95% alcohol cannot be used for disinfection. The use of 95% alcohol can form a protective film on the surface of the pathogen, preventing the disinfectant from entering the pathogen and making it difficult to kill it completely. And it will also have an irritating effect on the skin and mucous membranes. Clinically used 75% alcohol can disinfect and sterilize, its mechanism is because alcohol has a strong water-absorbing ability, it can make the pathogen protein dehydration, denaturation, precipitation, so that the bacteria and viruses lose vitality, so as to achieve the purpose of disinfection and sterilization. It should be noted that the use of alcohol disinfection, you need to formulate the concentration according to the requirements, to ensure that in 75%, the concentration is too high or too low will affect the disinfection effect effect. Pay attention to the correct method of use, take wipe on the surface of the object to disinfect, avoid spraying directly on the surface of the clothing, to avoid causing fire phenomenon.