Don't you think that's splitting hairs a bit, if you don't want to change the room but at the same time want to separate the WC with a door, which inevitably creates a new room? ;)
But anyway.
Regarding the odor extraction:
There is a branch in the supply line for the flush water between the cistern and the WC ceramic. See the attached picture.
This is simply connected to the controlled residential ventilation like a normal plate valve.
But make sure that a throttle flap is installed on the distribution box to precisely adjust the air volume.
Otherwise, the toilet will start to whistle and also extract air via the overflow over the cistern and the flush plate. This causes dust to settle there and enter the cistern.
We currently have this problem because the ventilation installer did not install a throttle.
According to Geberit, a maximum of 8.5 m³/h should be extracted to avoid this. With us, it is sometimes 13 m³/h.
Now the ventilation installer has to come back to install the throttle flaps...
Otherwise, I can highly recommend the system.
