Air too dry! - Replace old ventilation with enthalpy ventilation?

So, if someone complains about permanently dry air with 20% humidity, clay simply does nothing at all!

I also wrote that this is NOT the solution and marked the information accordingly.

Clay can smooth out humidity, yes, but nothing more.

Now suddenly it can?

That means if someone here soon complains about fluctuating humidity, you can happily smear some clay somewhere for them...

Why be factual when it gets personal. Suddenly no longer interested in facts?
Very bad backpedaling maneuver.

It still has nothing to do with the subject.

It still has nothing to do with the topic.

You are writing that and evading professionalism.

Regarding the OP's problem:
The idea of the replacement is, as already stated, sensible in my opinion, but might not be sufficient. Additional measures could become necessary. There were plenty of tips about this – my remark merely supplemented this list. That is a "can," by no means a "must."

I leave the ventilation off when no one is at home.....
Or regulate it according to the time program.

So it is usually 40-60% in the rooms.

Maybe something from practical experience: I retrofitted an enthalpy heat exchanger and am very satisfied. Previously very dry air, afterwards consistently pleasant. Ventilation system runs 24x7. Otherwise only drying laundry and a few plants in the house, no humidifier. So a clear increase in comfort, and the thing has now been holding up well for about 9 years.