When wearing masks on a daily basis, the following points should be noted: hands must be cleaned before and after wearing masks;Wear the mask according to the packaging instructions, fasten the tether of the mask, make the mask close to the face, and strictly distinguish the inside from the outside;If it is colored, the colored face should be turned outwards. The mask of ordinary people should be changed and cleaned every day. After cleaning, the mask should be boiled with boiling water and then hung in the sun.For those who have frequent contact with SARS patients or suspected patients, such as medical staff, the masks should be changed every 4 hours and disinfected.When the mask is stained, it should be replaced immediately;Discarded masks should be sealed and placed in a covered dustbin.