11ENEnglishNote• Make sure that the pre-filter iscompletely dry. If it is still wet,bacteria may multiply in it andshorten the lifetime of the pre-filter.5 After the pre-filter is completely dry,place it back into the back panel(fig. ‚).6 Touch and hold the reset buttonfor 3 seconds to reset the pre-filtercleaning time (fig. ƒ).Descaling theNanoCloud rotaryhumidification wickFilter alert lightstatus Follow thisCleaning lightgoes on (fig. )Descale theNanoCloudrotaryhumidificationwick1 Pull out the water tank (fig. h).2 Pull out the water tray (fig. }).3 Take the wick wheel off the wicksupport (fig. ~).4 Mix the white vinegar with an equalamount of tap water in a containerthat is large enough to soak theNanoCloud rotary humidificationwick in.Note• White vinegar has 5% acetic acid.• If there are white deposits(limescale) on the filter, make surethat the side with the white depositsis immersed in the water.• Do not take the NanoCloud rotaryhumidification wick off the wheelduring descaling.5 Let the NanoCloud rotaryhumidification wick soak in thesolution for one hour (fig. „).6 Rinse the NanoCloud rotaryhumidification wick under the tap torinse away vinegar residues. Duringrinsing, turn the wick so that bothfront and back are rinsed (fig. …).7 Air dry the NanoCloud rotaryhumidification wick.Note• Do not put the NanoCloud rotaryhumidification wick under directsunlight.8 Touch and hold the reset buttonfor 3 seconds to reset theNanoCloud rotary humidificationwick cleaning time (fig. ƒ).