Revitalize the air you breathe with the Homedics ultrasonic humidifier CMTF14. 360 degrees of visible cool mist reduces dryness in your air - helping you to breathe and sleep better. The 0.5-gallon tank with clean tank technology is easy to remove and fill and delivers up to 23 hours of comforting mist. Covering areas up to 258 square feet, this humidifier is ideal for medium-sized rooms like bedrooms and home offices. Customize your comfort with a host of refreshing features - including aromatherapy and breathe the benefits of better air.