How long a new coronavirus can survive after attaching to the surface of an object may be related to the ambient temperature and humidity and the material of the surface of the object, so care should be taken to maintain hand hygiene and disinfect the room regularly, especially the surface of commonly used objects, to minimize the possibility of virus survival and infection. It can even survive for several years. When the temperature rises to 37 ℃, the survival time is a few hours. Under the premise of temperature control, when the relative humidity is 50%, the survival time of the new coronavirus is the shortest; 2, the surface material of the object: relevant experimental research shows that the new coronavirus can last 48 hours for infection; live virus can survive on the aerosol for about 3 hours; on the surface of copper objects can survive for about 4 hours; on the surface of cardboard can survive for about 24 hours; on the surface of stainless steel or plastic items can Maintain about 2-3 days. In contrast, 0.5% hydrogen peroxide, 62%-75% alcohol or 84 disinfectant have a killing effect on most bacteria and other microorganisms and can be effectively inactivated by surface disinfection procedures within 1 minute. In addition to surviving on the surface of objects, the new coronavirus can also survive in the air for several hours in the form of droplets, so medical masks should be properly worn when going out to effectively avoid infection.