At present, the new coronavirus can be inactivated by chlorinated disinfectants and 75% alcohol, but also by ether, peroxyacetic acid, chloroform or water at 56°C for 30 minutes. The main chlorinated disinfectants are 84 disinfectant, Kinzin, etc. Currently, the commercially available disinfectant is 84 disinfectant, which has a clear difference from alcohol. Chlorine-containing disinfectants are irritating and pathogenic to skin, digestive tract mucosa and respiratory tract mucosa, and may cause reactions such as poisoning by chlorine gas. Chlorine-containing disinfectants can effectively inactivate the new coronavirus and can be sprayed on door handles or items for disinfection, with attention to ventilation. Alcohol, mainly 75% alcohol, can be used to disinfect skin mucous membranes, such as hand sanitizer with alcohol content or alcohol wipes to disinfect hands and skin mucous membranes, but care should be taken to avoid the risk of fire and avoid contact with fire sources.