NOS7140N95 / 7140N95 RESPIRATOR DISPOSABLE W/EXHALATION N95 Particulate Respirators Engineered to provide exceptional comfort and worker protection, these disposable N95 Particulate Respirators feature a soft cushioned nose seal for comfort, a nose clip for good fit and latex-free headstraps. Ideal for dusty applications such as grinding, sanding and sweeping, they provide protection from solids and particulate aerosols free of oil. Model 7140 features the added benefit of a built-in exhalation valve for cooler and easier breathing. NIOSH approved. Sold per box.