The MaxxAir Steel Adjustable-Height 22 in. Oscillating Pedestal Fan circulates up to 4,100 CFM for powerful cooling and offers 3 speeds for adjustable comfort and cooling level. Featuring steel construction for long-lasting strength, this fan head oscillates up to 90 degrees providing excellent air circulation. For customized cooling, this fan adjusts from 50 in. up to 71 in. offering better control for air circulation and cooling.