into multiple air guide channel (14), and each described air guide channel (14) all connects setting with the outlet side of described trachea (7).

6. filtering type breathing mask according to claim 5, it is characterized in that, being provided with air inlet (15) on the bottom surface of the inlet chamber (10) of each described air guide channel (14) correspondence, described air inlet (15) connects setting with the outlet side of described trachea (7).

7. the filtering type breathing mask according to Claims 2 or 3 or 4 or 6, it is characterised in that the connected mode of described shell (8) and inner shell (9) is ultrasonic connection.

8. the filtering type breathing mask according to claim 1 or 2 or 3 or 4 or 6, it is characterised in that the medial surface laminating face of described inner shell (9) is arranged, and the medial surface being close to described inner shell (9) is provided with elastomeric layer (16).

9. the filtering type breathing mask according to claim 1 or 2 or 3 or 4 or 6, it is characterised in that described air vent (3) is arranged on the bottom of described appearance air cavity (2).

10. the filtering type breathing mask according to claim 1 or 2 or 3 or 4 or 6, it is characterized in that, described shell (8) extends to the intersection of both sides buccal and ear, and the position being positioned at both sides buccal and ear's intersection at described shell (8) is respectively arranged with a frenulum hole (18).

11. according to the filtering type breathing mask described in claim 1 or 2 or 3 or 4 or 6, it is characterised in that the top of described appearance air cavity (2) is provided with bridge of the nose bracket (17).

12. according to the filtering type breathing mask described in claim 1 or 2 or 3 or 4 or 6, it is characterised in that described filter element (6) is High Efficiency Particulate Air defecator.

13. according to the filtering type breathing mask described in claim 1 or 2 or 3 or 4 or 6, it is characterised in that be provided with PM2.5 on described filtering body (4) and detect sensor, detect sensor with described PM2.5 and be connected with buzzer.

14. according to the filtering type breathing mask described in claim 1 or 2 or 3 or 4 or 6, it is characterized in that, be additionally provided with the perfume storage chamber for holding perfume in the inside of described filtering body (4), described perfume storage chamber is preferably provided on the sidewall of the outlet passageway of described fan (5).