Their scheduled volume of air is sufficient, only with RFs off the air won't move around in the aircraft at the required (for certification) flow rate.
Correct,,what you dont seem to understand is that packs Air and recirc fans air are used to move this air around in the cabin...
Air from packs and recirfan meet in the mix manifold and then out into the cabin...wall risers for the packs to get cool dry ACM non sticky in.
We agree or not?
With fans off.....its fine/optimum until high cabin altitude when as the AMM states and posted here zillions time:
As cabin altitude increases, the pack valve is biased to supply a lower airflow rate
You write that the packs..
They are there to ensure sufficient airflow through the cabin at all levels.
What in the sentence above from the AMM are you not able to grasp???
AIRFLOW(packs and or recirc fans) RATE IS DIRECTLY LINKED TO RECIRCULATION RATE!!!!!!