If the disposable mask is cleaned or disinfected, the protective effect will be reduced, so it is not recommended to clean and disinfect the mask. Precautions for wearing the mask are as follows:
1、 Disposable mask: it should not be cleaned and sterilized before repeated use. Because it is a disposable mask, it should be discarded after use;
2. General medical protective mask: the wearing time is not recommended to exceed 4 hours. If there is no obvious stain and damage, it can be reused, but it is not waterproof, and the protection effect will be worse after more than 4 hours;
3. Medical surgical mask: it has certain waterproof effect, so the wearing time can be a little longer. When there is no obvious stain and damage, the wearing time should not exceed 24 hours, and should be discarded after 24 hours;
4. N95 mask with exhalation valve: it can be used repeatedly without clear damage and dirt. However, when the mask is worn to contact suspected infected persons or diagnosed patients, the mask should be discarded as medical waste, and should not be discarded in the general garbage can.
When medical units wear masks, there are special medical waste treatment procedures, which can achieve good disinfection effect, including commonly used medical protective masks, which need to be treated according to professional medical waste. Because the protective effect of medical protective mask is limited by a certain time, it is not recommended to wear it for more than 24 hours. In addition, the above masks cannot be cleaned, because they are disposable masks, they should be discarded after wearing. Generally, the normal people can be discarded as domestic garbage after using the mask, but when the mask is worn in the medical institutions and contacted with suspected or diagnosed patients, it should be discarded as medical garbage, and the purpose of preventing others from being infected can be achieved by special treatment methods.