Product Name: KN95 Face Mask Color: White Number of Layer: 4 Layers Material: Non-woven Fabrics + Melt blown fabric +Electrostatic filter cotton + Nose bar + Mask band Style: Earloop Shape:Flat-fold Standard: KN95/FFP2 Particle Filteration Efficiency: â?¥95% Inhalation Resistance: â?¤350Pa Exhalation Resistance: â?¤250Pa Function: Anti-dust-smog-pollen Application : Personal respiratory protection Certificate: CE Certified / EN149:2001+A1:2009 / GB2626-2006 Packing Information: Masks Size:15cm*10.2cm Grade:KN95 Carton size:67*29.5*28.5cm Box size: 27*13*14.5cm Pacage: 50pcs/box,500pcs/carton, 4.7kg/ctn Features: High filtration efficiency and low breathing resistance Adjustable nose clip Easy To Store Due To Fold Flat design