Recommened CFM

i have finally purchased a compressor for my airbrush [:D] and now want to build a spray booth. i have the basic layout, for the booth, done. i want to use bathroom exhaust fan(s) to vent the booth and need to know what the recommened CFM is. i found two types at my local hardware store. one was rated at 70 CFM and the other was rated at 50 CFM. which one would be the best to use [?] BTW the size of my booth will be 24"x36"x24" (LxWxH)

any and all info will be greatly appreciated [:)]

This link will tell you all you need to know.

http://modelpaint.tripod.com/booth2.htm

Mike

a very informative page, thanks for th link [:)]