CN214854497U

CN214854497U - High-cleanness low-resistance gas filter for human body respiration

Info

Publication number: CN214854497U
Application number: CN202022277254.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: China Chuangfukuo Beijing Science And Technology Development Research Institute Co ltd
Current assignee: China Chuangfukuo Beijing Science And Technology Development Research Institute Co ltd
Priority date: 2020-10-08
Filing date: 2020-10-08
Publication date: 2021-11-26
Anticipated expiration: 2030-10-08

Abstract

The utility model discloses a high-cleanness low-resistance filter for human body respiration, which belongs to the field of respiratory gas filtration, and is characterized in that air sucked by a human body firstly enters the interior of a filter module through an inlet of a high-cleanness low-resistance filter module for sucking air, is filtered into high-cleanness gas, and then is sent to a respiratory mask for human body suction through a high-cleanness gas output connecting pipe; the gas exhaled by the human body is filtered by the exhaled gas cleaning and filtering module, and the clean gas is discharged into a public space. The utility model discloses a pocket type filtration technique, the technology that ally oneself with side by side, space separation technique make high-efficient low resistance filter miniaturized, satisfy people's needs that hand-carry used, mainly used individual antivirus, prevent flu, antifog haze, prevent dust and the fire control of house, remove aspects such as formaldehyde, also can be used to the high clean processing etc. of hospital medical personnel protection, infectious disease patient exhalation gas.

Description

High-cleanness low-resistance gas filter for human body respiration

Technical Field

The utility model relates to a respiratory gas filters technical field, is all through the high clean filtration of special filter module with the gas that the human body breathed in and expired, solves personal respiratory protection and the infectious disease prevention and cure problem of society.

Background

After the human beings enter twenty-first century, the SARS virus, American influenza, Ebola virus and future unknown virus plague threaten the life health of people, influence the work, study and social economy of people, and urgently need to solve the problem of respiratory gas filtration and protection.

The common technology known at present is that the mask is made into SMS and SMMMS by melt-blown non-woven material, such as N95 type mask, which can filter particles larger than or equal to 0.3 micron, bacteria and partial virus, the filtering efficiency of the material can be larger than 95%, but only virus monomer is left to be attached on the mask after aerosol outside the mask is temporarily filtered and moisture of the aerosol is lost, if the quantity of the virus enriched on the outer layer of the mask is large, the small-volume virus can not penetrate through a barrier net larger than the small-volume virus to enter the lung along with continuous and repeated breathing of people. Obviously, the mask is not caused by incorrect wearing, and the prior mask technology has three defects. The first drawback is the poor sealing protection of the respiratory system and the high air leakage rate, up to 8% even when worn correctly. The second defect is that the filtration efficiency is not high, the high clean filtration cannot be achieved, the resistance is large, even if the materials of a plurality of masks only have the filtration efficiency of less than 90%, the breathing is difficult to wear soon, people do not want to wear for a long time, the children masks have great resistance to cause irreversible damage to the lungs of children, and the filtration rate of the materials is not high according to the filtration detection of the children masks of several manufacturers on the market, and the necessary protection is not achieved. The third defect is that the mask is opaque and not small, covers most of the face of a person, is not beautiful and hot, is not willing to be worn for a long time, and many people in the United states even refuse to wear the mask. Certainly, in order to prevent epidemic and reduce infection to the maximum extent under the prior art, the wearing of the mask is far better than the wearing of the mask, and the difference in epidemic prevention effect in China and America fully proves the point. Besides the theoretical filtering effect of the material is not high clean, and due to the serious air leakage rate, the actual comprehensive filtering effect of the existing mask is not good. In addition, every 4 hours of wearing medical masks and medical surgical masks in the prior art, because of large static electricity loss, the filtering efficiency is seriously reduced and the masks need to be discarded, but people rarely wear the masks for 4 hours and then replace the masks with new ones, the filtering efficiency of the masks worn in most of the time is seriously insufficient, and the risk of virus infection is very high.

The prior known filter has large volume, is mainly used for indoor filtration and is not suitable for being carried by human breath. In addition, the filtering efficiency of the known filter is limited, and only clean filtering can be performed on air, but high-clean filtering cannot be performed on air. Particularly, in the filter in the prior known field, high sealing among the filter material, the container and the pipeline is difficult to ensure, and the virus leakage risk is high.

SUMMERY OF THE UTILITY MODEL

For overcoming the limitation of current protective facial mask and filter, the utility model provides a high clean low resistance filter of human breathing with gaseous body, the utility model discloses a multiple filtration technique filters germ, virus, realizes the high clean filtration of breathing gas.

The utility model discloses the technical scheme who adopts is solved in the creation: the filtering function is separated from the mask body and is externally arranged to be made into a micro filter, and inhaled gas and exhaled gas are efficiently filtered by professional filtering modules respectively, so that a more efficient and lower-resistance filtering method is researched and configured; and the modules can be selected and installed as required by adopting functional modularization. Aiming at the characteristic that the sucked air is mainly dry and complex, a special high-cleanness filtering module for the sucked air is inserted; aiming at the humidity of the exhaled air and mainly preventing the exhaled air from possibly carrying viruses and germs to infect surrounding personnel, a special exhaled air cleaning and filtering module is inserted. In order to realize high-cleanness and low-resistance filtration in a limited space, a fence box is arranged in a high-cleanness low-resistance filtration clean cabin for the gas for respiration, so that a sufficient gas channel is ensured after the filter module is inserted, and the gas flow resistance is reduced; the gas can be uniformly filtered through all the filtering materials, and the filtering resistance is further reduced. Aiming at the sealing problem, the fence box is sealed and fixed in the clean cabin, a sealing ring is arranged on the filtering module, and the filtering module is extruded with the cabin wall for sealing after being inserted into the clean cabin.

The utility model relates to a high-cleanness low-resistance gas filter for human body respiration, which mainly comprises a filter main box, a filter upper cover plate, a gas passage fence box and a gas filtering module; the filter main box is divided into an inhaled gas filtering clean cabin and an exhaled gas filtering clean cabin; the gas filtering module is divided into a high-cleanness air-suction low-resistance filtering module and an exhaled gas cleaning filtering module; the gas channel fence box is divided into an inhalation gas channel fence box and an exhalation gas channel fence box.

The fence box of the air suction passage is arranged in the air suction filtering clean cabin of the utility model; an expired air passage fence box is arranged in the expired air filtering clean cabin.

The high-cleanness low-resistance filter module for sucking air of the utility model is hermetically inserted into a fence box of a sucking air channel in a sucking air filtering clean cabin; the exhaled air clean filtering module is hermetically inserted into an exhaled air channel fence box in the exhaled air filtering clean cabin.

The utility model discloses, human inspiratory air is inside at first getting into the filter module through the air intlet that inhales the high clean low resistance filter module of air, and high clean gas is filtered into through filtering material, then gets into and inhales the gas filtration clean cabin, goes upward along the space that inhales gas passage fence box fence separates into and gets into clean gas output and take over, and the gas conduit who links to each other is sent to respiratory protection casing and supplies the human body to inhale through taking over with clean gas output.

The utility model discloses, the gas of human body exhalation is through sealed respiratory protection casing, pipe, filters the takeover through the exhalation gas input and is sent to exhalation gas filtration clean cabin, and the space evenly distributed that separates into along exhalation gas passageway fence box passes through the filtration material of the clean filter module of exhalation gas, and virus, the bacterium of the exhalation that will probably exist filter, inside clean exhalation gas got into the clean filter module of exhalation gas, the public space was discharged through the exhalation gas outlet of the clean filter module of exhalation gas.

The gas channel fence box of the utility model is provided with 1-N insertion holes, and corresponding filtering modules can be inserted, so that the resistance can be greatly reduced under the limited size; the two sides of the main body of the gas channel fence box are provided with a certain distance from the edges, and a loose gas channel is formed outside the inserted filter module so as to uniformly distribute and filter gas in a limited space and reduce the fluid resistance; one side of the gas passage fence box is provided with a joint, the size of the outside of the gas passage fence box is consistent with that of a corresponding filtering cabin of the filter main box, the gas passage fence box is well contacted and sealed with the filter main box after being inserted, and a thin gasket is arranged or sealant is coated to realize complete sealing and fixing; the size of an inner insertion hole is consistent with that of a sealing joint of the filter module, the insertion hole is in good contact with the filter module, and the joint of the filter module is matched with a gasket and can be inserted to realize high sealing.

The filtering material of the gas filtering module of the utility model is made into a bag shape, which has more than double filtering area under a certain space, thereby greatly reducing resistance; if harmful gas gets into from air inlet department, a large amount of harmful substance filters through filtering material and collects in module filtering material bag, takes out the clearance at every arrival certain time, avoids filterable harmful substance polluted environment to and avoid taking down particulate matters such as filterable virus, bacterium, dust when changing at every turn and shake off in the container and need the clearance.

The gas filtering module of the utility model is divided into a professional high-cleanness low-resistance filtering module for inhaled air and a professional clean filtering module for exhaled air, the matching of the filtering materials of the inhalation filtering module and the sequence from inside to outside are specially made according to the characteristics that the inhaled air is mainly relatively complex dry gas, and the requirements of high cleanness, low resistance and long-time effective filtration of the inhaled air are fully met; the selection and the sequence of the components of the filtering material of the exhalation filtering module are specially made according to the characteristic that the exhaled air is mainly humid air, thereby fully meeting the requirements of clean, low-resistance and long-time-effect filtering of the exhaled air.

Inhale the clean cabin air inlet of gas filtration and filter clean cabin gas outlet with the exhalation gas and not in same direction, take the opposite direction design, avoid the gas of exhalation to continue to inhale.

The utility model discloses in the limited space of the high clean low resistance filter of respiratory gas, adopt bag-type filtration technique, the technology that ally oneself with side by side, space separation technique more, enlarge high-efficient filtering material's filter area as far as possible, reduced filtration resistance by a wide margin, make high-efficient low resistance filter can miniaturize, satisfy the needs that people hand-carried the use.

Respiratory protection casing is connected to high clean low resistance filter of respiratory gas can be used to the anti-virus epidemic prevention field, also can apply to the dustproof and at home fire control of industry, prevent flu, antifog haze, remove fields such as toxic gas.

The utility model discloses in the suction gas got into filter module, gas filter module was corresponding filtering material from inside to outside, and the air of pollution is at first filtered through just imitating, absorbs most moisture and aerosol, and most fine particle and remaining aerosol filter through nanometer aperture material, and last remaining fine particle is filtered totally through absorption formula filtering material again.

The utility model discloses the technology is the most central adopts the pocket type to filter the module, will breathe and filter to make into the bag form with filtering material, increase filter area more than double on the one hand, on the other hand is suitable for the sealed of guarantee limit seam, joint. In addition, a fence box is arranged in the filter to separate the inside and the outside of the air passage, so that the resistance and uniformity of air passing are guaranteed.

The utility model discloses the scientific principle who bases: 1. according to newton's law of viscosity, shear stress is directly proportional with the velocity gradient of normal direction, and is irrelevant with the pressure of normal direction, consequently the utility model discloses external filter equipment, the filter area of air can be increased, makes air velocity reduce, and the resistance descends thereupon when breathing. 2. The virus, bacteria and air separation technology of the utility model adopts the multiple filtration separation technology to carry out high-cleanness filtration, and the nano-aperture material passes through clean gas with nano-aperture to block and filter the particles with larger aperture such as virus, bacteria and dust; the melt-blown cloth has high-voltage static electricity, has adsorption effect on fine particles, and is subjected to adsorption filtration; the active carbon has adsorption effect on harmful gas, bacteria, virus, etc. and is used for adsorption and filtration.

The utility model has the advantages that: 1. the utility model discloses can carry out the low resistance of high clean to tuberculosis germ, influenza virus, industrial and mining dust, poison gas and other viruses, germ etc. and filter, and can not let virus, germ pollute protective articles to fully ensure that the user can not be infected. 2. The utility model discloses need not often renew the gauze mask, avoid the wasting of resources and antiepidemic goods and materials in short supply. 3. People include that the gas that dominant patient, recessive patient expired all clean filtration handle discharge into the air again, be the respiratory system protector that can kill dominant patient, recessive patient's exhalation virus, personnel's safety around the guarantee is significant to the top level virus that prevention and control latency is long, the accessible aerosol propagates. 4. The utility model discloses can be used to the anti-virus epidemic prevention field, also can apply to the dustproof and at home fire control of industry, prevent flu, antifog haze, remove fields such as toxic gas. 5. The utility model discloses the technique still adopts the sealed technique of pocket type, and is far less than current gauze mask air leakage rate, also is more efficient than the sealed of other flat filtering material and container joint, ensures the person's of wearing epidemic prevention better.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the respiratory gas high-cleanness low-resistance filter of the present invention.

Fig. 2 is a front sectional view of the respiratory gas high-cleanness low-resistance filter of the present invention.

Fig. 3 is a cross sectional view of the respiratory gas high-cleanness low-resistance filter.

Fig. 4 is a side view of the air inlet of the suction gas filtering clean room of the present invention.

Fig. 5 is an inside view of the side cover plate of the air inlet of the air filtering clean room of the utility model.

Figure 6 is a side view of the gas outlet of the exhaled air filtering clean room of the present invention.

Figure 7 is the inside view of the side cover plate of the air outlet of the exhaled air filtering clean cabin of the utility model.

FIG. 8 is a portable belt diagram of the respiratory gas high-cleanness low-resistance filter.

In the figure: 300. respiratory gas high clean low resistance filter, 301 filter main box, 302 inhalation gas filtration clean room, 304 exhalation gas filtration clean room, 306 filter upper cover panel, 307 air passage barrier box, 321 air inlet, 323 inhalation gas passage barrier box, 324 inhalation gas filtration clean room cover panel, 325 clean gas outlet connection, 331 exhalation gas inlet filtration connection, 334 exhalation gas passage barrier box, 335 exhalation gas filtration clean room cover panel, 336 exhalation gas outlet, 390 filter carrier bag, 391 filter carrier bag, 392 filter carrier bag extensible waist strap, 393 filter carrier bag air inlet, 394 filter carrier bag air outlet, 395 filter carrier bag outlet and inlet gas dual orifice, 500 gas filtration module, 503 inhalation air high clean low resistance filtration module, 505. filter material, 508. exhaled gas cleaning filter module.

Detailed Description

As shown in fig. 1 to 8, the present invention relates to a high-cleanness low-resistance filter for human body respiration, which mainly comprises an inhaled air filtering clean cabin 302, an exhaled air filtering clean cabin 304, a filter upper cover 306, an air inlet 321, an inhaled air passage fence box 323, an inhaled air filtering clean cabin cover 324, a clean air output connection pipe 325, an exhaled air input filtering connection pipe 331, an exhaled air passage fence box 334, an exhaled air filtering clean cabin cover 335, an exhaled air outlet 336, a filter carrying bag 390, an inhaled air high-cleanness low-resistance filtering module 503, an exhaled air cleaning filtering module 508, etc.

The method specifically comprises the following steps: firstly, calculating the area of a filter material required for filtering high-cleanness breathing gas, then determining the volume of a filter module, determining the volume of a matched gas channel fence box according to the filter module, and designing the gas channel fence box. The internal size of the clean room is determined according to the gas passage fence box and the necessary gas passage, and the sucked gas filtering module is determined to adopt 1 connection or 2 connection or 3 connection, wherein the 2 connection is usually the best choice. The overall interior dimensions of the suction gas filtration clean room 302 are determined. Whether the 1-connection or the 2-connection is adopted is determined according to the required filtering cleanliness of the exhaled air, and the 1-connection is the best choice in general. The overall interior dimensions of the exhaled breath filtration clean room 304 are determined. A partition is provided between the inhalation air filtration clean room 302 and the exhalation air filtration clean room 304 to determine the thickness of the filtration outer wall plate and preliminarily determine the middle-lower portion of the filter main tank 301. The inner size of the clean room joint is correspondingly adapted and sealable with the outer size of the fence box joint; note that the inside dimensions of the rail box connector are compatible and sealable with the outside dimensions of the filter module connector. Designing a filter upper cover plate 306 according to the filter main box 301, determining the proper arrangement positions of the clean gas output connecting pipe 325 and the exhaled gas input filtering connecting pipe 331, and designing partition chambers at the upper part of the filter main box, which are respectively connected with the clean gas output connecting pipe 325 and the exhaled gas input filtering connecting pipe 331, according to the trend conditions of the inhaled gas channel and the exhaled gas channel. The sealing ring on the upper cover plate of the filter is designed according to the baffle chamber. The inhalation gas filtering clean cabin cover plate 324 and the exhalation gas filtering clean cabin cover plate 335 at two sides are arranged according to the inlet and outlet conditions of the filter module. The filter main case 301, the inhalation gas passage barrier case 323, the exhalation gas passage barrier case 334, and the filter upper lid plate 306, the inhalation gas filtration clean compartment lid plate 324, and the exhalation gas filtration clean compartment lid plate 335 are produced from hard materials. After production, the sealing ring and the edge of the cover plate of the upper filter cover plate 306 are coated with sealing and fixing glue, and the upper filter cover plate 306 is tightly covered on the main filter box 301. The joint portions of the inhalation gas passage barrier box 323 and the exhalation gas passage barrier box 334 are coated with a sealing retention adhesive and are respectively put into the inhalation gas filtration clean room 302 and the exhalation gas filtration clean room 304, and the production of the filter is completed.

When the user uses the breathing air filtering clean cabin 302, a corresponding high-cleanness low-resistance filtering module 503 for the breathing air is selected to be arranged in the breathing air filtering clean cabin 302 of the high-cleanness low-resistance filter 300 according to the situation of the breathing air required to be filtered by the environment; the corresponding exhaled air cleaning and filtering module 508 is selected according to the exhaled air required to be filtered by the user condition and is installed in the exhaled air filtering cleaning cabin cover plate 335 of the respiratory air high-cleaning low-resistance filter 300.

The figure is the most main embodiment I, namely the inhalation is in two connection, the requirement of high-cleanness and low-resistance filtration of inhaled gas is met, the exhalation filtration is in one connection, the requirement of high-cleanness treatment on the exhaled gas under the common condition is met, so that the resistance of the selected exhalation filter material is relatively low, and the low-resistance filtration requirement can be realized by one connection. The balance is the requirements of small size, good filtering effect and low filtering resistance of the common respiratory gas filter. Of course, this drawing does not represent a limitation on the patent claims. The configuration of 1-N connection can be adopted for the filtration of the inhaled gas and the filtration of the exhaled gas according to the requirement under the patent.

It should be pointed out that the user often needs high-cleanness filtration for the inhaled gas, needs to adopt necessary high-cleanness filter materials, and adopts double-connection or even multi-connection filter modules to meet the requirement under the limited size of the filter, so that the inhaled gas filter modules are 2-N-connection, the filter area is increased by many times, and the filter resistance is reduced; the exhaled air needs to be cleaned to ensure the safety of the public, and the exhaled air is cleaned by referring to the current filtering standards of U.S. N95 and KN95 masks, and when the filtering standards are exceeded, the exhaled air is cleaned, the cleaning rate of the exhaled air is far higher than the filtering standards of U.S. N95 and KN95 masks, the filtering materials and the effective filtering area are used, and the resistance of a user in the process of exhaling is reduced as much as possible, so that the number of the exhaled air filtering modules is 1-N. However, for the patients with infectious diseases, the exhalation filter module adopts a high-cleanness filter material, more and thicker exhalation gas materials need to be filtered in a high-cleanness mode, and the exhalation gas module adopts a 2-N connection mode to reduce resistance.

In the embodiment of the patent, the filters with the common inhalation 2-connection type and the exhalation 1-connection type can be reversely connected with the guide pipe and the selective insertion filtering module in use, so that the multifunctional integrated machine has multiple functions. As mentioned previously, for patients with infectious diseases, it is sufficient to clean the filter module for the gas they inhale, so the filter material is thin, the resistance per square centimeter is low, and it is sufficient to connect the filter modules together; and the high-cleanness treatment is carried out on the gas exhaled by the patient with the infectious disease, the filtering material is thicker, and the resistance per square centimeter is large, so that two joints are needed. Therefore, the guide pipe can be reversely connected, the exhaled gas guide pipe is connected with the clean gas output connecting pipe marked on the filter, the inhaled gas guide pipe is connected with the exhaled gas input filtering connecting pipe marked on the filter, the inhaled gas filtering clean cabin is changed into an exhaled gas filtering clean cabin, and the filtering module with high-cleanness filtering exhaled gas is selectively inserted; the exhaled air filtering clean cabin is changed into the inhaled air filtering clean cabin, and the low-resistance clean filtering module is inserted, so that the exhaled air with infection can be filtered highly cleanly and then is safely discharged into the air, and the infection to other people in a sick area, a public place, an office and a home is avoided. Of course, in the embodiment, special filters can be produced for patients with infectious diseases, namely the exhalation 2-joint and the inhalation 1-joint.

When the user does not need to change the position for use indoors or during sleep, the high-cleanness low-resistance respiratory gas filter 300 can be placed in front of the bed or on the table.

When the user is going on a trip or needs to change the position, the breathing gas high-cleanness low-resistance filter 300 can be put into a bag or a pocket, or a specially matched gas high-cleanness low-resistance filter carrying bag 390 can be carried on the body, can be tied behind the waist, on the waist side, in front of the abdomen or on the back.

The utility model discloses the technique can be used to people's aspects such as fire control, flu prevention and control, except that formaldehyde at home usually, if the society erupts great epidemic situation suddenly, can play effectual gas defense epidemic prevention function.

Claims

1. The utility model provides a high clean low resistance filter of gas for human breathing which characterized by: mainly comprises a filter main box (301), a filter upper cover plate (306), a gas passage fence box (307) and a gas filtering module (500); the filter main box (301) comprises an inhalation gas filtering clean cabin (302) and an exhalation gas filtering clean cabin (304); the gas filtering module (500) comprises an inhaled air high-cleanness low-resistance filtering module (503) and an exhaled air clean filtering module (508); the gas channel barrier box (307) comprises an inhalation gas channel barrier box (323) and an exhalation gas channel barrier box (334);

a suction gas channel fence box (323) is arranged in the suction gas filtering clean cabin (302); an expired gas channel fence box (334) is arranged in the expired gas filtering clean cabin (304);

the suction air high-cleanness low-resistance filtering module (503) is hermetically inserted into a suction air channel fence box (323) in the suction air filtering clean cabin (302); the exhaled gas clean filter module (508) seals an exhaled gas channel fence box (334) inserted into the exhaled gas filter clean room (304).

2. The high-cleanness low-resistance gas filter for human respiration, according to claim 1, wherein: the high-cleanness low-resistance suction air filtering module (503) is provided with an air inlet (321), and an air ascending gap channel is arranged between the wall plate of the suction air filtering clean cabin (302) and the suction air channel fence box (323);

a gas descending gap channel is arranged between the wall plate of the exhaled gas filtering clean cabin (304) and the exhaled gas channel fence box (334), and the exhaled gas clean filtering module (508) is provided with an exhaled gas outlet (336).

3. The high-cleanness low-resistance gas filter for human respiration, according to claim 1, wherein: the gas channel fence box (307) is provided with 1-N connection insertion ports, and corresponding filtering modules can be inserted; the two sides of the main body part of the gas channel fence box (307) are provided with a certain distance from the edges, and a loose gas flow channel is formed outside the inserted filtering module so as to uniformly distribute and filter gas in a limited space and reduce the fluid resistance; one side of the gas passage fence box (307) is provided with a joint, the size of the outside of the gas passage fence box is consistent with that of a corresponding filtering cabin of the filter main box (301), the gas passage fence box is in contact sealing with the filter main box (301) after being inserted, and a thin gasket is arranged or sealant is coated for sealing and fixing.

4. The high-cleanness low-resistance gas filter for human respiration, according to claim 1, wherein: the filtering material of the gas filtering module (500) is made into a bag shape, and the filtering area is doubled or more under the condition of occupying a certain space; harmful gas enters from the air inlet (321), and harmful substances are filtered by the filter material and collected in the module filter material bag.

5. The high-cleanness low-resistance gas filter for human respiration, according to claim 1, wherein: the gas filtering module (500) is divided into a professional high-cleanness low-resistance filtering module (503) for inhaled air and a clean filtering module (508) for exhaled air, and the selection and the sequence from inside to outside of the filtering material (505) of the inhaled filtering module are specially made according to the characteristic that the inhaled air is mainly relatively complex dry gas; the selection and the sequence of the components of the filtering material (505) of the exhalation filtering module are specially made according to the characteristic that the exhaled air is mainly moist air.

6. The high-cleanness low-resistance gas filter for human respiration, according to claim 1, wherein: the air inlet of the inhalation air filtering clean cabin (302) and the air outlet of the exhalation air filtering clean cabin (304) are not in the same direction, and the design of the opposite direction is adopted.

7. The high-cleanness low-resistance gas filter for human respiration, according to claim 1, wherein: in the limited space of the respiratory gas high-cleanness low-resistance filter (300), a bag type filtering technology, a multi-connection parallel technology and a space separation technology are adopted.