2. Masks should be stored separately to avoid contact with each other, and the users of masks should be marked. Medical standard protective masks can not be cleaned, nor can they be disinfected with disinfectants or heat; Cleaning of self-priming filter respirator (full face or half face) and power filter respirator should be carried out according to the instructions; Cotton masks can be cleaned and disinfected, and other non-medical masks should be treated according to the instructions.
3. Ordinary residents use disposable masks in places with less risk. They can be reused under the condition of ensuring the cleanliness and structural integrity of the mask, especially the inner layer is not polluted. After each use, it should be kept indoors in a clean, dry and ventilated place.
4. You can wear ordinary medical masks, that is, disposable medical masks, take transportation, enter and leave crowded public places, including shopping malls, elevators and conference rooms, in general medical institutions (except fever clinics). In this case, put the mask in a clean, dry and ventilated place after going home, and it can also be reused.
5. It is recommended that staff in crowded places wear medical surgical masks, including personnel engaged in industries related to the epidemic, administrative personnel, police, security guards, couriers, etc. In this case, the use time of the mask can be appropriately extended according to the actual situation. Generally speaking, if the mask is not obviously dirty and deformed, there is no need to change it every four hours. However, if the mask is dirty, deformed, damaged or smelly, it needs to be replaced in time.