The Alliance series is designed for large spaces. Its 5.4-gallon reservoir and long run time mean fewer refills. The Alliance features four fan speeds, an adjustable humidistat, auto shutoff, refill indicator, and check filter indicator. It is available in three wood-tones, so the console blends seamlessly into any room. Unit uses one (1) 1045 Super Wick and one (1) 1051 Air Filter. Air filter sold separately. OUTPUT Up to 3700 square feet