Descripton: Conforms to American NELSON N95 test standards. Mini-fiber high electrostatic filter, filtration efficiency of dust & powder is over 95%. Repel continually contamination of dangerous blood and saliva continually. Inner cover is well sweat-absorbed, while outer cover is water resistant. polypropylene cloth, low breathing resistance and high filtration efficiency. Specification: Ear-Loop Type, Ply: 1ply, 2-Ply or 3 Ply Detailed Weight: 1 Ply:38g/m2, 2Ply:25g/m2+18g/m2; 3Ply:25g/m2+20g/m2+16g/m2; Size: 18x9cm Color: White, Green,Blue, Red, Pink, Yellow, etc. Packing: 50Pcs/Box 40Boxes/Carton |