Guidelines for using face mask to fightting against novel coronavirus

The novel coronavirus pneumonia is a new infectious disease. According to the current understanding of the disease, this guideline is formulated.
The novel coronavirus pneumonia is only applicable to the daily work and life of the public under the II level during the epidemic of novel coronavirus pneumonia.

1. Classification and standard basis of face face masks
1). Name: Civil sanitary face mask
Standard basis: civil health face mask
T / CNTAC 55-2020      T/CNTAC 09104-2020

2). Name: disposable medical face mask
Standard basis: disposable medical face mask
YY / t0969-2013

3). Name: medical surgical face mask
Standard basis: medical surgical face mask yy0469-2011

4). Name: medical protective face mask
Standard basis: technical requirements for medical protective face face masks gb19083-2010

5). Name: self suction filter type anti particle respirator (including N95 respirator commonly known by the public)

Standard basis: respirator for self-priming and filtration of respiratory protective equipment (gb2626-2006); selection, use and maintenance of respiratory protective equipment (GB / t18664-2002).

2. Application scope of face face mask

1） Civil health face mask
It is suitable for ordinary people in daily environment to block the spread of particles such as droplets, pollen and microorganisms.

2） Disposable medical face mask
It is suitable for wearing in general medical environment to block the exhalation of pollutants from mouth and nose.

3） Medical surgical face mask
It is suitable for clinical medical staff to wear it in the process of invasive operation.

4） Medical protective face mask
It is suitable for filtering particles in the air, blocking droplets, blood, body fluids, secretions, etc. under medical working environment.

5） Self priming filter type particle respirator (including N95 respirator commonly known by the public)
It is suitable for preventing all kinds of particles, including dust, smoke, fog and microorganism.

3.Scene guide of wearing face mask

1） Outdoor environment
In principle, face face masks may not be worn. Except for occupational protection and personnel who need frequent contact with different groups of people during work (such as traffic police, industry law enforcement personnel, community workers, etc.). It is recommended that people suffering from any respiratory infectious diseases (such as influenza, common cold, etc.) wear face face masks when going to public places (areas). It is generally recommended to wear a civil health face mask or a disposable medical face mask.

2） Indoor environment

① Family environment
In principle, face face masks are not required at home, except for the following situations:

a). novel coronavirus pneumonia cases with close contacts with home quarantine medical guidelines should be referred to the home quarantine medical observation subjects at home.

b). When an individual suffers from respiratory infectious diseases, he should wear a face mask. It is generally recommended to wear a civil health face mask or a disposable medical face mask, and try to keep a distance of more than 1 meter from other healthy family members.

c). It is strongly recommended that nursing staff who care for the elderly, infants and long-term bedridden patients should stop nursing when they are suffering from respiratory infectious diseases; they should wear medical surgical face face masks and keep their hands clean when necessary.

② Office meeting place

a). When multiple teams work together in large open rooms and deep places, the staff shall wear face face masks.

b). When multiple units work together on the same floor and the staff density is large, the staff shall wear face face masks.

c). When external personnel go to the office area or meeting place, they shall wear face face masks.

d). Service personnel in the meeting place and cleaning personnel in the office area shall wear face face masks during work.

e). face face masks should be worn in working environment where risks cannot be determined, such as business negotiation and customer visit.

③ Public places (areas)
When the public goes to public places (areas) such as shopping malls and supermarkets, the staff shall wear face face masks when providing services. It is generally recommended to wear a civil health face mask or a disposable medical face mask. It is strongly recommended that people suffering from respiratory infectious diseases should avoid public places with dense population, and wear disposable medical face face masks when they have to go.

④ Student classroom
Wear face face masks according to the school's prevention and control requirements.

⑤ Group accommodation
In principle, it is not necessary to wear face face masks when the dormitory personnel are confirmed to be in good health with each other. When there are visitors, they should wear face face masks.

⑥ Medical institutions
Anyone who goes to the hospital for treatment or accompanies others to the hospital needs to wear a face mask. It is generally recommended to wear medical face face masks and try to keep more than 1 meter away from other patients.

3） Other situations
For other situations where the risk cannot be determined, such as taking the bus, subway, van elevator, etc. during the peak period, as well as those who frequently communicate and contact with the public due to work needs (such as catering services, bank staff, salesmen, cashiers, etc.), it is recommended to wear face face masks, which can usually be used for civil health or disposable medical face face masks. If there are other requirements of the competent department of the industry, the relevant regulations of the competent department of the industry shall be implemented.

4.Wearing method of disposable medical face mask
Keep hands clean before wearing face face masks. Distinguish the front and back of the face mask, keep the dark side outward (or fold downward), and keep the metal strip on top. First hang the ear on both ears, then pull the folds up and down to cover the mouth, nose and jaw. Press the fingertips of both hands along the metal strip of the bridge of nose, from the middle to both sides, and slowly press inward until they are close to the bridge of nose. Adjust the face mask properly to make it fit the face tightly until the nose and mouth are covered.

5.Other suggestions for wearing face face masks

1)  The face mask shall be replaced in time when it is wet or dirty.

2) After the face mask is discarded, it should not be thrown everywhere. It should be treated according to the classification requirements of domestic garbage.