Which central ventilation system?

What about parquet flooring and the ventilation system? Probably not so great either..

? I don't see any fundamental reason against it.

What about parquet flooring and ventilation system? Probably not so great either..

It's not a problem!

Well, because of the dry air?! Supposedly not good for parquet [Ode] or is that wrong?

For this case, there is controlled residential ventilation with moisture recovery

na wegen der trockenen Luft?! Soll nicht gut sein für Parkett Ode ist das falsch?

True, property., but a few days a year with low humidity is not a problem. At least for us and our oak floorboards, they are also well glued, so in winter you hardly see any gaps (the wood seems to hardly move).

If you are given the choice:

Zehnder, HOVAL, PLUGGIT, LTM or Inventer

which one would you choose?

And above all, why?