active air input matching fan

hi!

trying to match an active input fan to the correct power and need some help as linking three tents in a row probably wont be possible with passive extraction alone anymore

extraction is via a 800m3 fan in the last tent of three and i figured as it is pulling on a massive charcoal filter it probably works more like a 600m3 in "real" performance.

so i wonder if having the same fan set to half power, it has a switch, pumping air in with 420m3 on the first tent would be the way to go?

Setup the push fan on a dimmer switch & just dial it in w/ the pull fan until you achieve the best overall airflow / least turbulence