Quote Originally Posted by JunkYard
I don't think I can use outside intakes; I'll have to put them in a seperate room [inside the house] I know plants need 'fresh' air, but I'm afraid I cannot supply them with anything more than the air circulating in the house already./shrug

I could probably pull air from underneath my house, but it's so damp down there, I'b be worried about mold, and humidity. (Yikes!)

Will they still grow well with just normal house air? I guess I could keep a window open in the intake room.. ..that would help, yes?
Yes, they'll grow fine. The only intake/outtake fan I have in my whole grow room is that shitty plastic one I have pulling air out of my cool tube. And you can see what my plants look like, just check out page 7 of my log