Description The BPK-HD back pack, enables a 3M PAPR to be worn on the BPK-HD backpack. This configuration allows the PAPR to be worn on the wearer's back rather than on a belt at the waist. The BPK-HD is optimized for Adflo and welding application, but may be used for selected additional 3M PAPR e.g. TR-series and heavy duty industry. BPK-HD Back Pack Harness optimized for welding environment Back Pack designed for holding 3M Adflo and 3M Versaflo PAPR's Designed for comfort Fits a wide variety of body sizes Made for heavy duty industries Flame retardant harness designed for Welding environment withstanding spatter and sparks Ventilated design against back Shoulder Harnesses adjustable position, length, width and a chest strap for extra tight fit well balanced on the back Designed to be perceived as balanced when carried Carry / Hang Handle when stored in a dry and clean area Attachment Plate Dimensions: 390mm x 220m