This is a compact and portable device.  I've included a photo with my iPad next to it for comparison.  It is meant for s single room and was bought for the bathroom in particular.
It does a nice job and I like the humidity display.  On auto it will shut off at 50%.  
It has changing color lights that can be shut off if desired and 2 different powers...one for night and one for day.  The sound is minimal and white noise to me.  I feel it actually helps me sleep by covering the  occasional sounds at night made by my pets.  All and all a nice buy.