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How often do masks need to be replaced?
2021-08-23For any type of mask, the protective effect is time-sensitive and must be replaced regularly. It is recommended to replace the mask every 2 to 4 hours...
More>>When should I wear a mask?
2021-08-231. Hotels (hotels), inns, guest houses, restaurants, cafes, bars, tea houses;2. Public bath, barber shop, beauty shop;3. Theater, karaoke hall, video ...
More>>Regarding mask knowledge, you should pay attention to these points
2021-08-23At present, the masks you can see on the market are mainly: the highest protective level medical protective masks (such as N95), medical surgical mask...
More>>How to keep and clean the mask?
2021-08-23The masks worn by ordinary residents can be used repeatedly. Wash your hands according to the rules before wearing the mask, and avoid touching the in...
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