- 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