In my apartment, which is inhabited by me and my friend, unfortunately, is no window in the bathroom and only one, nothing ehr effective ventilation. For Dehumidifier: It does its job effectively and not stöhrend loud. The operation is logical and simple. The tank can be quickly emptied and easily cleaned. Unfortunately, the first delivered was defective. When you first turn I was flying a piece of plastic from the fan towards dirket face, well I'm wearing glasses and these protected my eye. A call to Amazon and the device has been changed quickly and easily. The new device is working properly.