Mask disinfection reuse only applies to two kinds of masks: gauze masks and bowl-shaped masks. 1, cleaning, gauze masks can be washed with warm water and soap gently rubbed, pay attention not to rub hard, otherwise it will make the gauze gap too large, thus losing the role of preventing droplets from entering. Bowl-shaped masks can be gently brushed with a soft brush dipped in detergent and washed with clean water. 2, disinfection, the cleaned mask will be placed in a 2% solution of peroxyacetic acid for 30 minutes, or boiled in boiling water for 20 minutes, as well as steamed in a steamer for 15 minutes. 3, drying for next use. In addition, the rest of the masks such as disposable masks and N95 masks are not suitable for re-use after disinfection, and alcohol does not disinfect them, but will affect their filtration effect, and for any masks try not to reuse them, do not try to disinfect the masks in any way. If you have to reuse them, place them flat in a disposable sealed bag, do not reuse them more than 3 times, and change them immediately if they are in contact with more people.