This versatile 9-inch twin window fan from Comfort Zone offers a range of features to keep your home comfortable. With two-speed settings you can choose between a gentle air current for circulation or a strong breeze to cool down any room. The auto-locking accordion expanders adjust between 22-1/4 and 33 inches ensuring a secure fit in your window while the reversible exhaust function helps push out hot humid air. The removable fabric cover provides a tight seal to keep out bugs dust and debris even when the fan is not in use. For added convenience the portable carrying handle allows you to easily move the fan from room to room and the sturdy feet make it suitable for table or countertop placement.