New Coronavirus can generally survive in the air for 3 hours, after which its activity will decrease significantly. Its survival time is related to the humidity and temperature of the air, as well as air circulation. 1. Temperature and humidity (1) Low temperature and low humidity: The survival of NCR virus is more stable at low temperature and low humidity. Therefore, NCR virus is commonly found in winter and spring seasons, and is distributed or in outbreaks. (2) High temperature and high humidity: New coronavirus does not like high temperature and high humidity, and it will be more difficult to survive in an environment above 37℃; when the temperature reaches above 56℃, it only takes 30 minutes for the new coronavirus to lose its activity. 2. Air circulation: The main ways of transmission of the new coronavirus are respiratory and close contact transmission. In confined or unventilated environments, there may also be a risk of aerosol transmission, so it is more important to strengthen protection in confined spaces. It can be seen that the survival time of the new coronavirus is related to a number of factors, and one should try not to stay in confined spaces or crowded places for too long, etc.