I know there are ten threads like this, but I am still a bit confused on the general setup. People keep saying they use fans to keep the area pressurized???? Also are you better off putting two box fans as exhaust with no fan sucking air in, or 1 intake and one exhaust? Is it better to keep the intake fan not blowing right on the paint? And as far as an Air vent, are you guys just using like 12" rubnber hose as a vent or is it actually a fan pushing fresh air into it? I have all the plasitc and the setup is good but I am a bit confused as far as the fans and fresh air and pressure??????Please help as io am priming today?