Key Features of McCons KN95 Mask: Ultra-fine filter layer effectively prevents PM2.5 particles from entering PM 2.5 filtration with an efficiency rate up to 95% Non-woven fabric for safe filtering, soft fabric, breathable, comfortable Filters out dust, bacteria, smoke & pollen 5 Layers of protection FFP2 Protection Anti-infection PFE≥95% BFE≥95%
