Honeywell HCM650 4-Gallon QuietCare Cool Moisture Humidifier QuietCare humidifier with 4-gallon-per-day output; designed for rooms between 850 and 1400 square feet Adjustable humidity control with 3 moisture settings; 30 percent quieter than other tower models EasySet Digital Controls with 1- to 18-hour programmable timer Antimicrobial-treated filter helps prevent migration of mold, fungus, algae and bacteria Measures 21 by 17-1/2 by 13 inches (HxDxW); uses HC-14 replacement filters; 3-year warranty