What Face Mask To Wear? Mask Comparison (N95,KN95, 3ply ...
Filter Level: >95% (0.3 Microns – MPPS, the most difficult particle size to capture) Standard: GB2626-2006 are called KN95; Made of high-quality materials, safe, soft and comfortable. Is this masks medical grade? These masks are non-sterile and should NOT be used for surgical procedures.