1. Cleaning. First use warm water and soap gently rub gauze mask, bowl-shaped mask can be dipped in a soft brush with detergent gently brush clean, and then wash clean with water.

Please note, do not rub hard, because if the gauze gap is too large to lose the role of anti-blocking droplets. 

2. Disinfection. Soak the clean mask in 2% peracetic acid solution for 30 minutes or simmer in boiling water for 20 minutes or steam for 15 minutes in the steamer and dry for a spare.This method is suitable for gauze masks and bowl-shaped masks. 

3. Check. Before use, you should carefully check whether the mask and mask is still intact, for gauze masks and masks can be used to light transmittance inspection, that is, to take care of the lamp, to see if there are obvious points of light, the middle part and the edge portion of the transmittance is not the same, if there is doubt to replace the new. In any case, masks and masks are usually updated after cleaning 3 to 7 times, and the mask with a particularly good quality can be cleaned 10 times.

Activated carbon adsorption mask to pay attention to regular replacement of activated carbon sandwich, if the activated carbon interlayer is not replaceable, used 7-14 days to replace, this mask is not washable and then reused.