The only difference between the standard Fullface Mask system and the PRO-AIRE 40 is the Pro-Aire is NIOSH Approved. This is only required if the company you are working for requires this for their company regulations.

AXIS Brand ProAir PA40 One Person Fresh Air Turbine Breathing System with an Air Supplied mask.
The ProAir 40 comes standard with: ProAir Turbine Air Pump, 40 Foot Air Delivery Hose with Quick Disconnect Couplings, Air Supplied Full Facemask with Whip Hose and Belt, Instructional Manual.

Locate the intake air pump in a fresh air location and breathe HEPA filtered clean fresh air in virtually any contaminated breathing environment. This unit is portable, safe and a pleasure to use, the ProAir respirator system supplies 7 CFM of cool Fresh Air from a Twin Turbine Pump designed to last a lifetime.

Dont forget to order the fullface lens protectors and a back up replacement lens.
Click here for the Pro-Aire 40 Halfmask System.