Smog Mask Type Selection
1, surgical masks
Surgical masks are common in our daily to a mask, which not only had no protective effect on bacteria and viruses, the haze is no protection, it is mainly used for isolated droplet transmission.
2, plain white cotton masks
Touch your nose and mouth parts can easily be contaminated, to filter smaller particles, and has not been certified, there is no protection.
3, N95 masks
It is the World Health Organization requires the use of masks, have very good anti-haze effect, can play a role in prevention of respiratory diseases.
N95 masks for occupational respiratory protection, including some microbial particles (such as viruses, bacteria, mold, anthrax Bacillus, Mycobacterium tuberculosis, etc).