The Air Director the original, patented, combination window/floor fan. A standard window fan can't always get the air to the right location, but the Air Director pivots to send the air exactly where it s needed most. Plus, it works as a powerful floor fan too. Three, Whisper-Quiet Speeds. Manually Reversible for Air Intake for Exhaust. Fits Windows 18" High and Larger (fits in front of window screen). Fully Assembled. U.L. Listed.