Holmes Hawf2043 Dual Blade Twin Window Fan with One Touch Thermostat

The Holmes Electronically Reversible Twin Window Fan draws in fresh, cool air from the outside or exhausts stale, hot air from the inside with the touch of a button. The quiet and efficient operation makes this fan ideal for living room or bedroom use. It is designed to fit into virtually all slider and double hung windows and includes 2 adjustable extender screens. Control the thermostat and 2 digital comfort settings with the 1Touch controls.