active carton face mask, has big breathing space, huge surface area ... activated charcoal gives it a large adsorption capability 4-ply active carbon face mask1. Appearance: clean and tidy, good shape, ... 3. Size: 17.5x9.5cm (length x width)After user wear face mask, the face mask can cover nose, mouth and ... 40boxes/ctnwe also can pack it acorrding to customers' requirements active carbon face mask