3M #8511 N95 respirator for use when grinding, bagging, sanding, sweeping or in other dusty/hot operations. The #8511 disposable respirator has soft inner materials for additional comfort. Features include the 3M Cool Flow Valve to reduce heat and adjustable nose clip. NIOSH approved N95 respirator is at least 95% efficient in non-oily environments. 10 disposable respirators per pkg.