The outer layer of the disposable mask often accumulates a lot of dust, bacteria and other dirt in the outside air, while the inner layer blocks the exhaled bacteria and saliva. Inhale the human body when it is close to the face and become a source of infection. When the mask is not worn, it should be folded and placed in a clean envelope, and the side close to the nose and nose should be folded inwards, and it should never be stuffed into the pocket or hung around the neck.

If the disposable mask is wetted by exhaled heat or saliva, its effect of blocking germs will be greatly reduced. Therefore, it is best to prepare a few more masks for replacement. You should change and wash it once a day. When washing, it should be scalded with boiling water for 5 minutes.

The specific practice of disposable mask cleaning is:

1. Cleaning. First, gently rub the gauze mask with warm water and soap. The bowl-shaped mask can be gently brushed with a soft brush dipped in detergent, and then washed with water. Please be careful not to rub hard, because if the warp and weft gap of the gauze is too large, it will lose the effect of preventing droplets.

2. Disinfect. Put the cleaned mask in a 2% peracetic acid solution for 30 minutes or boil in boiling water for 20 minutes or steam in a steamer for 15 minutes, and then dry it for use. This method is suitable for gauze masks and bowl-shaped masks.

3. Check. Before using it again, you should carefully check whether the mask and mask are still intact. For gauze masks and masks, you can take a light transmission inspection method, that is, take a look in front of the lamp to see if there are obvious light spots. Is the rate consistent? If in doubt, replace it with a new one. In any case, masks and masks are generally updated after 3 to 7 times of cleaning, and masks of particularly good quality can be cleaned 10 times. Activated carbon adsorption masks should pay attention to regularly replace the activated carbon interlayer. If the activated carbon interlayer is not replaceable, it will be replaced after 7 to 14 days. This mask cannot be cleaned and then reused.