When you need to cool down a large space in a flash, look no further than this Perfect Aire 20" high-velocity oscillating pedestal fan. The 20" diameter industrial-grade aluminum fan blades and 1/5 horsepower motor deliver up to 4,700 cubic feet of air per minute. The all-metal construction and durable powder coated finish makes it ideal for rugged working conditions like construction sites and warehouses. This pedestal fan has a sturdy steel base for stability and is height-adjustable between 40.5" - 54". The wide oscillation feature provides a steady flow of air, with 3 speed settings to adjust to your preference. Best of all, the heavy duty copper-wound permanently lubricated motor means you get Comfort..Built To Last.