Some great suggestions here thanks all. My exhaust fan is set to automatic to keep the humidity and temp I have set so it’s not as simple as just turning it down.
Or maybe it is. I might try it as we enter winter and temperatures are lower in my grow room over all anyway.
I saw people mention opening the unused ports, would I not risk light leak with that ?
Some of the pvc options look do-able. If I can finagle my way past the big 30gallon no till pots in my tent. 