75% alcohol can be sprayed on the bed for disinfection, but the amount of spray should be appropriate, do not spray too much, and open the window after spraying to ventilate. In addition, 75% alcohol can also be wiped on the surface of objects, skin surfaces, and can be soaked in some plastic products to destroy bacteria and fungi, but do not wipe mucous membranes and large wound disinfection. Do not use too high a concentration of alcohol to wipe the skin or object surface, because too high a concentration will form a protective film on the surface of the bacteria and it is difficult to achieve the effect of killing bacteria. Do not disinfect with 75% alcohol for a long time, because prolonged disinfection may cause the bacteria to develop resistance to the effect of killing bacteria. You can also use iodophor to wipe the surface of the object or wipe the skin surface to disinfect the effect.