CN112315059A - Epidemic prevention and gas defense mask and use method thereof - Google Patents

Epidemic prevention and gas defense mask and use method thereof Download PDF

Info

Publication number
CN112315059A
CN112315059A CN202011203801.XA CN202011203801A CN112315059A CN 112315059 A CN112315059 A CN 112315059A CN 202011203801 A CN202011203801 A CN 202011203801A CN 112315059 A CN112315059 A CN 112315059A
Authority
CN
China
Prior art keywords
mask
chip
layer
epidemic prevention
middle layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011203801.XA
Other languages
Chinese (zh)
Inventor
王学文
王懿
孟钰麒
谭梦洵
王明玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fmr Environ & Tech Co ltd
Central South University
Original Assignee
Ningbo Fmr Environ & Tech Co ltd
Central South University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Fmr Environ & Tech Co ltd, Central South University filed Critical Ningbo Fmr Environ & Tech Co ltd
Priority to CN202011203801.XA priority Critical patent/CN112315059A/en
Publication of CN112315059A publication Critical patent/CN112315059A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/12—Shields or protectors
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/30—Antimicrobial, e.g. antibacterial
    • A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00—Functions or special features of garments
    • A41D2400/70—Removability

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

An epidemic prevention and virus prevention mask comprises a mask body, an epidemic prevention chip, a virus prevention chip and a mask belt, wherein the mask body is provided with an inner layer, a middle layer and an outer layer, the inner layer is woven or non-woven fabric, the middle layer is superfine polypropylene fiber melt-blown material, the outer layer is woven or non-woven fabric, the layers are not bonded, the epidemic prevention chip and the virus prevention chip are respectively clamped between the inner layer and the middle layer and the outer layer or between the outer layer and the middle layer and the inner layer, and the specific using method is as follows: before the mask is used, the epidemic prevention chip and the virus prevention chip are respectively clamped between the inner layer and the middle layer of the mask body and between the middle layer and the outer layer or between the outer layer and the middle layer and between the middle layer and the inner layer, and the mask is worn well and can be used in areas with epidemic respiratory tract infection.

Description

Epidemic prevention and gas defense mask and use method thereof
Technical Field
The invention belongs to the field of health and epidemic prevention, and particularly relates to an epidemic prevention and gas defense mask and a using method thereof.
Background
The mask is a sanitary article, and is a device which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell, spray, virus, bacteria, dust and the like from entering the mouth and nose. The mask is divided into an air filtering type mask and an air supply type mask: the air supply type mask is a clean air source which is isolated from harmful substances and is conveyed to the face of a person for breathing through a pipe and a face mask under the action of power such as an air compressor, a compressed air cylinder and the like, and the filtering type mask is used for filtering harmful gases, smell, spray, viruses, bacteria, dust, haze and the like in the air and then breathing. The air filtering type mask includes daily protective mask and special gas mask. The daily protective mask can be used for filtering droplets, viruses, bacteria, dust, haze and the like in the air, but cannot block harmful gas or peculiar smell in the air. The daily protective mask consists of a mask body and a mask belt, wherein the mask body is generally divided into an inner layer, a middle layer and an outer layer, and the inner layer is made of non-woven fabric and has certain comfort; the middle layer is made of superfine polypropylene fiber melt-blown material, so that better filtering performance can be provided; the outer layer is a non-woven fabric and an ultrathin polypropylene melt-blown material layer, and has certain waterproof performance. A special respirator generally consists of a canister or canister and a mask body. The mask main body is isolated from air, so that a sealing effect is achieved; the poison filtering box and the poison filtering tank play a role in filtering poison gas and dust. The special gas mask is mainly used in the working environment containing low-concentration harmful gas and dust, but has poor protection effect on bacteria and viruses.
The mask is an important line of defense for preventing respiratory infectious diseases of people and is also an important and scarce protective material at present. In order to prevent the spread of epidemic, the public places and the family rooms have to be sprayed with chemical agents for killing, and the chemical agents comprise chlorine-containing disinfectants, iodine-containing disinfectants, peroxide disinfectants and SO2And sulfites and the like. However, these chemicalsAfter the agent is used, noxious irritant gas can be emitted in the air, and the existing market lacks of masks capable of preventing epidemic and gas.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an epidemic prevention and virus prevention mask and a using method thereof, which have the advantages of simple manufacture, comfortable use, convenient replacement, good epidemic prevention and virus prevention effect and the like, and are suitable for being used in areas with epidemic respiratory infectious diseases.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the invention relates to an epidemic prevention and virus prevention mask, which comprises a mask body, an epidemic prevention chip, a virus prevention chip and a mask belt, wherein the mask body comprises an inner layer, a middle layer and an outer layer, the inner layer is made of woven or non-woven cloth, the middle layer is made of superfine polypropylene fiber melt-blown material, the outer layer is made of woven or non-woven cloth, the layers are not bonded, and the epidemic prevention chip and the virus prevention chip are respectively clamped between the inner layer and the middle layer and between the middle layer and the outer layer, or between the outer layer and the middle layer and between the middle layer and the inner layer. The invention adopts the epidemic prevention chip and the gas defense chip as the interlayer of the traditional mask, so that the epidemic prevention and gas defense functions are simultaneously added on the basis of the traditional mask.
The epidemic prevention and virus prevention mask provided by the invention has the advantages that the used epidemic prevention chip and the used virus prevention chip can be extracted from the mask body and can be replaced and reused at regular intervals.
The epidemic prevention and virus prevention mask is formed by soaking degreased fibers or sponges with good air permeability and water absorbability, the size of the degreased fibers or the sponges is similar to that of a mask body, the degreased fibers or the sponges are dried after being soaked in a sulfite solution or/and a bisulfite solution, the degreased fibers or the sponges are packaged for standby use, and the epidemic prevention chip is placed in the mask body and slowly releases SO2Filtering SO in gas through mask2The concentration is maintained at 0.1-1 mg/m3The duration is more than or equal to 24 hours.
The invention relates to an epidemic prevention and gas defense mask, wherein a gas defense chip is made of degreased fiber or sponge with good air permeability and water absorbability and similar to the mask body in size, and solution or/and slurry of alkaline substances capable of absorbing acidic toxic gasSoaking in the solution, air drying, and packaging independently for use, wherein the obtained gas chip has SO-reduced adsorption capacity2≥500mg。
The invention relates to an epidemic prevention and virus prevention mask, wherein sulfite or/and bisulfite refers to a mask capable of slowly releasing SO2Preferably at least one of ammonium sulfite, ammonium bisulfite, sodium sulfite, sodium bisulfite, sodium metabisulfite, potassium sulfite, potassium bisulfite, potassium metabisulfite, magnesium sulfite and magnesium bisulfite.
The invention relates to an epidemic prevention and virus prevention mask, wherein the alkaline substance is at least one selected from sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, calcium oxide, calcium hydroxide, magnesium oxide, magnesium hydroxide, magnesium carbonate and calcium carbonate.
According to the epidemic prevention and virus prevention mask, the filtering efficiency of particulate matters is more than or equal to 95%, and the inactivation rate of pathogens is more than or equal to 99.5%; the air suction resistance of the mask is less than or equal to 343.2Pa under the condition that the air flow is 85L/min; in SO2≤0.015g/m3Or/and Cl is less than or equal to 0.01g/m3In the environment of (1), the mask filtered gas contains SO20.1～1mg/m3、Cl≤0.05mg/m3。
Before the mask is used, the epidemic prevention chip and the virus prevention chip are respectively clamped between the inner layer and the middle layer and between the middle layer and the outer layer of the mask body, or between the outer layer and the middle layer and between the middle layer and the inner layer, and the mask is worn well and used in areas with epidemic respiratory tract infection, so that the epidemic prevention mask can prevent both epidemic and virus, and can improve the immunity of human bodies to respiratory tract infection diseases. After the epidemic prevention and virus prevention mask is used for a period of time, when the epidemic prevention chip and/or the virus prevention chip are close to failure, the epidemic prevention chip and/or the virus prevention chip can be replaced and replaced by a new epidemic prevention chip and/or a new virus prevention chip for reuse.
Compared with the prior art, the invention has the following advantages and effects:
1. the invention adds the epidemic prevention chip on the basis of the conventional mask, so that pathogens in inhaled or exhaled gas lose the proliferation activity after contacting the epidemic prevention chip, thereby effectively blocking the spread of respiratory tract infectious diseases at the minimum cost.
2. The invention depends on human body to low-concentration SO2The tolerance of the chip is realized by manufacturing an epidemic prevention chip by sulfite and slowly releasing SO by utilizing the sulfite in the chip in the respiration process2SO that the user of the epidemic prevention and gas defense mask can continuously contact with the mask containing low concentration SO2The air promotes the respiratory system sulfite oxidase to increase, thereby improving the immunity of the respiratory system sulfite oxidase to respiratory infectious diseases.
3. The invention adds the anti-virus chip on the basis of adding the anti-virus chip, ensures that acid toxic gas can be effectively absorbed in time, and avoids SO in mask filtered gas caused by the contact of the anti-virus chip and the anti-virus chip2The concentration is sharply increased and exceeds the tolerance range of human body, which not only protects the safety and health of the wearer, but also improves the sterilization and epidemic prevention effects of the mask, because the anti-virus chip also has the effect of killing bacteria, viruses and other microorganisms.
4. The invention adds the epidemic prevention chip and the gas defense chip in the mask, and simultaneously adds the functions of epidemic prevention and gas defense on the basis of the traditional mask, and after the mask is used, the invalid chip can be taken out, the body is washed and dried, and the new chip is replaced and reused.
Drawings
FIG. 1 is a schematic view of the structure of an epidemic prevention and gas defense mask:
FIG. 2 is a view taken along line A-A of FIG. 1:
wherein, 1, a mask body; 2. epidemic prevention chip; 3. a gas chip; 4. a mask band;
101. an inner layer; 102. a middle layer; 103. and (4) an outer layer.
Detailed Description
The invention will now be further described with reference to the following examples, which are intended to illustrate the invention but not to limit it further.
Example 1
Referring to fig. 1 and 2, the epidemic prevention and virus prevention mask of the invention comprises a mask body 1, an epidemic prevention chip 2, a virus prevention chip 3 and a mask belt 4, wherein the mask body 1 comprises an inner layer, a middle layer and an outer layer, the inner layer 101 is woven or non-woven fabric, the middle layer 102 is superfine polypropylene fiber melt-blown material, the outer layer 103 is woven or non-woven fabric, and the layers are not bonded. In the embodiment of fig. 2, the epidemic prevention chip 2 and the virus prevention chip 3 are respectively sandwiched between the inner layer 101 and the middle layer 102 and between the middle layer 102 and the outer layer 103, while in another embodiment, the epidemic prevention chip 2 and the virus prevention chip 3 can also be respectively sandwiched between the outer layer 103 and the middle layer 102 and between the middle layer 102 and the inner layer 101, on the basis of the traditional mask, the epidemic prevention and virus prevention functions are added, and the used epidemic prevention chip and the used virus prevention chip can be respectively extracted from the mask body and periodically replaced and reused.
In order to facilitate replacement, the epidemic prevention chip is prepared by soaking absorbent fiber or sponge with good air permeability and water absorbability, which is similar to the mask body in size, in a solution of sulfite or/and bisulfite, air drying, and independently packaging, wherein the epidemic prevention chip is placed in the mask body and slowly releases SO2Filtering SO in gas through mask2The concentration is maintained at 0.1-1 mg/m3The duration is more than or equal to 24 hours;
the sulfite is capable of slowly releasing SO2For example, at least one of ammonium sulfite, ammonium bisulfite, sodium sulfite, sodium bisulfite, sodium metabisulfite, potassium sulfite, potassium bisulfite, potassium metabisulfite, magnesium sulfite, and magnesium bisulfite.
The gas chip is prepared by soaking absorbent fiber or sponge with good air permeability and water absorbability and similar size to the mask body in solution or/and slurry of alkaline substance capable of absorbing acidic toxic gas, air drying, and packaging independently for use, wherein the capacity of the obtained gas chip for absorbing acidic toxic gas is reduced by SO2≥500mg；
The alkaline substance is at least one selected from sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, calcium oxide, calcium hydroxide, magnesium oxide, magnesium hydroxide, magnesium carbonate and calcium carbonate.
The epidemic prevention and gas defense mask has the particle filtering efficiency of more than or equal to 95 percent and pathogensThe inactivation rate is more than or equal to 99.5 percent; the air suction resistance of the mask is less than or equal to 343.2Pa under the condition that the air flow is 85L/min; in SO2≤0.015g/m3Or/and Cl is less than or equal to 0.01g/m3In the environment of (1), the mask filtered gas contains SO20.1～1mg/m3、Cl≤0.05mg/m3。
The specific use method comprises the following steps:
before the anti-epidemic and anti-virus mask is used, the anti-epidemic chip and the anti-virus chip are respectively clamped between the outer layer and the middle layer and between the middle layer and the inner layer of the mask or between the inner layer and the middle layer and between the middle layer and the outer layer, and the anti-epidemic and anti-virus mask is worn well and can be used for preventing epidemic and resisting virus in areas with epidemic respiratory infectious diseases. After the mask is used for a period of time, when the chip of the mask is close to failure, a new chip is taken out and replaced for reuse.
Example 2
When a chicken farm has avian influenza epidemic situation, SO is used by workers2The chicken house is sterilized, and in order to ensure the safety of the live chickens in the chicken house, workers wear the epidemic prevention and virus prevention mask of the embodiment 1 to monitor the live chickens on site, although SO in the air in the chicken house2The concentration of the air reaches 0.8-1.5 ppm, but after the worker wears the epidemic prevention and virus prevention mask, the worker breathes normally (the air flow is 85L/min, the air suction resistance of the mask is 293.1Pa), and the mask filters SO in the air2Concentration of (2)<0.3mg/m3No SO in the inhaled air is detected2The epidemic prevention chip is formed by soaking three layers of superposed medical gauze in a saturated sodium metabisulfite solution and then airing; the anti-virus chip is formed by soaking three layers of superposed medical gauze in saturated sodium bicarbonate solution and then drying the gauze. The epidemic prevention chip is clamped between the outer layer and the middle layer of the mask body, and the gas defense chip is clamped between the inner layer and the middle layer of the mask body. In the sterilizing process, workers clean the mask and replace the chip every day, and detection shows that no living bodies of avian influenza viruses exist on the used chip and the used mask. Particulate matter filtering efficiency of epidemic prevention and gas defense mask worn by chicken farm workers>96.3% pathogen inactivation rate>99.9％。
Example 3
Students in a school suffer from influenza, and in order to prevent the influenza from spreading in the campus, students studyIsolating sick students in schools, disinfecting all classrooms in the whole school by using chlorine-containing disinfectants, and requiring each teacher and student to wear the epidemic prevention and virus prevention mask in the embodiment 1, wherein the epidemic prevention chip is formed by soaking sponge with the thickness of 3mm in an ammonium sulfite/ammonium bisulfite solution and then airing; the anti-poison chip is prepared by soaking sponge with the thickness of 3mm in calcium carbonate/calcium hydroxide slurry and then drying the soaked sponge. The epidemic prevention chip is clamped between the outer layer and the middle layer of the mask body, and the gas defense chip is clamped between the inner layer and the middle layer of the mask body. After the epidemic prevention and gas defense mask is worn, the respirator breathes normally, and the concentration of Cl in gas filtered by the mask is less than or equal to 0.05mg/m3The air hardly feels pungent chlorine smell, and the influenza transmission in the campus is controlled quickly after the epidemic prevention and virus prevention mask is worn.

Claims (9)

1. An epidemic prevention and gas defense mask is characterized in that: the mask comprises a mask body, an epidemic prevention chip, an anti-virus chip and a mask belt, wherein the mask body comprises an inner layer, a middle layer and an outer layer, the inner layer is woven or non-woven fabric, the middle layer is superfine polypropylene fiber melt-blown material, the outer layer is woven or non-woven fabric, the layers are not bonded, and the epidemic prevention chip and the anti-virus chip are respectively clamped between the inner layer and the middle layer and between the middle layer and the outer layer or between the outer layer and the middle layer and between the middle layer and the inner layer.
2. The mask according to claim 1, wherein: the used epidemic prevention chip and the used gas defense chip can be drawn out from the mask body and replaced and reused at regular intervals.
3. The mask according to claim 1 or 2, wherein: the epidemic prevention chip is prepared by soaking absorbent fiber or sponge with good air permeability and water absorbability, which has the size similar to that of the mask body, in sulfite or/and bisulfite solution, air drying, and packaging, wherein the epidemic prevention chip is placed in the mask body to slowly release SO2Filtering SO in gas through mask2The concentration is maintained at 0.1-1 mg/m3The duration is more than or equal to 24 hours.
4. The mask according to claim 1 or 2, wherein: the gas chip is prepared by soaking absorbent fiber or sponge with good air permeability and water absorbability similar to the size of the mask body in solution or/and slurry of alkaline substance capable of absorbing acidic toxic gas, air drying, and packaging independently for later use, wherein the capacity of the obtained gas chip for absorbing acidic toxic gas is reduced by SO2≥500mg。
5. The mask according to claim 3, wherein: the sulfite or/and bisulfite refers to the slow release of SO2Sulfite or/and bisulfite.
6. The mask according to claim 5, wherein: the sulfite or/and bisulfite is at least one selected from ammonium sulfite, ammonium bisulfite, sodium sulfite, sodium bisulfite, sodium metabisulfite, potassium sulfite, potassium bisulfite, potassium metabisulfite, magnesium sulfite, and magnesium bisulfite.
7. The mask according to claim 4, wherein: the alkaline substance is at least one selected from sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, calcium oxide, calcium hydroxide, magnesium oxide, magnesium hydroxide, magnesium carbonate and calcium carbonate.
8. An anti-epidemic and anti-virus mask according to any one of claims 1 to 7, wherein: the particulate matter filtering efficiency of the epidemic prevention and virus prevention mask is more than or equal to 95 percent, and the pathogen inactivation rate is more than or equal to 99.5 percent; the air suction resistance of the mask is less than or equal to 343.2Pa under the condition that the air flow is 85L/min; in SO2≤0.015g/m3Or/and Cl is less than or equal to 0.01g/m3In the environment of (1), the mask filtered gas contains SO20.1～1mg/m3、Cl≤0.05mg/m3。
9. The use of the anti-epidemic and anti-virus mask according to any one of claims 1 to 8, wherein: before the mask is used, the epidemic prevention chip and the gas defense chip are respectively clamped between the inner layer and the middle layer and between the middle layer and the outer layer of the mask body, or between the outer layer and the middle layer and between the middle layer and the inner layer, and the mask is worn well and can be used in areas with epidemic respiratory tract infection.
CN202011203801.XA 2020-11-02 2020-11-02 Epidemic prevention and gas defense mask and use method thereof Pending CN112315059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011203801.XA CN112315059A (en) 2020-11-02 2020-11-02 Epidemic prevention and gas defense mask and use method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011203801.XA CN112315059A (en) 2020-11-02 2020-11-02 Epidemic prevention and gas defense mask and use method thereof

Publications (1)

Publication Number Publication Date
CN112315059A true CN112315059A (en) 2021-02-05

Family

ID=74324333

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011203801.XA Pending CN112315059A (en) 2020-11-02 2020-11-02 Epidemic prevention and gas defense mask and use method thereof

Country Status (1)

Country Link
CN (1) CN112315059A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101035615A (en) * 2004-08-27 2007-09-12 唐纳森公司 Impregnated filter element, and methods
CN101979112A (en) * 2010-11-22 2011-02-23 吉林大学 Hidden broad-spectrum respiration purifier
US20140182602A1 (en) * 2012-12-28 2014-07-03 San-M Package Co., Ltd. Mask
CN206760826U (en) * 2017-04-24 2017-12-19 佛山市高科合创科技有限公司 Anti- the PM2.5 mouth masks and its filter core of a kind of replaceable cartridge
TWM601971U (en) * 2020-04-20 2020-10-01 葉晉彰 Mask with replaceable filter material
DE202020105751U1 (en) * 2020-02-14 2020-10-22 Guangzhou New Stone Automotive Products Co., Ltd. An antivirus N95 filter element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101035615A (en) * 2004-08-27 2007-09-12 唐纳森公司 Impregnated filter element, and methods
CN101979112A (en) * 2010-11-22 2011-02-23 吉林大学 Hidden broad-spectrum respiration purifier
US20140182602A1 (en) * 2012-12-28 2014-07-03 San-M Package Co., Ltd. Mask
CN206760826U (en) * 2017-04-24 2017-12-19 佛山市高科合创科技有限公司 Anti- the PM2.5 mouth masks and its filter core of a kind of replaceable cartridge
DE202020105751U1 (en) * 2020-02-14 2020-10-22 Guangzhou New Stone Automotive Products Co., Ltd. An antivirus N95 filter element
TWM601971U (en) * 2020-04-20 2020-10-01 葉晉彰 Mask with replaceable filter material

Similar Documents

Publication Publication Date Title
WO2009130799A1 (en) Multilayered mask
US11219255B2 (en) Self-contained, mobile breathing apparatus or appliance that supplies pathogen and endotoxin free, rhythmically breathable air to the wearer or treated space through active, continuous bio-deactivation and destruction of bacteria, fungi, viral and allergenic/antigenic matter safely when using benign, household, rechargeable filtration media
CN111469498A (en) Medical protective material containing copper ion antibacterial fabric, protective mask and protective mask
CN112315053B (en) Filter type mask and manufacturing method thereof
KR20190133527A (en) Ozone mask with exhalation valve
CN212393960U (en) Titanium silver copper zinc composite sterilization type mask
CN112056651A (en) Ultraviolet disinfecting and killing mask
CN111227362A (en) Face mask/mouth mask capable of killing germs or viruses in exhaled breath
CN112315059A (en) Epidemic prevention and gas defense mask and use method thereof
CN206303253U (en) A kind of Anti-epidemic mask
CN203677778U (en) Emergency wetting type smoke-proof anti-toxin mouth mask
CN211721962U (en) Antiviral mask with killing and inactivating functions
CN205108630U (en) Anti -infection gauze mask for artificial respiration
CN211185966U (en) Gauze mask
CN212036150U (en) Novel antibacterial mask
CN212118783U (en) Active multifunctional epidemic prevention and control tool
CN111317201A (en) Protective mask capable of sterilizing and inactivating virus
CN213884806U (en) Take respiratory tube&#39;s disinfection gauze mask that can purify to disinfect
CN202233127U (en) Mask
CN213188193U (en) Protective mask capable of sterilizing and inactivating virus
CN211631872U (en) Mask for isolating virus and bacteria
CN211932723U (en) PTFE micro-filtration membrane protective facial mask
CN215124619U (en) Detachable anti-virus mask
CN113197374A (en) Novel automatic sterilization protective facial mask
CN215737049U (en) Epidemic prevention gauze mask

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination