Medical 75% alcohol and 84 disinfectant, both can play a good disinfection and sterilization effect. Alcohol can cause some fires, so you must pay attention to safety when applying it, avoiding fire sources, and pay attention to surrounding safety when spraying alcohol. 84 disinfectant also needs to pay attention to regular window opening and ventilation when disinfecting, because 84 disinfectant can have certain damage to skin mucous membranes, so you also need to pay attention when applying it, and try to put it in a place where children cannot touch it. If alcohol and 84 disinfectant inadvertently enter the mucous membranes of the eyes, you need to flush with water a lot, and if necessary, you need to go to the eye for further examination and treatment.