Enhance your respiratory protection with the 3M™ Versaflo™ Breathing Tube BT-20L. This essential accessory quickly attaches between your headgear and PAPR air filter unit, ensuring a secure and reliable connection. Certified NIOSH approved when used as part of a complete system, this replacement part is designed for optimal performance. The 3M™ Powered & Supplied Air Breathing Tubes are integral components of a NIOSH-approved respiratory system, expertly connecting the air source with the headtop. Experience clean air delivery with unrestricted airflow, thanks to the compatibility of these tubes with select 3M™ Respiratory Headtops and Air Delivery Units. Invest in your safety and comfort with this high-quality breathing tube from 3M.