Chlorine-containing agents include 84 disinfectant solution, sodium hypochlorite, calcium hypochlorite, bleach, etc., which can kill various microorganisms including bacteria, viruses, fungi, Mycobacterium tuberculosis, etc. Chlorine-containing preparations include inorganic chlorides and organic chlorides, of which inorganic chlorides are unstable in nature and easily affected by light, heat and moisture. Organic chlorides are relatively stable, but become unstable when dissolved in water. For the new coronavirus in addition to chlorine-containing agents can kill the virus, lipid solvents such as ultraviolet light, heat sensitivity, 56°C for 30 minutes, 75% ethanol, peroxyacetic acid and chloroform can effectively kill the virus. However, chlorhexidine is not effective in killing the virus because the new coronavirus has an envelope, is often polymorphic, and has a diameter of 60-140 nm.