4700N100 M/L Moldex AirWave N100 Disposable Respirator withValve and Smart Strap, 5/bx, 6 bx/cs.Exclusive easy-breathing wave design Less resistance,better breathability, larger surface area of the wavedesign means more airflow. More air and more comfortmeans more wear and compliance. FlexFit design moveseasily with your face and stays in place. Pinch-freemolded nose bridge. Soft foam nose cushion or full faceflange. Softspun lining for increased comfortDura-Mesh shell resists collapsing in heat andhumidity. Meets heat and flame resistance in accordancewith ANSI/ISEA 110-2003 Section 7.11.1. Soft clothSmartStrap allows you to adjust for a custom fit.Cool and comfortable SmartStrap allows respirator tohang around the neck when not in use. Longer use meansless waste. Metal free.