... -woven fabrics3, BFE95%, BFE99% filter paper and Normal filter paper4, Standard mask size: 17.5cm*9.5cm ... 2000PCS/CTN 100% BRAND NEW Surgical Face Mask, with a filter encased in 3 layers of non-woven ... Item Details: 1, Anti-Flu, with a filter encased in 3 layers of non-woven fabrics2, ... CTN, Package Includes: 50pcs Medical Ear-loop Respirator Face Surgical Mask We believe: Your success is our success, ...