The outer layer of the mask often accumulates a lot of dirt, bacteria and other dirt in the outside air, and the inner layer obstruct the exhaled bacteria and saliva. Therefore, the two sides can not be used alternately. Otherwise, the contaminated dirt from the outer layer will be inhaled on the face when it is directly attached to the face, and it will become the source of infection. When the mask is not worn, put it in a clean envelope and fold it close to the nose. Don't put it in your pocket or hang it on your neck.
If the respirator is exhaled by heat or saliva, the effect of blocking the bacteria will be greatly reduced. Therefore, it is better to prepare a few masks for replacement at ordinary times, so that they should be washed once a day. Wash with boiling water for 5 minutes.
The mask should be cleaned and sterilized every day, whether it is gauze mask or air mask can be sterilized by heating. The specific practice is:
1. cleaning. 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 clean water. Please note that do not rub hard, because if the gauze gap between the latitude and longitude is too large, it will lose the role of anti blocking droplets.
2. disinfection. Wash the masks in 2% Peracetic Acid Solution for 30 minutes or boil in boiling water for 20 minutes or steam in a steamer for 15 minutes, then dry and dry. This method is suitable for gauze masks and bowl shaped masks.
3. check. Before reusing, you should carefully check the mask and mask is still intact, the gauze mask and mask can take a light inspection method, that is, take the light before taking care of, see if there is no obvious light point, the middle part and the edge part of the light rate is not consistent, if there is a question to change the new. In any case, masks and masks are usually updated after cleaning for 3 to 7 times, and the respirator with good quality can be cleaned 10 times. Activated carbon adsorbent mask should pay attention to regular replacement of activated carbon interlayer. If activated carbon interlayer is not replaceable, it will be replaced after 7 to 14 days, and this kind of mask can not be reused after cleaning.