Ventilation. For 2x2 help please, do i need a carbon filter set up? Please explain my best route.

You need some way to exhaust air out. I would get an in-line fan which takes care of your exhaust and will also create negative pressure in the tent which sucks fresh air in. You don’t necessarily need the carbon filter, at least until flower kicks in. You will also need a fan inside the tent moving air around through your canopy.

But should i have a fan for air going out. Which would also suck new air in.if vents are open...... should i have a fan comin in and a fan going out. For good flow? Any help is appreciated

Hey friend , I’m currently running a mini grow like this in 2*2 ft and -I don’t use a carbon filter , mostly cause of space saving and I don’t care for the smell - I don’t have intake fan , but I could cause my tent walls are sucked in a bit . Good luck there , waiting to see a diary 🌱🖤✌️