Supply: 2 ply or 3 ply Non-woven facemask, 4 ply activated carbon facemask Supply: 2 ply or 3 ply Non-woven mask ... , 4 ply activated carbon facemask*Size: 17.5*9.5 CM/17.5*9.0CM ... , w/ inner ear-loop procedure facemask*Colour: Green, Blue, White, Pink*Packaging:50pcs per inner box ...