This room to room doorway fan is easily reversible and has a life-long lubricated motor rated for continuous use. It has a single speed (1100 RPM), an 11-foot cord and a performance of 55 CFM (Cubic feet per minute). Room to room fans help circulating air between rooms to improve effectiveness of heating systems and save money.

Measurements: 4¾" W x 4¾" H x 1¾" D