Respirators, Air-Purifying Powered: Mask Type - PAPR Full Face Mask Assembly; Cartridge - OptiFilter XL; Protection - Particulate - HE Particulate Aerosols; Size - Medium; Headgear Style - Rubber Harness; Motor Blower - Mask Mounted; Material - Black Silicone; Listings - NIOSH; Kit Contents - NiMH Battery, Battery Charger, Belt; Manufacturer Series - OptimAir Advantage 3000