I have been using the device for 2 days now and the humidity has only changed to 0-2% (measured with the recommended beurer HM16). This corresponds to the normal change over the course of the day, even without a dehumidifier. My goal would be to bring the humidity from 62-65% in the living room and bedroom to a value below 55%. Do I need to give the so-called humidity killer more time, set it up differently or buy another dehumidification solution?