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 52169 Handle Assembly
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 41597, Polyurethane Adhesive Sealant 560, Black, 310 mL Cartridge, 7100005901, 12/Case
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Standard Abrasives 713276, Aluminum Oxide Handy Roll, P180 J-weight, 2 in x 50 yd, 7100037246
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
Dynabrade 51731 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 1/8" Collet
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Standard Abrasives 863299, Quick Change TR S/C Unitized Wheel, 632, 2 in x 1/4 in, 7010330149
3M 66631, Cloth Belt 341D, 60 X-weight, 6 in x 48 in, Film-lok, Single-flex, 7000118865, 20 per case
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 08217, Universal Adhesive Clear - 3, 200 mL Cartridge, 7100006285, 6 per case
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
ACS Diamond Cloth Belt, CX1250 3" X 30" 75U
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
3M 08026, Sealant 730 UV, Clear, 305 mL Cartridge, 7100003045, 12/Case
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case 
