Rumor identification: Use alcohol disinfection do not spray a large area. Rumor Analysis: 1. The minimum ignition energy of alcohol is only 0.63 mJ, which can be ignited by electrostatic discharge, electric spark, and open flame of the human body, and alcohol is easily volatile and can easily form combustible vapor in the air, which may explode when encountering an ignition source. Therefore, although alcohol is a good disinfectant, it is only suitable for small skin wipes and should not be sprayed over a large area. It is also not recommended to spray alcohol on clothing, because the general chemical fiber clothing in the process of wearing easy to generate static electricity, but also easy to cause danger. 2, the hospital disinfection of large areas are generally used with chlorine-containing disinfectant solution, not medical alcohol. Because the active ingredient of medical alcohol is ethanol, which is a class A fire hazard, the concentration of ethanol in the air reaches 3%, it is easy to cause a fire. It is also not recommended to use alcohol for disinfection of the environment, such as hallways, conference rooms, large offices, etc. Special Note: When using alcohol for disinfection, ensure ventilation and keep away from hot objects and open flames. In the use of high concentrations of alcohol, do not immediately after cooking, smoking, using electric mosquito liquid, electric mosquito racket and other acts, so as not to cause the burning of alcohol in the case of high temperature.