Hey Doc...the room is in an attic, there is a 3" knee wall, inside the wall it's about 63..there are intake and exhaust fans going in and out of there..they are about 6' apart, and the knee wall area is several hundred cubic feet, with roof vents in it, so i think the air has plenty of space to refresh and cool. I should also say, the room itself is approx. 8'x4'x4' high.