Overbuilding your ventilation is a good thing. Also the Vortex fans have a 10 year factory warranty. The 6 in 449 CFM fan that Blue Bear talks about is an awesome fan and moves a ton of air. I have mine on a homemade rheostat (dimmer switch) to be able to dial up and down the flow rate. The switch cost me 5 bucks at Lowes.
MVP Reviewed by MVP on . Did I get oversold on the Carbon Filter? Hey everyone- It's getting that time that I need to add a carbon filter. I went down to my trusty store with what I thought I needed in mind and I walked out with about 2x that. I have a 12 x 18 x 8 foot room but I use about 12 x 4 feet right now. I might increase but I can't see using more than 12 x 12 ever. What do I need? Thanks everyone. Rating: 5