Material: Non-woven polypropylene

Conforms to american nelson n95 test standards.

Filtration efficiency of dust and powder is over 95%.

Type: Ear-Loop and With Tie

Ply: 1ply, 2ply or 3ply

Detailed Weight: 1Ply-38g/m2 , 2Ply-25g/m2 +18g/m2 ,3Ply-25G/m2 , +20g/m2 +18g/m2

Size: 18x9cm

Color: White, Green, Blue, Pink etc

Packing: 50pcs/Box, 40boxes/ctn

Carton Size: 42x39x37cm