The ONLY thing with this fan is when on oscillation, something clicks ever so softly - it's the refurbish I'm sure the ones in the store didn't make that sound. but, if you're not a totally sound sleeper it may wake you up in the night - or if, during the day, you are annoyed by clicking sounds -... could be just this unit.
I was a little hesitant to buy a refurbished product, but the price was about half the price of a new. When I took it out of the box (which is actually quite small due to the way they package the unit), it was two clicks to put it together and it looked great and it runs constantly (there is no ceiling fan in my living room) and it really does put out a lot of air and looks great doing it! I really cannot recommend this highly enough!!! Best money spent over a comparable regular fan unit.