Industrial alcohol can not be used for indoor disinfection, because the purity of industrial alcohol is not very suitable for human disinfection, some contain impurities, which will have some formaldehyde and other irritants to produce adverse factors for the human body. Usually indoor are 75% concentration of alcohol used as a body disinfection, alcohol disinfection is also used 95% anhydrous ethanol to than the normal salt water, available a 95% alcohol plus three salt water, into 75% alcohol. If there is 75% alcohol available on the market, you can use the ready-made alcohol for disinfection, because only 75% alcohol concentration can play an effective killing effect on the virus. And with indoor disinfection of alcohol should not be sprayed with large doses of clothing, long time after spraying clothing, even if the alcohol evaporates, but the alcohol in the clothing will remain for a long time, easy to cause a fire, so spray alcohol is mainly disinfected commonly used to contact the door handle, desktop, palms, hands, these long-term exposure to the air body parts and commonly used items with 75% concentration of alcohol to disinfect.