Generally great design. Powerful and quiet airflow. I suggest two changes: first, offer a detachable power cord, with a socket at each end that a user chooses depending on which is nearest to an outlet. Keep the sockets on the inside (of course)---it's silly to have the cord coming out of the rear/outside surface of the fan, when it will need to be routed inside to an outlet. Yes---it will raise production cost a bit, but if fairy priced, well worth it. Second, integrate a timer into the unit, to allow programmed on and off times. You can plug the unit into a separate timer, but the unit will not turn on when that timer turns on the power, defeating most of the purpose of using a timer at all.