2840 Series R95 Particulate Respirators, Half Facepiece, M L ORS NASCO resists rust and corrosion Molded rubber resists rust and corrosion Molded rubber connector covers have good resistance to heat Solid steel construction Handle for comfort Ground tips Black oxide finish to reduce corrosion allows mask to hang down around the user's neck when not in use Ventex® valve lets the hot air out faster so workers breathe easier and stay cooler R95 protection against both oil and non oil based particulate aerosols Added carbon layer helps filter out nuisance levels of ozone organic vapors Soft foam nose cushion for added comfort and no pressure points Exclusive HandyStrap® with buckle