84 disinfectant is a very commonly used disinfectant, and the new coronavirus pneumonia treatment guidelines clearly indicate that chlorine-containing disinfectants can play a preventive and control role. In the use of 84 disinfectant should be careful not to 84 disinfectant and other disinfectants mixed use, when and other disinfectants used together, generally does not increase the additional disinfection effect, and may even have a certain chemical reaction, resulting in the production of toxic and harmful gases, which may cause damage to the body. In addition, the use of 84 disinfectant also need to pay attention to the following matters: 1, the 84 disinfectant in accordance with a certain concentration ratio and diluted with water, wipe the corresponding object surface can be; 2, the use of 84 disinfectant to be used separately; 3, after disinfection should pay attention to the appropriate ventilation of open windows. Source: Dr. Yurai