During the epidemic, people will use various disinfectants. Disinfectant solutions contain a large number of chemical components, which can be harmful to health if you overuse disinfectant supplies and may irritate the airways, causing symptoms such as coughing and breathing difficulties, and also weaken the body’s resistance. In particular, disinfectant solutions containing chlorine, while sterilizing, will remain in the air without evaporating and contaminate water sources, which can cause cancer, malformation and genetic mutation in serious cases. Therefore, pay attention to the use of disinfectants to dilute, wear gloves and masks, and after cleaning the surrounding environment, pay attention to open the windows for ventilation.