Simu is a powerful ultrasonic humidifier. Visually, it is divided into the three components of upper cover, water tank and cooler housing. This clear structure allows for an uncomplicated man-machine ­interaction. The water tank is removable for convenient cleaning, with an odour filter integrated at the lower air inlet. The fine mist is emitted by the device at an angle of 30 degrees, preventing the formation of condensed water. An LED display indicates the respective outlet volume.