KN95 mask FDA , CE ( SGS EN149 2001+A1 2009 ) , GB2626-2019 certificated Delivery: FOB or CIF payment terms: LC Or T/T KN95 Face Mask Material: 5-Layers 1.50g SSS Rating non-woven 2.99% Melt-Blown Filter 3.98% Melt-Blown Filter 4.25g SSS Rating non-woven 5.25g SSS Rating non-woven comfortable for wearing (gentle on skin, soft, breathable) Anti-dust Mask KN95 provides the effect of filtering 95% of particles with a mass average diameter of 0.3 micrometers. BFE , PFE �£?? 95% Packed individually One box has 30 Big box 32 boxes 54*45.5*52