Designed for ultimate versatility this Comfort Zone Portable Twin Window Fan offers three speeds that can generate a strong breeze or circulate the air in your room with ease. The output is controlled with the manual dial allowing you to adjust the airflow with a simple turn of the switch. Not only can this twin blade window fan fill your home office bedroom or living room with cool air but it can also be reversed to push hot stale air out from your home. This exhaust function is especially useful for combating hot humid air. With a removable screen this twin window fan with reversible airflow control keeps bugs dust and debris from entering your home through the fan itself. Featuring a carrying handle this twin speed window fan can be moved from room to room and window to window with ease. For added convenience this fan also features two sturdy feet for tabletop use on your desk or bedside table. A timeless white blends in with d?cor well.