Precautions for the use of medical alcohol: 1, because of the low ignition point of alcohol, fire, heat, easy to spontaneous combustion, so be sure to place in a cool, dry, light location, and do not spray directly in the air to use. 2, you can use medical alcohol to smear hands for hand disinfection, but also can be a small area of the use of medical alcohol to wipe disinfection, such as cell phones and door handles, you can also disinfect the electrical appliances, but remember! Be sure to unplug the power supply. 3, you can use chlorine disinfectant in normal life, the air or items to spray disinfection, the general role of 30 minutes can be achieved effectively kill the role of the virus.