How should the user distinguish between the inside and outside of a surgical face mask

Dust mask cleaning method

1.Clean

First, gently rub the gauze face mask with warm water and soap. The bowl-shaped mask can also be gently cleaned with a soft brush dipped in detergent, and then washed with water. Warm reminder, try not to rub hard, because if the warp and weft of the gauze is too large, it will lose the function of preventing droplets.

2. Disinfection

Put the cleaned face mask in a 2% peroxyacetic acid aqueous solution for 30 minutes, cook it in boiling water for 20 minutes, or steam it in a steamer for 15 minutes, and then air dry for later use. This type of method is mainly used for gauze masks and bowl masks.

3. Check

Before applying again, you should carefully check whether the disposable masks and masks are still intact. For gauze masks and masks, you can use the light transmission inspection method, that is, take care of them in front of the lamp and see if there are obvious light spots. Whether the transmittance at the edge is the same, if in doubt, replace it with a new one.

Regardless, masks usually need to be renewed after cleaning 3 to 7 times, and masks of particularly good quality can be cleaned 10 times. Activated carbon filter masks need to pay attention to changing the activated carbon interlayer from time to time. If the activated carbon interlayer cannot be replaced, it must be replaced after 7 to 14 days. This type of mask cannot be reused after cleaning.