Cool moisture humidifier features a permanent washable filter and Quietcare technology that is up to 20 percent quieter than similar models. Humidifier runs up to 24 hours per one filling and covers a medium-size room up to 1400 square feet. Design includes three moisture output levels; Illuminated, silent, soothing waterfall window; and adjustable humidity control. Humidifier is easy to clean, carry and fill.