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