1. provision of water, breathable 2. non-toxic, non-irritating 3. antimicrobial, anti-chemical... 4. type: three type Mask type Size of the maskspackagingNet WeightGross WeightCarton SizeInfant Face Mask125 x 75mm50pcs/box,40 boxes/ctn3.8kgs/ctn5.5kgs/ctn43x28x42cmChildren Face Mask145 x 90mm50pcs/box,40 boxes/ctn5kgs/ctn6.8kgs/ctn49x31.5x41.5cmAdult Face MaskTie-on175 x 95mm50pcs/box,20 boxes/ ...