4200 N95 AirWave series particulate respirators features exclusive easy-breathing wave design. Less resistance, better breathability. Less cost than valved respirators. Dura-Mesh shell resists collapsing in heat and humidity. Longer wear means less cost. Softspun® lining for increased comfort and durability. Soft foam nose cushion and contour shaped for comfort. Pinch free nose bridge. Meets heat and flame resistance in accordance with ANSI/ISEA 110-2009.