3M 8511 Particulate N95 Respirator MASK FILTER Valve CARTON 10 Fire Smoke DUST
3M N95 Particulate Respirator W/Exhalation Valve, 3M# 8511, Box of 10. 3M Cool Flow Valve. The 3M 8511 N95 Masks offer comfortable extended wear in dusty environments, the particulate respirator is durable and has no spare parts to clean. 3M 8511 masks feature an advanced electret media and the 3M Cool Flow Exhalation Valve to