3M BT-40 Tube Breathing Black Neoprene Rubber Heavy Duty

• Quickly allows attachment between headgear and PAPR air filter unit
• NIOSH approved when used as part of a complete system

3M™ Powered & Supplied Air Breathing Tubes are part of a NIOSH-approved respiratory system

3M™ Powered & Supplied Air Breathing Tubes connects the air source with the headtop and ensures clean air reaches the headtop reliably and with unrestricted airflow. 3M™ Powered & Supplied Air Breathing Tubes are compatible with with certain 3M(TM) Respiratory Headtops and Air Delivery Units.