Mebby Polar ultrasound humidifier maneuvers by nebulising cold air. The credit goes to vibrations those cannot be detected to the human ear (ultrasounds). In that case, it is awfully quiet and can be left every time as it does not disturb the baby. Here, steam is heading upward to permit lesser compression on contact surfaces. There is an adjustable nebulisation system that comes with Mebby Polar. Enlightening LEDs are there too to specify the time of switching on or off of the apparatus. When tank water is low, the device switches off automatically. Supply tank removal is done by a practical handle. The device performs incessantly more than 10 hours.