How do I get fresh air into my grow tent? I opened the ports on the bottom of my tent but I am skeptical that my 4 inch ac infinity exhaust fan will be enough to get fresh air in my 4x4..
@chonging.kong Ok, so you did add that into your CFM calculation. You should be good. Only concern I can think of is if your grow light produces too much heat and you can't exhaust it quick enough. Have you already tested that?
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Do you have a carbon filter connected to the fan or no?