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 04297 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 2 in x 132 in, 7010365859
Dynabrade 51731 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 1/8" Collet
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 76751, Roloc Disc 777F, 60 YF-weight, TS, 3 in, Die RS300V, 7010363900
3M 16582, Accuspray Atomizing Head, Blue, 1.2 mm, 7010363219
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Dynabrade 78182 3" Dia. Medium DynaBrite Locking-Type Disc, 25/pack
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 26054, PPS Series 2.0 Adapter, Type S18, 3/8 Female, 18 Thread NPS,
4 per case
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 26586, Accuspray Refill Pack for PPS Series 2.0, Red, 2.0 mm, 7100161517
3M 64469 Scotch-Brite Durable Flex Belt, DF-BL, A/O Fine, 3/4 in x 18 in, 7100105418
3M 70995, Scotch-Weld Acrylic Adhesive DP8410NS, Green, 490 mL Duo-Pak, 7100024045,6/case
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case 
