• Used with 3M Filters and Cartridges.
• Surgical Grade Silicone construction for maximum comfort and durability & helps reduce ring around the mouth.
• 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.
• Center adapter with Cool Flow Technology.
• NIOSH Approved.