The Lasko Adjustable Twin Window Fan is designed to provide optimal airflow and cooling in your home. Ideal for any window type (double-hung, casement, or sliding) that measures between 22" and 32", this fan features expandable side panels for a perfect fit. You can easily adjust the fan's direction for either intake or exhaust, while its slim design allows you to enjoy the outside view without obstruction. Backed by a 1-year limited warranty, it’s a reliable choice for comfort any time of day or night.