Reusable FFP Mask with a very low breathing resistance. AirWave Pleated Filter for comfortable breathing and fatigue-free work. Longer use time, less consumption. ProValve: Built-in valve, reduces condensation from exhaled air. Comfortable full-face seal made of washable TPE material which is gentle on the skin. DuraMesh: strong and durable structure, keeps the mask in shape. ActivForm: no nose clip needed. Length-adjustable loop strap with clip for quick, simple and safe on and off. Tested and certified to EN 149:2001+A1:2009.