2, distinguish between the front and back of the mask, can not be worn on both sides.

3. Don't mix or share masks with others.

4, pinch the nose clip, so that the mask fits the cheek to avoid air leakage.

5. Disposable medical masks and surgical masks are limited in use and should be replaced regularly. It is not recommended to clean or use disinfectants, heating and other methods for disinfection before use.

6. Masks that need to be reused should be hung in a clean, dry and ventilated place or put in a clean and breathable paper bag after use. Masks should be stored separately to avoid contact with each other, and the users of masks should be marked.

7. Spare masks are recommended to be stored in the original packaging bag. If it is not packaged separately, it can be stored in a disposable food bag and ensure that it is not deformed.

8. The mask should be replaced in time after it becomes wet, dirty and deformed. Masks used by healthy people can be treated according to the requirements of domestic waste classification.

9, in crowded places, such as offices, shopping malls, restaurants, conference rooms, workshops, take the van elevator, public transport, etc. , should carry spare disposable medical masks or surgical masks.

10, people with cough, sneezing and other symptoms should wear disposable medical masks or medical surgical masks.

1 1. People who live with people who are isolated at home and discharged from hospital should wear disposable medical masks or surgical masks.