The production validity period of general medical surgical masks is three years, and the production validity period of medical protective masks is five years. Once the mask validity period is exceeded, the filtering efficiency and protection performance of the filter materials will be reduced. . Before using a medical mask, be sure to confirm the production date and expiration date.
2. Always wash your hands before and after wearing a medical mask
Before wearing the mask, be sure to wash your hands to avoid touching the inner surface of the mask. Try to avoid touching the mask during use to avoid reducing the protective effect. When removing the mask, try not to touch the outside of the mask to prevent bacteria from getting on your hands, and be sure to wash your hands after removing it.
3. Masks should not be worn for a long time
In order to prevent infection, some people may wear medical masks all day long, but this will make the nasal mucosa fragile, lose the original physiological function of the nasal cavity, and reduce resistance, so it may not be used in ventilated places with low population density wear a mask.
4. Medical masks are folded and stored in ziplock bags when not in use
It is not recommended to take off the mask and stuff it directly into your pocket or bag. This can easily cause secondary contamination of the medical mask. Be sure to fold it into a clean ziplock bag and fold the side that touches your nose and mouth inward.