3M TR-971 Versaflo Air Flow Indicator for TR-600 Series PAPR

3M TR-971 Versaflo Air Flow Indicator

The 3M TR-971 is an air flow indicator designed for use with TR-600 Series Versaflo powered air purifying respirators. It provides a visual confirmation that the system is delivering the required airflow to the headtop. This component is intended for workers who rely on the TR-600 PAPR for respiratory protection in industrial environments. It attaches directly to the blower unit for immediate status checks.

Steel construction for daily use

The indicator features a steel housing built to withstand the knocks and vibrations common on job sites. Its robust mounting connects securely to the TR-600 blower, reducing the risk of accidental detachment during movement. The mechanical design requires no batteries or electronic calibration, so it remains functional even after prolonged storage. Workers can verify airflow at a glance without interrupting their tasks.