Kn95 and N95 masks

2020-03-31 20:41:27 32

The letters represent the blocked particles:

"N" stands for: not resistant to oil

"R" stands for: oily and non oily particles (resistant to oil)

"P" stands for: effectively block oily and non oily particles (oil proof)

Use the "n" series to prevent the spread of parvovirus

The number represents the filtering effect level:

”95 "represents that the filtration efficiency reaches 95%, which means that the particle concentration in the mask is more than 95% lower than that outside the mask when tested with 0.3 micron particles.

Besides 95, there are 90, 99, 100, etc

The higher the number, the higher the protection level;

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