KN95 means that the mask provides the intended effectiveness of filtering 95 percent of particles with a mass median diameter of 0.3 micrometers. Therefore, our mask can protect you well from PM10, PM2. 5, and even smaller particles. FDA AND CE AVAILABLE KN95 MASKS Packing 1: 5 per poly bag, 4 bags per box. Box size 18*10*7.5cm (200pcs per box.) 20 boxes per carton Carton size: 57*35*38cm Gross Weight: 15kg Net Weight: 14kg
