NIOSH approved for at least 95 percent filtration efficiency against certain non-oil based particles Braided headbands with two-strap design and staple free dual point attachment helps provide a comfortable and secure seal Adjustable noseclip helps provide a custom and secure seal Lightweight construction promotes greater worker acceptance and may help increase wear time Advanced Electret Media is designed for ease of breathing Specifications Cartridge or Filter Included - Yes Exhalation Valve - No Gas & Vapor Protection Type - Particulates Color - White Class - Comfort Faceseal/Nosefoam - Nosefoam