Breathes easier than a valve respirator. Exclusive wave design has less resistance and better breathability. Breathes like it has a valve, but without one. Features the SmartStrap® which is adjustable and hangable so mask hangs from the neck when not in use, avoiding unnecessary disposal for increased cost savings. Exclusive Dura-Mesh® shell resists collapse in heat and humidity and keeps mask cleaner-looking longer. Unique FlexFit® design moves with your mouth for comfort all day long. Pinch-free molded nosebridge with soft foam nose cushion and SoftSpun® lining for optimal comfort. Metal free. Compliance and cost savings just got easier. Made in USA.