The outer layer of the air purification respirator often accumulates a lot of dust, bacteria and other dirt in the outside air, and the inner layer blocks the exhaled bacteria and saliva, so the two sides can not be used alternately, otherwise the dirt contaminated by the outer layer will be inhaled into the human body when it is directly close to the face, and become a source of infection. When not wearing the mask, should be folded into a clean envelope, and close to the nose and mouth side of the fold, do not casually stuffed in the pocket or hung around the neck.
If the air purifier is wet with exhaled hot air or saliva, its role in blocking germs will be greatly reduced. Therefore, it is best to prepare more than a few masks in order to replace them, and they should be changed once a day. Wash should be boiled for 5 minutes.
Air purification respirators should be cleaned and disinfected every day, whether it is gauze masks or air filter masks can be sterilized by heating. Specific practices are as follows:
1. Wash. First gently rub the gauze mask with warm water and soap, the bowl mask can be gently brushed with a soft brush dipped in detergent, and then clean with clean water. Please note that do not rub vigorously, because if the warp and weft gap of the gauze is too large, it will lose the role of preventing droplets.
2. Disinfection. Soak the cleaned mask in 2% peracetic acid solution for 30 minutes or boil it in boiling water for 20 minutes or steam it in a steamer for 15 minutes, then dry and set aside. This method is suitable for gauze masks and bowl masks.
3. Check. Before using again, you should carefully check whether the mask and mask are still intact, for gauze masks and masks can take light inspection method, that is, take care of the light before getting the lamp, see if there is an obvious spot, the middle part and the edge part of the light transmittance is not consistent, if there is any doubt to replace the new. In any case, masks and masks are generally updated after 3 to 7 times of cleaning, and especially good quality masks can be cleaned 10 times. Activated carbon adsorption mask should pay attention to regular replacement of activated carbon interlayer, if the activated carbon interlayer is not replaceable, after 7 to 14 days to replace, this mask can not be cleaned and reused.
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