Holmes 9" Clean Breeze Digital Window Fan delivers powerful and efficient cooling with user-friendly features, making it the perfect solution for improving your home's airflow. Designed with twin high-performance blades, this fan automatically reverses to draw in fresh, cool air or exhaust warm, stale air, ensuring continuous ventilation. The innovative Clean Breeze feature includes a removable back panel for thorough cleaning, reducing dust and debris for healthier air circulation. This digital window fan features a programmable thermostat, an easy-to-read digital display, and push-button controls, making it simple to customize your cooling preferences. The included remote control allows you to change settings from across the room for added convenience. Adjustable built-in extender panels securely fit larger windows, expanding up to 35.5 inches, offering maximum versatility for various window sizes. Built to last, the Holmes window fan is constructed with water-resistant materials, ensuring safe operation even during rainy weather. The motor is designed to withstand debris and harsh outdoor conditions for dependable performance. With three adjustable fan speeds, this fan delivers up to 1896 cubic feet per minute of airflow with a velocity of 14.4 ft/sec. Despite its powerful performance, it operates quietly, producing only 47 decibels on the low setting. For added assurance, the Holmes 9" Clean Breeze Digital Window Fan is ETL certified for safety and backed by a 3-year limited warranty, making it a reliable and durable addition to your home cooling setup.