Nice purchase Four Layer Disposable Charcoal Activated Carbon Mask Filter Antivirus Bacteria - 100 Pieces (Each Piece Is Individually Packed) Disposable face masks, 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, QC SEALED Box, Mini bag of DESICCANT protected. Packaged contents: 100PCS+ English Manual + Mini bag of DESICCANT