Is it true that there is no n95 on the mask?

There is no N95 word on the outer package of N95 mask, which may be counterfeit.

As long as it is n95, the words n95 must be printed on the outer packaging of the mask. The two indexes of N95 mask's protective performance mainly depend on the level of filtration effect of meltblown cloth (masks made of meltblown cloth above 95 are considered as grade 95). The second point is the overall fit, and air leakage everywhere will definitely have a bad protective effect.

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%.

N95 mask is one of nine kinds of anti-particle masks certified by NIOSH. "n" means oil resistance. "95" means that when exposed to a specific number of special test particles, the particle concentration inside the mask is lower than that outside the mask by more than 95%.

Reference to the above content: Baidu Encyclopedia -n95