Ya I know what you mean, I love the smells, and the different smells that different strains make later on... But unfortunately smell gets people in trouble lol. I got one of those 6" Ventech brand inline fan and carbon filter combo, and got one of those fan controllers, and it's still loud. That would be overkill for your setup though I think. A 4" combo should be fine. It might be noisy still though, will be quieter if ya get a controller and turn it down.