Commonly used masks during the epidemic were disposable general surgical masks, and a mask was used continuously for no more than 6 to 8 hours. Disposable general surgical masks, the use of which lasts for 6 to 8 hours, can reduce the speed of virus droplet transmission and the amount of spray, thus reducing the chances of infection with the virus. In an epidemic situation, general medical surgical masks are generally used for 6 to 8 hours and then replaced, and should not be reused, otherwise they may not be able to play the role of protection against the spread of droplet viruses. In the use of disposable general surgical masks, when the mask appears damp, broken, odor, should be replaced in a timely manner. In order to better prevent and control the epidemic, everyone should wear a good mask when traveling, and buy masks produced by regular manufacturers, in order to protect themselves and others.