PurpleGunRack
Well-Known Member
Even if I grow open air with no tent? I’m hoping eventually with a tent I can use a dryer hood not being used anymore to just exhaust the heat and humidity outside and not have a filter.
You don't need extraction fan in an open area, but you need it in a tent, and you want something that moves +350m2 per hour.
You only need the filter if you care about smell.