BEST4UBUY Disposable Four Layer Industry Charcoal Activated Carbon Mask Filter Antivirus Bacteria - 50 Pieces (Each Piece Is Individually Packed) Brand: Nice purchase Anti-dust anti-bacterial Odorless For work or home use Demension: 17*9.5cm(6.7*3.7inch), Four Filter Layers, Ear-loop wearing type, A metal piece inside to grip the nose Each Piece in Health INDIVIDUAL wrapped, 50PCS/BOX, QC SEALED Box, Mini bag of DESICCANT protected. Packaged contents: One box of mask(50PCS/BOX) + Mini bag of DESICCANT + English Manual + 1 piece extra bonus(13*13CM cleaning cloth)