Tr-300 Papr Low Airflow Alarm Check - 3M Versaflo TR-300 PAPR Manual

3M™ Versaflo™ Powered and Supplied Air Respiratory Systems

TR-300 PAPR Low Airflow alarm check

An alarm check should be conducted before each use.
With the motor/blower on:

1. If attached, remove the airflow indicator or breathing tube from
the outlet of the motor/blower. Tightly cover the outlet of the th
motor/blower with the palm of your hand. The motor should
automatically speed up, attempting to compensate for the low
airflow condition.
2. Continue to press your palm tightly against the end of the
outlet, making a tight seal. After approximately 30 seconds,
the unit will sound an audible alarm and the red fan shape
LED on the top of the motor/blower unit will flash.
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