Use with 3M™ Filters 2000 Series, 3M™ Filter 7093, P100, 3M™ Cartridges 6000 Series, or 3M™ Dual Airline Systems against a variety of gases, vapors and particulate hazards according to NIOSH approvals. It's cost- effective and can be washed and reused many times. The 6000 is lightweight with easy to adjust headstraps and a low-profile design for better visibility allows safety glasses to be worn . Very easy to use-no retainer or extra parts needed to attach the filters/cartridges to the facepiece. These 3M™ Filters respirators are among the lightest available, and are remarkibly comfortable. The swept back design of the cartridges improves balance and visibility. Reusable — just dispose of the cartridges/filters when used to capacity. Can be disassembled, cleaned and reused.