Quote:
Originally Posted by trendo
I spent a lot of time on that website when trying to design my room. Thanks for taking the time to make all that information available 
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Mark's brother used an adjustable 1200 cfm fan. He said they never turned it above 50%, even with 3 guys smoking in there. I forget the dimensions of his room but it would be a good guide.
The most important thing I've read for reducing noise it putting the fan as far from the room as possible, having it pull the air through the duct and push it outside.