Engineered to promote easier breathing: the NIOSH approved DF300 Series Flatfold Disposable Respirators are made with a multilayered absorption media that repels moisture and features a smooth inner lining for added comfort. Features and Benefits Designed to fit all faces comfortably: and accommodate the user’s facial movements Multilayered absorption media with a smooth inner lining for added comfort Latex-free woven head straps are welded for a secure fit Concealed: adjustable nose clip and soft foam nose cushion provide a custom secure seal Humidity and moisture-resistant filter media that repels moisture for a longer-lasting respirator Reliable: durable design that lasts throughout the workday