available 5 layer anti dust maks PM2.5 ProtectiveDHL & FEDEX Free Shipping! Fittop KN95 Mask Adult Anti-Fog Haze and Influenza KN95 Face Mas

KN95 is a five-layer protective mask, which has 2 layers of melt-blown layer, the protective effect reaches more than 95%, effective dustproof. The effect is excellent