KN95 Protective Face Mask - Black has 5 Ply filter. KN95 Face Mask - Black is for filtering particulate, viruses, and microbes. Meets the GB 2626-2019...
White KN95 mask is a particulate-filtering facepiece respirator that meets the Chinese Executive Standard of GB2626-2006 classification. This states a filtration efficiency ≥95% of airborne...