The disinfection effect is best with 75% alcohol concentration, but too low or too high concentration may affect the disinfection effect. Alcohol disinfection is recommended for cell phones, computer keyboards and other precision instruments, because other disinfectants have a certain corrosive effect, so the use of alcohol is relatively safe, and can achieve better results. When disinfecting hands, you can use alcohol disinfection, but for small babies try to avoid wiping the skin with alcohol, which may lead to alcohol poisoning of children. Alcohol itself is flammable and explosive, so it is not recommended to use large doses, such as a large amount on the ground, there will be a risk of ignition and explosion. When using alcohol, try to ensure the effect of ventilation, which is safer. Family disinfection of the ground, door handles, tables, chairs and benches may use 84 disinfectant, which may be more economical. However, 84 disinfectant also has an irritating odor, so you should also choose to use it when the ventilation is better to avoid the risk. Content source: Dr. You Lai