Protects against fine dust, oil & water based mist. Stitched adjustable double elastic. FFP3 Level Protection. Elastic Sewed Outside Filter Area-No Leakage, No Puncture on Filter. Aluminium Clip For Snug Fit. Low Profile Design- Fitting Wide Range Of Face Contours. Latex Free Knitted Textile Elastic- Long Life, Skin Friendly, Does not Deform in High Temperature. Unique Adjustable Beads- Gives Snug Fit Yet Relieves Strap Pressure. One Way Exhalation Vent Valve- Provides Breathing Comfort, Promotes Easy Communication, Butterfly Vent Valve. Comfort Fold Flat Style, light weight, and large surface area. Offers high protection and high comfort levels. Light weight provides greater work comfort, suits longer duration of wear. Modern ultrasonic welding technology forms composite filter without needle holes. High technology filter media with micro fine fibers and electro static charge. Outer cover web sheds minimum lint. Inner layer soft and low lint for skin comfort. Sewn does not snap / break, no metal fasteners. Braided elastic, high skin comfort while in use in tough conditions.