Fan-Tastic little fan!  Moves allot of air.  It produces a respectable amount of noise on high, but I would not say it is obtrusive.  We use it constantly while camping.  The only problem that I have seen with the fan is that the feet are weak.  Be careful not to break them off.  After both cracked, I filled the bottom of the feet with JB Weld.  Now they are light and strong.