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 60051 .1 hp Straight-Line Quick-Change Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Standard Abrasives 717639, Aluminum Oxide Straight Cartridge Roll, 5/8 in x 2 in x 3/16 in 50, 7100115215
Dynabrade 60052 .1 hp Straight-Line Quick-Change Pencil Grinder, Rear Exhaust, 35,000 RPM, 3/32" Collet
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
3M 62607, Scotch-Weld Threadlocker TL42, Blue, 250 mL Bottle, 7100039192, 2/case
3M 14753, Scotch-Brite EXL Unitized Wheel, XL-UW, 8A Medium, 3 in x 1/4 in x 3/8 in, 7000000700
3M 88892, PSA Cloth Disc 348D, 60 X-weight, 15 in x NH, Die 1500A, 7010360718
3M 36881, Self-Stick Liquid Protection Fabric, Blue, 48 in x 300 ft, 7100169351
Dynabrade 51702 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 3/32" Collet
3M 72003, Powerflow High Efficiency SP3 Particulate Filter System Component 450-01-01R20, 7000131701, 20 EA/Case
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
Dynabrade 55500 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 1/8" Collet
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 28830, 675L, 1/2" X 72", 74u, Diamond Microfinishing Film Belt 7010508919
3M 20730, PPS Series 2.0 Spray Cup System UV Kit, Standard (22 fl oz,
650 mL), 125u Micron Filters, 7100128906
3M 19706, Scotch-Brite EXL Unitized Wheel, XL-UW, 2S Fine, 6 in x 1/4 in x 1 in, SPR 17773A, 7010366223
3M 22399, Roloc Disc 361F, 50 YF-weight, TR, 2 in, Die R200P, 7000028184
3M 16611, Accuspray Atomizing Head, Clear, 1.8 mm, 7000000500 (4 Nozzles/Kit)
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 62816, Adhesive Sealant 760 UV, White, 600 mL Sausage Pack, 7000046609, 12/Case
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case 
