3M Supplied air respirators require a source of clean breathing air such as plant air systems or bottled air. This clean, breathable air can be delivered to hoods, helmets, full facepieces, half facepieces and loose-fitting facepieces. Supplied air respirators offer many features over traditional respiratory protection, such as cooling or heating incoming air; fit testing only required for tight-fitting facepieces; and low maintenance. Complete systems include a supplied air hose, an air regulating valve, a breathing tube, and a helmet, hood, or other facepiece.
Potential benefits include:
A cost-effective way to provide a high level of respiratory protection
3M’s range of supplied air valves can cool or heat air by up to 50F (28C)
No filters, cartridges, or batteries to maintain
Supplied air provides no additional breathing resistance to the wearer
The vortex assembly can cool compressed air by as much as 50F (28C). It can operate on pressures ranging from 60-90 psig, depending on hose length. Assembly includes:
Cooling tube with quick disconnect fitting
Waist belt
Holder

3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 76624, Roloc Disc 777F, 60 YF-weight, TR, 1 in, Die R100N, 7000045620
Insize 3294-3, NON ROTATING SPINDLE DISK MICROMETER, 2-3", 6928640328176
3M 08237, Semi-Rigid Parts Repair - 3, 08237, Black, 200 mL Cartridge, 7010327900
Dynabrade 15336 Rubber Drive Wheel
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty 
