Vornado creates cutting edge products – so when we set out to create a window fan, we did our research and then rewrote the formula. The result was just over 6″ tall, unobtrusive and clever enough to be seamlessly installed in windows from 24″ up to 38″ wide using an innovative modular block system. Its electronically reversible chamber smoothly brings fresh air in or exhausts stale air out. Rain or shine, the weather-resistant casing doesn’t mind. Either way, you’ll still enjoy the view. STRONG AIRFLOW �� Our window fan harnesses powerful airflow to efficiently circulate fresh air throughout your home, whether it’s the bedroom, living room, or through a kitchen window. Experience a Vornado-like breeze that revitalizes your living spaces with every use. REVERSIBLE EXHAUST �� With just a simple touch, switch between fan mode and exhaust mode to either pull in cool, fresh air or expel stale air. Perfect for maintaining a comfortable and refreshing atmosphere in any room of your home. PERFECT FIT �� This horizontal window fan is designed to fit seamlessly into windows ranging from 24�� to 38�� wide, thanks to its innovative modular block system. Ideal for single-hung and double-hung windows with at least an 8″ tall opening, ensuring a perfect fit in any room. INTUITIVE CONTROLS �� Enjoy customized comfort with our window circulator��s 3-speed settings, designed for minimal noise. Easily adjust the airflow to your preference, whether you’re relaxing in the bedroom or cooking in the kitchen, without disrupting your peace. IMPORTANT INSTALL INFO �� Product dimensions are 6.58�� tall x 23.85�� wide x 6.12�� deep. Window screen removal may be necessary depending on depth of your window. Can only be installed in horizontal position.