The clean and simple operation of the S200 steam humidifier provides joy for the whole family Clean because the water vapor is brought to a boil before exiting, efficiently ridding the water of bacteria and lime. The built-in fan cools the steam, so that the mist that is released at a pleasant, hand-warm temperature. The device can be operated in moments using the control knob. Cleaning the unit is just as convenient: Fill the tank with water and CalcOff decalcifying agent, activate CLEANING mode, rinse the tank and the base and you are done. Last but not least, the S200 has a fragrance container for use with essential oils.