The Moist AIR Whole House Humidifier MA-1201 is an evaporative cool mist humidifier featuring a 12 gallon output for rooms up to 2500 sq ft. The digital humidistat automatically maintains your desired humidity level with digital accuracy. It has a 3.9 gallon water holding capacity and a 4 speed fan for smooth operation. The MA1201 also features a high output evaporative wick which retains minerals and delivers clean and natural moisture into the air. Absolutely No White Dust: Wick traps all minerals and impurities from the water, delivering 100% clean and invisible evaporated moisture, Removable side-fill water bottle, Check filter indicator, Easy-roll casters for portability from room to room as needed. One-year limited warranty (2 years on motor) – Unit size 23-1/2 inches x 16-1/2 inches x 21-1/2 inches weight 13-1/2lbs- color White.