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Mask standard knowledge

Source:
Date: 2017-07-06

American Standard (NIOSH Standard)

American standards divide masks into three categories:

Class N is only used to protect non-oily particles (eg N95)

R class for the limited time to protect both oily and non-oily particles (eg: R95)

P class for a long time for the simultaneous protection of oily and non-oily particles (eg: P95)

European Standard (EN Standard)

The European standard stipulates that all masks must have the ability to protect both particles:

FFP1 filtration efficiency greater than or equal to 80%

FFP2 filtration efficiency greater than or equal to 94%

FFP3 filtration efficiency greater than or equal to 97%


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