Legal basis: Notice on Printing and Distributing the Guide to Wearing Masks for the Public and Key Occupational Groups (August Edition 202 1) Article 1 Scenes and occasions where the general public needs to wear masks. 1. Shopping malls, supermarkets, cinemas, venues, exhibition halls, airports, docks, public areas of hotels and other crowded indoor places; 2. When taking a van elevator and public transportation such as airplanes, trains, ships, long-distance buses, subways and buses; 3. In crowded outdoor places such as open-air squares, theaters and parks; 4. When visiting a hospital or accompanying a doctor, receiving health checks such as body temperature detection, checking health codes, and registering travel information; 5. When symptoms such as nasopharyngeal discomfort, cough, sneezing and fever occur; 6. When restaurants and canteens are not eating.