hi guys..... im currently building a spray booth 15deep x 20 wide x 18 high... i picked up these german made fans that are used on fire boxes new for 10 bucks each...the intakes are 31/2.."..outlets are 2" they spin at 1800 rpm...im thinking about mounting 2 of these fans on the booth floor but im not sure if this set up would be the best way?? if i run 2 of these fans will this make enough air flow to remove the paint fumes???