During the disease epidemic, after coming home from an outing, you should promptly wash your hands with hand sanitizer and running water, or disinfect your hands with alcohol-containing hand sanitizer or disinfectant. Do a good job of cleaning tables, chairs and other object surfaces every day and disinfect them regularly; after a guest (of unknown health status) visits, disinfect the relevant object surfaces indoors in a timely manner by choosing a legal and effective disinfectant or disinfectant wipes to wipe and disinfect. Ventilate the room well, naturally or mechanically. In winter, when opening windows for ventilation, care should be taken to avoid colds caused by the large temperature difference between indoor and outdoor. Object surfaces can be wiped with chlorine disinfectants such as chlorine dioxide or disinfectant wipes. Hands and skin are recommended to choose effective disinfectants such as iodophor, chlorine-containing disinfectants and hydrogen peroxide disinfectants for hand and skin or quick-drying hand disinfectants for wiping and disinfection.