3MSBPK-HD - 3M Speedglas Adflo Heavy Duty Backpack Harness

Industrial Ergonomics and Durability

The 3M Speedglas Heavy Duty Back Pack (BPK-HD) is a specialized accessory designed to enhance the functionality and comfort of the 3M Adflo Powered Air Purifying Respirator (PAPR) system. In industrial environments where welders are required to wear respiratory protection for extended periods, the weight of the blower unit on a standard belt can lead to lower back fatigue and discomfort. This heavy-duty backpack addresses that challenge by redistributing the weight of the Adflo unit across the operator's shoulders and upper back, mimicking the ergonomic principles of high-end hiking gear.

Constructed from robust, heavy-duty materials, the BPK-HD is engineered to withstand the rigors of harsh welding environments, including exposure to sparks, spatter, and abrasion. It securely houses the Adflo blower unit, keeping it protected while ensuring the air intake remains unobstructed. The harness system is fully adjustable, allowing it to fit a wide range of body types over heavy welding jackets and leathers. By improving the ergonomic profile of the PAPR system, this accessory contributes to higher worker compliance and productivity in demanding fabrication sectors.

Key Industrial Features:

• Weight Distribution: Shifts load from the lumbar region to the thoracic region, reducing musculoskeletal strain.


• Rugged Construction: Built with durable fabrics capable of surviving industrial wear and tear.


• Secure Mounting: specifically molded to hold the Adflo unit firmly in place during movement.