The survival time of the new coronavirus on masks is about 2 days, and in a humid environment it can reach about 5 days, or longer if the temperature is suitable. The new coronavirus survives for a short time in a dry environment, and is characterized by its fear of heat and cold, and is easily inactivated at temperatures above 56°C. However, the mask should not be used repeatedly, and should be applied for 6 hours. However, the mask should not be used repeatedly and should be replaced within 6 hours or so to maximize the health and safety of people. The new coronavirus is highly contagious, in the daily application of masks, to stay away from dense crowds, and suspected patients to maintain a distance of more than 1 meter, can effectively prevent the virus carried in the droplets lead to people being infected. Even if you wear a mask, do not go to a confined space with many people to prevent aerosol infection.