The best time to use a disposable mask

The current international standard is to use a one-off mask for 4 to 6 hours.

 1. If used for a long time, the filter efficiency will decrease and the suction resistance will increase because of the big particles being blocked on the mask surface or the ultra-fine particles blocking the gap of the mask filter material. Second, wear disposable mask must pay attention to its use, if the method is not correct, will affect the use of the effect. The back side of the disposable mask is lighter, and the back side faces inward, meaning that the lighter side of the mask is pressed against our face. One end of the metal strip is above the mask. 3. not wear masks for too long. If you wear a mask for a long time, will make the nasal mucosa become fragile, lost the original physiological function of the nasal cavity, it can not wear a mask for a long time. Masks should only be worn in special circumstances, such as in crowded places with poor ventilation. Of course, walking in the wild, in order to resist the wind and cold, or in the environment with air pollution activities, it is necessary to wear a mask, but not too long. 4. During flu season, wear a mask when going to public places where pathogens may be abundant. Wearing a mask is only one way to prevent respiratory infections and the most important thing is to maintain good living habits. 5. Disposable masks also have certain defects. For example, this kind of mask can not be cleaned, disposable masks can not be reused, and easy to be torn, the strength of the mask is poor. In addition, not all occasions are suitable for the use of disposable masks, in the environment of greater humidity disposable masks can not be used.