Went to hardware store (again) and got some 20" X 24" filters. Built a frame to hold three and mounted on the rear rail of the booth. Built ends of the air outlet box with left over foam from the hanger door job. The top is partially left over foam and left over flooring. The flooring goes over the portion where the fans are mounted to the wall and is removeable so I can work on fans if necessary. The filters remove the overspray and prevent it from going into the neighborhood. They will be held on with duct tape.