Moldex AirWave N95 Small Particulate Disposable Regulator With Dura-Mesh Shell has contour shaped with soft foam nose cushion for comfort. It includes exclusive easy breathing wave design that offers less resistance and less exhale resistance than the leading valve respirators. It features Softspun lining for increased comfort and durability. Respirator is 100% PVC free that meets heat and flame resistance in accordance with ANSI ISEA 110-2003 Section 7.11.1 and ideal where unvalved respirators are preferred. It is less cost than valved respirators and is sold as 10 per box.