Filter Media, electrostatically charged microfibers make breathing easier and cooler. Provides protection from solids and particulate aerosols free of oil and is ideal for dusty environments. Respirators meet NIOSH 42 CFR 84 standards and are recommended for use up to 10X the Permissible Exposure Limit (PEL) or the appropriate standard. If respirator becomes damaged, soiled, or if breathing becomes difficult, leave the contaminated area and dispose of the respirator. For use in bagging, cleaning screen, spraying aerosols, drilling, grinding, machining, sanding, sawing, processing of minerals, and grain handling. It offers comfortable braided headbands and staple-free attachment.