Stanley Paint Spray & Pesticide OV/R95 Respirator Mask (RST-64027) Latex-free, soft, non-allergenic elastomer and silicone blend for snug on-the-job protection Contoured sealing flange helps eliminate pressure points on face for comfortable all-day wear Strategically engineered exhalation valve placement allows more breath to be exhaled faster, making the mask more comfortable and cooler to wear Cartridges and filters are replaceable so facepiece can be re-used NIOSH-approved OV/R95 protection for oil and non-oil solid and liquid particulates (max 8-hours when used for oil mists)