1, Green Shield: Green Shield has the patent authorization of domestic PM2.5 mask, and its patented PM2.5 technology can prevent particles with a particle size less than or equal to 2.5 microns. At present, there are two kinds of green shield masks for adults and children, which can provide healthy and all-round outdoor protection for family members.
2.Steady: Steady has a replaceable filter mask and is the representative of the new national standard mask.
3. Chaomei: Its products include industrial occupational protective masks, medical protective masks and civilian PM2.5 protective masks, all of which have passed the national standard certification.
4.Siwo: the mask material is imported from Britain and the quality is very good. Of course, the price is not cheap.
5, Shimeijia: Shimeijia masks are of good quality, independently packaged and very hygienic.
N95 mask introduction:
N95 mask is one of nine kinds of particulate matter protective masks certified by NIOSH (National Institute of Occupational Safety and Health).
N95 is not a specific product name. As long as it meets the N95 standard and has passed the NIOSH evaluation, it can be called N95 mask with an aerodynamic diameter of 0.075? m 0.020？ The filtration efficiency of M particles is above 95%.
Baidu Encyclopedia -N95 Mask