Since we have an interior, windowless bathroom so, the climate reminds it after a longer, hotter showers quickly to a hammam. Ventilation is by far not sufficient to dissipate the mist, so quickly threatens mold risk if you are not ventilated in the apartment inside. The dehumidifier seemed there to be the right solution. The device is small enough to be integrated into the approximately 4 square meters bathroom. The dehumidification performance is good, after about half an hour you can disable it (let) and has again an acceptable humidity. There is only one knob, which regulates the automatic moisture-dependent operation. It ranges from off to continuous operation, the correct position can be found after a few attempts, so that the unit shuts down and correct itself if you go straight to bed after an evening shower. The dehumidifier is audible, but quieter than the shower or even the Badentlüftung, making a total for me not disturbing. The only shortcoming is in operation, the smell of plastic, but I hope that soon disappears. For my purposes, it was certainly the right purchase.