(Klarstein DryFy 20L Dehumidifier. The DryFy 20Ldehumidifier made byKlarstein impresses with its high efficiency and versatility. 42 dB), it is not a nuisance in living or working areas. The automatic dehumidification feature starts the appliance when the humidity level exceeds the set value by 5 per cent and enables targeted humidity regulation between 30 and 80 per cent.