The TRANSOM Window Fan from Vornado features a streamlined rectangular profile that sits securely within most window openings. Built to move air efficiently, it pulls in fresh outdoor air or reverses direction to vent interior air outside. Manual controls provide straightforward adjustment across four speed settings with automatic temperature regulation. A durable, weather-resistant housing, extended eight-foot power cord, and patented Soft-fit System allow installation in windows measuring 26 to 40 inches wide.