[ryans69chevy]

Here is the space in the garage I'm talking about. It's my catch all space at the moment, but it's got a window on each wall for intake and exhaust. Plus its in the back, so it would be somewhat out of the way. I could build a 10x9 with 2x4's and just leave the thing up for a few years. Should be able to get just about anything I need to prime in there.

For the intake side, does a person put the fan up and have the filters between the window and fan? Then for exhaust, put the fan between the window and filters?

Thanks for all the suggestions so far.