The 3M™ Speedglas™ Self-Adjusting Breathing Tube helps offer an extra level of personalization to the 3M™ Adflo™ Powered Air Purifying Respirator. As the extended version of the standard 3M™ Speedglas™ Self-Adjusting Breathing Tube (with an approximate range of 60 to 115 cm), this tube is designed for welders in need of a longer alternative. Customize your kit with the 3M™ Speedglas™ Self-Adjusting Breathing Tube.For tall welders, there's no better respiratory accessory than the 3M Speedglas Self-Adjusting Breathing Tube. Help unlock more movement freedom by equipping this longer breathing tube variant. By utilizing a tough polyurethane, the 3M Speedglas Self-Adjusting Breathing Tube is the perfect balance of precision performance and rugged construction use it today.