Easily connect your headgear to your PAPR air filter unit with the 3M™ Versaflo™ Length Adjusting Breathing Tube BT-30. This NIOSH-approved replacement part is designed to be used as part of a complete respiratory system, ensuring reliable, unrestricted airflow. Compatible with select 3M™ Respiratory Headtops and Air Delivery Units, this breathing tube is essential for maintaining the integrity and performance of your 3M™ Powered & Supplied Air Breathing System.