We now have a Venta LW45 at home. Currently, the device is set to level 2 in the shower bathroom and runs 24/7.
The exhaust air is drawn off, so the moisture is transferred into the system via the enthalpy exchanger. This way, we currently have a constant 55% humidity. We have a good 190m² to supply.
It remains to be seen how this will develop when it gets really cold outside. Although we still have reserve on level 3, the device then becomes uncomfortably loud, and the air in the bathroom becomes quite humid with the door closed.