Honeywell North 7700 Series Half Mask Silicone Respirator with Back Pack Adapter, Large

The BP1000 provides the benefit of locating cartridges and filters on the users back and out of the work zone. This is especially desirable in environments with high heat or sparks, such as welding, coke and smelting operations. The BP1000 series has the additional advantages of easily adapting to the North 5500, 7700, 5400 and 7600 series air-purifying facepieces. Simply attach the backpack to the facepiece cartridge connectors, then fasten the appropriate cartridges or filters to the backpack. No modifications, tools or extra components are needed.