For rooms infected with novel coronavirus pneumonia, if disinfected for personal protection during an epidemic, it is important to wash your hands regularly and generally spray the room with 75% alcohol or chlorine disinfectant, e.g. floors and surfaces of objects, which can also be wiped with chlorine disinfectant wipes. In healthcare settings, rooms can also be disinfected with ultraviolet light, and clothing and shoe soles can be disinfected by spraying with 75% alcohol. If the room is occupied by a confirmed or suspected patient with novel coronavirus pneumonia, it should be disinfected 2-3 times a day, and it can also be disinfected with alcohol or chlorine-containing preparations and ultraviolet light. If the patient leaves the room permanently, final disinfection is required, which is more stringent to achieve the complete elimination of the novel coronavirus, and is usually carried out by specialized eliminators, including floors, walls, and surfaces of objects, etc., and the room should be closed for at least two hours or more after disinfection.