The 3M™ Speedglas™ Heavy-Duty Back Pack, BPK-HD, is an ergonomic and flame-resistant carrying system designed to relocate PAPR units—such as the 3M™ Adflo™ and select 3M™ Versaflo™ models—from the waist to the back. This configuration is especially useful for welders or industrial professionals already wearing tool belts, fall protection, or utility harnesses. The pack's ventilated contact surface and wide adjustability make it ideal for extended wear in rugged environments where mobility, comfort, and safety are critical.

Key Features

Welding-Optimized Design: Flame-resistant harness withstands sparks and spatter in harsh welding environments.
Enhanced Comfort: Balanced weight distribution with padded, adjustable shoulder straps and chest support.
Full Adjustability: Customizable in width, height, and length to fit a wide range of body sizes.
Ventilated Back Panel: Minimizes heat buildup during long wear periods.
Carry and Hang Handle: Integrated top handle for convenient storage and transport.
Secure Attachment: Includes harness and 390 mm x 220 mm attachment plate for reliable PAPR mounting.

Intended Use

The BPK-HD backpack is purpose-built for professional welders and industrial users who operate in high-heat, confined, or tool-heavy work zones. It provides a practical and comfortable solution for those needing to wear a PAPR while keeping the waist area free for other PPE or tools.

Welders in fabrication and shipbuilding
Construction professionals using PAPR and fall protection
Industrial maintenance in confined or elevated spaces
Mining and energy workers needing robust respiratory support
Oil and gas technicians with harnessed mobility requirements

Product Specifications

Manufacturer Code: BPK-HD
3M ID / SAP ID : 7100282441 /
Legacy SKU: UU011985932
UPC: 04064035055950
Product Type: Backpack Harness
Mounting Type: Back-mounted
Compatible With: 3M™ Adflo™ PAPR, 3M™ Versaflo™ TR-300+, TR-600, TR-800 (select models)
Material: Flame-resistant materials, ventilated support

Certifications and Standards

PAPR Compatibility Verified: Approved for use with 3M™ Adflo™ and selected Versaflo™ PAPR systems
Welding-Ready Construction: Designed to withstand typical hazards found in MIG, TIG, plasma, and stick welding
Ergonomic & PPE-Compatible: Designed to integrate with standard welding PPE, fall arrest systems, and protective gear
Attachment Plate Dimensions: 390 mm x 220 mm
Color: Black
Includes: Harness and attachment plate
Packaging Format: 3 units per case