For use wherever there is compressed air available. Designed for ventilation of confined areas, tanks, any place with a need to disperse and remove fumes. This unit is reversible so can become an exhauster within minutes. No air motor required. Technical Features: *Rated operating pressure 2.75 bar – 7.58 bar *Heat treated to T6 Aircraft Aluminium Spec. *Six guide vanes to eliminate turbulence. *Four blades, precision balanced propeller.