I am about to start using a FUJI HVLP turbine unit to do spray finishing, water borne and oil based. I will be doing this in my basement work shop, and want to make sure I have adequate ventilation. The workshop has three windows, each at the top of the wall. One will be open for intake, another for exhaust. I will use a three sided spray "booth" made from styrofoam panels. The middle one will have a cut out, and in back of it will be a fan unit, with flexible ducting run from the fan unit out the exhaust window. I will be using a very light filter over the cut out so the fan blades do not get covered with spray particles. My question is how many CFM do I need the fan to exhaust? I'm looking at two models from Ramfan, the 8" is rated at 980 CFM, and the 12" at 2500 CFM. The ducting run will be about 15 feet long.
Thanks for any advice!