Holmes Dual Blade Twin Window Fan, 2 Speed Setting, White

Maintain a comfortable temperature indoors with the Holmes Reversible Twin Window Fan. Designed to fit most double-hung and slider windows, this double window fan takes in fresh, cool air from the outdoors to provide cooling comfort. Each of the unit's two fans can be independently reversed, allowing you to intake fresh air, exhaust stale air, or exchange air for full-room circulation. Featuring two speed settings and a one-touch programmable thermostat, the fan lets you easily adjust airflow in accordance with your personal comfort level. Water-resistant motors make the fan safe for use during rainy weather. And thanks to its adjustable extender screen and extender panel, the fan can fit securely in a wide range of window sizes.