Of course, I agree completely with Rick's detailed product review. Once you get one of these units, you develop a sort of passion for it. I had originally found them after searching high and low for a dehumidifier that was small, did its job and was energy efficient. I couldn't find anything better on the market.
Without having taken the unit apart, I am suspecting it has a sort of "rotary" compressor, since that spinning fan seems to be pretty integral to the whole system. Also, the size and dimensions of the unit suggest that there isn't room for an independent compressor and drive motor
. I think (guess here) that they are running the fan and a rotary compressor off the same drive axle.
Man, I LOVE this thing.