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Notification And Interpretation Of Technical Guidelines For The Selection And Use Of Respirators For Preventing New Coronavirus Infection Among Different Populations
At present, in order to guide different populations to choose and use masks scientifically and rationally and reduce unnecessary excessive protection, the State Council should compile the technical guidelines for the prevention and selection of new coronavirus infection masks and prevent the spread and spread of the new coronavirus infection.
Technical guidelines for mask selection and use
During the epidemic of new coronavirus infection, it is recommended to choose the appropriate mask type without excessive protection. The following guidelines are put forward according to the nature and risk level of epidemic prevention.
High risk exposures
(1) type of staff:
1. in all cases of new coronavirus pneumonia patients (confirmed cases and suspected cases), all the staff in the ward, ICU and observation room, including clinicians, nurses, nursing workers, cleaners, corpses handling personnel, etc.
2. doctors and nurses in fever clinic of designated medical institutions in epidemic areas;
3. public health doctors who conduct epidemiological surveys of confirmed cases and suspected cases.
(two) protection proposals:
1. medical respirator;
2. to wear goggles or protective panels when first aid and tracheal intubation and tracheoscopy.
3. when the medical respirator is in short supply, the respirator with N95/KN95 or above can be used instead of the respirator. The self-priming filter respirator (full or half face type) can also be used to filter the cotton with particulate matter. The power supply air filter respirator has better protection effect.
Two. Higher risk exposures
(1) type of staff:
1. emergency medical staff and so on.
2. public health doctors who conduct close epidemiological surveys.
3. epidemic situation related environmental and biological samples inspectors.
(two) protection proposals:
Particulate respirators that meet N95/KN95 and above standards;
Three. Medium risk exposures
(1) type of staff:
1. general outpatient, ward work, medical staff, etc.
2. staff in crowded places include staff in hospitals, airports, railway stations, subways, ground buses, airplanes, trains, supermarkets, restaurants, etc.
3. engaged in epidemic related administrative management, police, security, express and other practitioners;
4. home segregation and its co workers.
(two) protection proposals:
Wear surgical masks.
Four, lower risk exposures
(1) type of staff:
1. the public in supermarkets, shopping malls, transportation vehicles, elevators and other densely populated areas.
2. indoor office environment;
3. patients in medical institutions (except fever clinic);
4. children and students who concentrate on learning and activities.
(two) protection suggestions.
Wear disposable medical masks (children choose products of comparable performance).
Five. Low risk exposures
(1) the type of personnel.
1. home indoor activities, scattered residents;
2. outdoor activities, including children and students in open spaces / venues;
3. well ventilated workplace workers.
(two) protection suggestions.
Masks are not allowed in homes, well ventilated and low density places. Non medical masks, such as cotton yarn, activated carbon and sponge, have certain protective effects, and also reduce the spread of droplets caused by coughing, sneezing and speaking.
Six, use matters
During the epidemic of new coronavirus infection, the use of masks can be appropriately extended under the premise of ensuring public health.
(1) mask replacement.
1. the medical standard respirator has a time limit. The mask is specially designed for people and can not be used interpersonally. High risk personnel after the end of work, halfway meals (drinking water), toilet and other protective devices removed, re-enter to be replaced;
2. mask is immediately replaced by blood, respiratory tract / nasal secretions, and other body fluids.
3. higher risk personnel need to be replaced after receiving highly suspected patients.
4. respirators worn by other risk categories can be repeatedly used. Wash your hands according to the rules before wearing the mask, and avoid contacting the inside of the mask when wearing. Mask must be changed in time when it is dirty, deformed, damaged and odorous.
(two) masks are kept, cleaned and sterilized.
1. if you need to use the mask again, you can hang it in a clean, dry ventilating place or place it in a clean, breathable paper bag. Masks should be stored separately, avoiding contact with each other and identifying the users of mask.
2. medical standard respirators should not be cleaned or disinfectant or heated.
3. cleaning reference manual of self-priming filter respirator (full or half face type) and power supply air filter respirator.
Technical guidelines for mask selection and use
During the epidemic of new coronavirus infection, it is recommended to choose the appropriate mask type without excessive protection. The following guidelines are put forward according to the nature and risk level of epidemic prevention.
High risk exposures
(1) type of staff:
1. in all cases of new coronavirus pneumonia patients (confirmed cases and suspected cases), all the staff in the ward, ICU and observation room, including clinicians, nurses, nursing workers, cleaners, corpses handling personnel, etc.
2. doctors and nurses in fever clinic of designated medical institutions in epidemic areas;
3. public health doctors who conduct epidemiological surveys of confirmed cases and suspected cases.
(two) protection proposals:
1. medical respirator;
2. to wear goggles or protective panels when first aid and tracheal intubation and tracheoscopy.
3. when the medical respirator is in short supply, the respirator with N95/KN95 or above can be used instead of the respirator. The self-priming filter respirator (full or half face type) can also be used to filter the cotton with particulate matter. The power supply air filter respirator has better protection effect.
Two. Higher risk exposures
(1) type of staff:
1. emergency medical staff and so on.
2. public health doctors who conduct close epidemiological surveys.
3. epidemic situation related environmental and biological samples inspectors.
(two) protection proposals:
Particulate respirators that meet N95/KN95 and above standards;
Three. Medium risk exposures
(1) type of staff:
1. general outpatient, ward work, medical staff, etc.
2. staff in crowded places include staff in hospitals, airports, railway stations, subways, ground buses, airplanes, trains, supermarkets, restaurants, etc.
3. engaged in epidemic related administrative management, police, security, express and other practitioners;
4. home segregation and its co workers.
(two) protection proposals:
Wear surgical masks.
Four, lower risk exposures
(1) type of staff:
1. the public in supermarkets, shopping malls, transportation vehicles, elevators and other densely populated areas.
2. indoor office environment;
3. patients in medical institutions (except fever clinic);
4. children and students who concentrate on learning and activities.
(two) protection suggestions.
Wear disposable medical masks (children choose products of comparable performance).
Five. Low risk exposures
(1) the type of personnel.
1. home indoor activities, scattered residents;
2. outdoor activities, including children and students in open spaces / venues;
3. well ventilated workplace workers.
(two) protection suggestions.
Masks are not allowed in homes, well ventilated and low density places. Non medical masks, such as cotton yarn, activated carbon and sponge, have certain protective effects, and also reduce the spread of droplets caused by coughing, sneezing and speaking.
Six, use matters
During the epidemic of new coronavirus infection, the use of masks can be appropriately extended under the premise of ensuring public health.
(1) mask replacement.
1. the medical standard respirator has a time limit. The mask is specially designed for people and can not be used interpersonally. High risk personnel after the end of work, halfway meals (drinking water), toilet and other protective devices removed, re-enter to be replaced;
2. mask is immediately replaced by blood, respiratory tract / nasal secretions, and other body fluids.
3. higher risk personnel need to be replaced after receiving highly suspected patients.
4. respirators worn by other risk categories can be repeatedly used. Wash your hands according to the rules before wearing the mask, and avoid contacting the inside of the mask when wearing. Mask must be changed in time when it is dirty, deformed, damaged and odorous.
(two) masks are kept, cleaned and sterilized.
1. if you need to use the mask again, you can hang it in a clean, dry ventilating place or place it in a clean, breathable paper bag. Masks should be stored separately, avoiding contact with each other and identifying the users of mask.
2. medical standard respirators should not be cleaned or disinfectant or heated.
3. cleaning reference manual of self-priming filter respirator (full or half face type) and power supply air filter respirator.
4. the cotton gauze mask can be cleaned and sterilized. Other non medical masks are processed according to the instructions.
Mask types and recommended users:
Interpretation of "notice on printing and distributing technical guidelines for prevention and selection of respirators for new coronavirus infection among different populations"
At present, in order to guide different populations to choose and use masks scientifically and rationally and reduce unnecessary excessive protection, the State Council should compile the technical guidelines for the prevention and selection of new coronavirus infection masks and prevent the spread and spread of the new coronavirus infection.
This guideline mainly refers to the Chinese standards (YY/T YY 0969 disposable medical masks, YY 0469 medical surgical masks, GB19083 medical respirators, GB2626-2006 respirator, self-priming filter respirator, GB2890-2009 respirator, self-priming respirator, GB/T18664-2002 respirator and other domestic standards, CE certified respirator standard, American NIOSH respirator certification standard and guidelines for the extension of use of respirators and restricted reuse. Guidelines for selection and use of respirators are put forward according to the nature and risk level of epidemic prevention. According to the exposure risk of different crowds to environmental pollution of new coronavirus, exposure risk is divided into five levels: high risk, high risk, medium risk, low risk and low risk. Each level is classified according to the personnel category, covering all kinds of people, such as front-line medical and health personnel, general medical personnel, epidemic control and management personnel, the general public, students and so on. According to their location, suggestions for protection are put forward, and suggestions on using masks to replace, mask cleaning, disinfection, and matters needing attention are put forward.
At present, in order to guide different populations to choose and use masks scientifically and rationally and reduce unnecessary excessive protection, the State Council should compile the technical guidelines for the prevention and selection of new coronavirus infection masks and prevent the spread and spread of the new coronavirus infection.
This guideline mainly refers to the Chinese standards (YY/T YY 0969 disposable medical masks, YY 0469 medical surgical masks, GB19083 medical respirators, GB2626-2006 respirator, self-priming filter respirator, GB2890-2009 respirator, self-priming respirator, GB/T18664-2002 respirator and other domestic standards, CE certified respirator standard, American NIOSH respirator certification standard and guidelines for the extension of use of respirators and restricted reuse. Guidelines for selection and use of respirators are put forward according to the nature and risk level of epidemic prevention. According to the exposure risk of different crowds to environmental pollution of new coronavirus, exposure risk is divided into five levels: high risk, high risk, medium risk, low risk and low risk. Each level is classified according to the personnel category, covering all kinds of people, such as front-line medical and health personnel, general medical personnel, epidemic control and management personnel, the general public, students and so on. According to their location, suggestions for protection are put forward, and suggestions on using masks to replace, mask cleaning, disinfection, and matters needing attention are put forward.
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