STRONG AIRFLOW — This advanced window fan is designed to bring a refreshing breeze into your living room or bedroom. Its robust airflow system efficiently pulls fresh air from outside or expels stale air, ensuring optimal ventilation and comfort in your space. REVERSIBLE EXHAUST — With just a touch of a button, easily switch between intake and exhaust modes. Whether you need to cool down or ventilate, this versatile fan adapts to your needs with minimal effort. PERFECT FIT — Engineered to fit perfectly into windows ranging from 26” to 38” wide, this window circulator features an innovative modular block system. Ideal for single-hung and double-hung windows with an opening of at least 8” tall, it ensures a secure and snug installation. INTUITIVE CONTROLS — Enjoy a serene environment with 3 adjustable speed settings that operate with minimal noise. Customize your comfort and create a tranquil atmosphere in any room with this sleek and efficient circulator. IMPORTANT INSTALL INFO — Product dimensions are 6.61” tall x 25.94” wide x 5.22” deep. Window screen removal may be necessary depending on the depth of your window. Can only be installed in horizontal position. Built to meet U.S. voltage requirements. Certified, safety-tested, and warrantied for use only in the U.S.