Just as ordered....would have been nice to have sone info on each setting.That info was not available when I ordered so i took a punt.7 at highest is a given to move that amount of air but generally one does not run on high unless frying/recirculating air in the space.All speeds are louder than I would have liked.Please someone design a vent hood that looks as sharp as this one but with the possibility to locate the actual motor remotely,like a furnace room.A fan only gets used in relation to its noise.....