SAFETY WORKS N95 Harmful Dust Disposable RespiratorsFeatures a closed cell foam nose cushion that contours to the facial dimensions of a wide population of users, improving comfort and fit Helps protect people from exposures to harmful dusts The masks dual elastic straps help keep it positioned properly on the face This respirator is approved by NIOSH as an N95 respirator, meeting the NIOSH 42 CFR 84 respirator certification requirements