Two types of alarms – one audible and one visual – alert user to either a low battery or low flow, such a when a particle filter is fully loaded. LED lights on the battery indicate its charge status on and off the charger.
The 3M Versaflo TR-307N+ PAPR assembly includes a TR-302N+ PAPR unit, TR-371+ filter cover, TR-327 easy clean belt, TR-332 battery, TR-341N battery charger kit, TR-3712N HE filter and a TR-3600 Pre-Filter.

Dynabrade 80057 Motor Brush Set, 110/120V-60 Hz
Dynabrade NF1A NitroFile Abrasive Belt Tool with 11287 Contact Arm
Norton 66623325035 - 2" 120 Grit Fine Grade Aluminum Oxide Vortex Rapid Prep Green TR Non-Woven Surface Preparation Disc, 50 Each
Dynabrade 61397 Spring
Dynabrade 91497 2" Dia. Type R CLEO Wool Locking-Type Disc, 10/pack
Dynabrade 56183 6" Dia. Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 01185 Vane Set (4pk) 
