3M Particulate Respirator 8210V, N95 Respiratory Protection (10 Each Per Box) 3M cool flow valve Adjustable nose clip Disposable respirators NIOSH approved for at least 95 percent filtration efficiency against certain non-oil based particles Adjustable nose clip helps in obtaining a secure seal 3M Cool Flow Exhalation Valve helps reduce heat build-up inside the respirator Advanced electrostatic media is designed for ease of breathing Compatible with a variety of protective eyewear and hearing protection