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.

3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 83539, Scotch Heavy Duty Packaging Tape Dispenser ST-181, Foam Handle withRetractable Blade, 7000028763
ACS CX1250 Diamond Belt, 1/2" X 24" 60u
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 97957, Hi-Strength Spray Adhesive 90 CA, Low VOC <25%, Clear, 24 fl oz Can (Net Wt 19.0 oz), 7000121418, 12/Case
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case 
