Maintaining the ideal humidity level in your home provides a number of health benefits including alleviating dry skin, cold, flu, and allergy symptoms, easing asthma, and much more. This Dual Action Air Humidifier from Beurer features ultrasound humidification technology to ensure an optimum relative air humidity. The control dial on the side of the unit lets you easily select your desired evaporation output. The operating ring will illuminate to let you know when it's operating, and the quiet operation lets you enjoy a peaceful, healthy environment. The 6L water tank is simple to remove and refill when necessary. The convenient switch-off feature with display function will turn off the unit automatically.