quick question about odor

Is it necessary to put a carbon filter on the intake and exhaust to eliminate odor or should i only put one on exhaust?

the intake brings air in, so theres no need to put a carbon filter on it. Just on the exhaust should be good. I see someone appreciates Method Man. Happy growing to you. P.S. You could grow low odor plants and then you dont even need exhaust.

yessir thanks a lot can't wait to start

if you got the money do both.