Robust and heavy duty oscillating type propeller fan comprises of aerodynamically designed three blade pressure-cast aluminum die cast impeller, Sturdy close, Mesh guard, Energy efficient motor in an protected by an epoxy powder finish finishaerodynamically designed blades for higher air delivery and minimum noise leveldynamic balancing of bladesindexable to different positions up to 360oscillation to 85 for total flexibilitysturdy finger proof brazed wire powder coated guardsrobust base to ensure absolute stabilitypower consumption limited to bare minimumgenerally in accordance with is 2997, 1964.