In this mode both humidity and twilight sensors are active, the units will be normally in stand-by with front panel closed, so that when the humidity level in the room exceeds the set threshold the units start running in extraction.
V tem načinu so aktivna tipala za vlažnost in mrak, enote so običajno v stanju pripravljenosti z zaprtim prednjim panelom, ko nivo vlažnosti v prostoru preseže nastavljeni prag, pa začnejo enote delovati v funkciji odvajanja.