More Air. More Wear. Easier breathing and more comfort are what you get when you wear an AirWave®respirator. The larger surface area of the patented wave design means more air flows in and out of the mask. More Comfort. More Use. More Durability. The unique FlexFit®design moves with your face for comfort all day long. It has a soft foam face cushion for no pressure points. The exclusive cool and comfortable SmartStrap allows you to adjust the mask for a custom fit. More comfort means more compliance. The SmartStrap also allows the respirator to hang around the neck when not in use. The Dura-Mesh®shell prevents collapsing from heat and humidity so your mask lasts longer. Longer use means less waste and lower costs. Plus it's also metal free. 4700 Series With N100 Protection. 99.97% efficient against non-oil based particulates, for environments where an OSHA substance specific standard applies (lead, cadmium, inorganic arsenic, MDA), as well as, pharmaceutical manufacturing, battery manufacturing, welding, cutting and metal pouring. Use Against: Particulate aerosols free of oil. Features: Exclusive easy-breathing wave design, Less resistance, better breathability, 99.97% efficient against non-oil based particulates, FlexFit design moves easily with your face and stays in place, Dura-Mesh® shell resists collapsing in heat and humidity, Ventex® valve lets the hot air out faster so workers breathe easier and stay cooler, Foam face cushion for added comfort and no pressure points, Softspun® lining for increased comfort and durability, Meets heat and flame resistance in accordance with ANSI/ISEA 110-2003 Section 7.11.1, and Metal-free. Sold 5/Bx