... Carbon Face Mask 1.Odorless, fiberglass-free,low breath resistance 2.Used in factories,cleaning roomes,gardens. Active Carbon Face ... Mask1. Odorless, fiberglass-free, low breath resistance.2. It ... 100PCS/inner boxOuter packing: : 1000PCS/CTNFeatures: 1. Odorless, fiberglass-free, low breath resistance, Ventilate, soft, nontoxic fabric.2. ...