WS/T 697-2020Guidelines for personal protection of specific populations during the new crown pneumonia epidemic (English PDF)

4.1 Principles of Use

Due to work, contact or possible contact with new coronavirus pneumonia cases (confirmed and suspected cases) and asymptomatic infections and their pollution Personal protective equipment should be used by all personnel who are involved in objects (blood, body fluids, secretions, vomit and excrement, etc., contaminated objects or environmental surfaces, etc.).

4.2 Gloves

When specific groups of people enter the contaminated area or perform related operations (the specific groups of people are undergoing diagnosis and treatment operations, laboratory testing, corpse treatment, transfer when working during transportation, etc.), wear rubber, nitrile and other materials according to the job content. When contacting different patients or gloves are broken, it should be promptly eliminated Poison, change gloves, and perform hand hygiene.

4.3 Respiratory protective equipment

When entering a contaminated area or performing related operations (special groups of people are performing diagnosis and treatment operations, laboratory testing, corpse treatment, transfer, etc.

At the same time), respiratory protective equipment should be selected and worn reasonably. Air tightness check should be done before each wearing. When removing multiple or changing protective equipment, you should Finally remove the respiratory protective equipment.

4.4 Protective visor or goggles

When entering a contaminated area or performing related operations (special groups of people are performing diagnosis and treatment operations, laboratory testing, corpse treatment, transfer, etc.

When the eyes, conjunctiva and face are at risk of being contaminated by blood, body fluids, secretions, excreta and liquid splashes, they should wear protective Face screen or goggles. Reusable protective visors or goggles should be disinfected and dried in time after each use, and kept in sanitary conditions to prevent secondary pollution.

4.5 Protective clothing

When entering a contaminated area or performing related operations (special groups of people are performing diagnosis and treatment operations, laboratory testing, corpse treatment, transfer, etc.

At times), you should change your personal clothes and wear work clothes (ordinary work clothes or surgical scrub clothes or disposable clothes, etc.), plus protective clothing.

6.1 Epidemiological investigators

When conducting on-site investigations of suspected, confirmed cases, asymptomatic infections and fever patients in the epidemic area, it is advisable to wear work clothes and work once Caps, disposable gloves, protective clothing, KN95 and above particle protective masks or medical protective masks, protective visors or goggles, work Shoes or rubber boots, waterproof boot covers, etc.

6.2 Staff in the isolation ward

It is advisable to wear work clothes, disposable work caps, disposable gloves, protective clothing, medical protective masks, protective visors or goggles, and work shoes or rubber boots, waterproof boot covers, etc. When operating at close range and a large amount of aerosol may be generated, use a powered air filter respirator.

6.3 Staff in medical observation places

It is advisable to wear disposable work caps, medical surgical masks, overalls, and disposable gloves. When necessary, KN95 and above grade particles can be used Protective masks or medical protective masks.

6.4 Cases and asymptomatic infection transferers

It is advisable to wear work clothes, disposable work caps, disposable gloves, protective clothing, medical protective masks, protective visors or goggles, and work shoes or rubber boots, waterproof boot covers, etc.

6.5 Corpse handlers

Work clothes, disposable work caps, disposable gloves and long-sleeved thick rubber gloves, protective clothing, KN95 and above particles should be worn Protective masks or medical protective masks or powered air filter respirators, protective visors, work shoes or rubber boots, waterproof boot covers, waterproof aprons or waterproof isolation clothing, etc.

6.6 Environmental cleaning and disinfection personnel

Work clothes, disposable work caps, disposable gloves and long-sleeved thick rubber gloves, protective clothing, KN95 and above particles should be worn Protective masks or medical protective masks or self-priming filter anti-particulate respirators, protective visors or goggles, work shoes or rubber boots, waterproof boots Cover, waterproof apron or waterproof isolation gown. When using a self-priming filter anti-particulate respirator, select a dust-toxin combination filter according to the type of disinfectant Boxes or canisters should be protected against chemicals such as disinfectants.

6.7 Specimen collection personnel

It is advisable to wear work clothes, disposable work caps, double gloves, protective clothing, KN95 and above particulate protective masks or medical protection Masks, protective visors, work shoes or rubber boots, waterproof boot covers. If necessary, wear a waterproof apron or waterproof isolation clothing.

6.8 Laboratory staff

It is advisable to wear work clothes, disposable work caps, double gloves, protective clothing, KN95 and above particulate protective masks or medical protection Mask or powered air filter respirator, protective visor or goggles, work shoes or rubber boots, waterproof boot covers. When necessary, waterproof enclosures should be worn Skirt or waterproof isolation gown.

6.9 Health and quarantine personnel

It is advisable to wear work clothes, disposable work caps, disposable gloves, and medical surgical masks. When necessary, KN95 and above grade particles can be used Protective masks or medical protective masks.

6.10 Selection of personal protective equipment for specific groups

The selection of personal protective equipment for specific groups of people during the new crown pneumonia epidemic is shown in Table 1.

7.1.1 Dressing order

Step 1.Hand hygiene, change personal clothes and wear work clothes, remove personal items such as jewelry, watches, mobile phones, etc.; wear work shoes or rubber boots, Disposable work cap;

Step 2.Wear a medical protective mask and do an air tightness check;

Step 3.Wear inner gloves (when performing operations that are likely to cause damage to the gloves or serious contamination), and check the air tightness;

Step 4.Wear protective clothing and ensure that the cuffs of the protective clothing cover the cuffs of the inner gloves;

Step 6.Wear protective hoods or protective visors or goggles (wear when contacting patients with vomiting, diarrhea or bleeding);

Step 7.Wear a waterproof apron or waterproof isolation gown (wear when touching patients with vomiting, diarrhea or bleeding);

Step 8.Wear outer gloves (cover the cuffs of protective clothing or waterproof isolation clothing), and do an air tightness check;

Step 9.Supervisors assist in checking and confirming the wearing effect, ensuring that there is no naked hair, skin and clothing, and normal physical activity does not affect the diagnosis Treatment and other work;

Step 10.If touching the patient, disinfect the outer gloves.

With the guidance and assistance of qualified personnel on site, check whether all personal protective equipment is complete, intact, and of appropriate size. medical Protective masks can be replaced with KN95 and above particulate protective masks.

7.1.2 Take off sequence

Step 1.Wipe and disinfect the outer layer of personal protective equipment when there are visible contaminants;

Step 2.Disinfect outer gloves;

Step 3.(if wearing) take off the waterproof apron (if wearing waterproof isolation gown, first take off the outer gloves or take off together with the isolation gown), disinfect the outside Layer gloves Step 4.Take off the outer gloves and disinfect the inner gloves;

Step 5.Take off the protective visor (goggles) and disinfect the inner gloves;

Step 6.(if worn) take off the protective hood and disinfect the inner gloves;

Step 7.Take off the protective clothing, take off the waterproof boot cover at the same time, and disinfect the inner gloves;

Step 8.Take off the inner gloves, disinfect your hands, and replace with new inner gloves;

Step 9.Disinfect and replace work shoes or rubber boots, and disinfect inner gloves;

Step 10.Take off medical protective masks and disposable work caps, and disinfect inner gloves;

Step 11.Take off the inner gloves, wash and disinfect your hands; wear a new medical surgical mask in time;

Step 12.Instruct or assist the staff to evaluate the removal process together with the staff. If the skin or mucous membrane may be contaminated, it should be disinfected in time;

Step 13.Change back to personal clothes and take a shower if possible.

When taking off personal protective equipment, trained and qualified personnel should be present to guide or assist, and the personnel should wear personal protective equipment (including at least Protective clothing or isolation gowns, masks, protective visors or goggles and gloves, etc.), evaluate the contamination of personal protective equipment, and compare the removal sequence table, Orally prompt each removal sequence, assist in removing equipment and disinfect gloves in time.

7.2 Putting on and taking off the protective equipment for wearing positive pressure air supply filter respirator

7.2.1 Dressing order

Step 1.Hand hygiene, change personal clothes and wear work clothes, remove personal items such as jewelry, watches, mobile phones, etc.; wear work shoes or rubber boots, Disposable work cap;

Step 2.Wear a medical surgical mask;

Step 3.Wear inner gloves;

Step 4.Wear protective clothing and ensure that the cuffs of the protective clothing cover the cuffs of the inner gloves;

Step 5.Wear waterproof boot covers;

Step 6.Wear a positive pressure air supply filter respirator;

Step 7.Wear a waterproof apron or waterproof isolation gown (needed by patients who have contact with vomiting, diarrhea or bleeding);

Step 8.Wear outer gloves (cover the cuffs of protective clothing or isolation clothing);

Step 9.Supervisors assist in checking and confirming the wearing effect, ensuring that there is no naked hair, skin and clothing, and will not affect the diagnosis and treatment activities;

Step 10.If touching the patient, disinfect the outer gloves.

With the guidance and assistance of qualified personnel on site, check whether all personal protective equipment is complete, intact, and of appropriate size.

7.2.2 Take off sequence

Step 1.Wipe disinfection when there are visible contaminants on the outer layer of personal protective equipment;

Step 2.Disinfect outer gloves;

Step 3.(if wearing) take off the waterproof apron (if wearing waterproof isolation gown, take off the outer gloves first or take off together with the isolation gown) and disinfect the outer gloves;

Step 4.Take off the outer gloves and disinfect the inner gloves;

Step 5.Take off the positive pressure air supply filter respirator and disinfect the inner gloves;

Step 6.Take off the protective clothing, take off the waterproof boots at the same time, and disinfect the inner gloves;

Step 7.Take off the inner gloves, hand hygiene, and replace with new inner gloves;

Step 8.Disinfect and replace work shoes or rubber boots;

Step 9.Take off the medical surgical mask and disposable work cap, and disinfect the inner gloves;

Step 10.Take off the inner gloves, wash your hands, and disinfect your hands; wear a new surgical mask in time;

Step 11.Instruct or assist the staff to evaluate the removal process together with the staff, if it may contaminate the skin and mucous membranes, disinfect them in time;

Step 12.Change back to personal clothes and take a shower if possible.

When taking off personal protective equipment, trained and qualified personnel should be present to guide or assist, and the personnel should wear personal protective equipment (including at least Protective clothing or gowns, masks, protective masks or protective glasses and gloves, etc.), assess the contamination of personal protective equipment, and compare the order of removal Table, verbally prompt each removal sequence, assist in removing equipment and timely disinfect gloves.