Does just what you expect but with a slight downside
I purchased this product because I live off of a busy street and need something to drown out the noise while I am trying to sleep.<br /><br />The Dohm does the job however I can still hear a car every once and a while, but it isn't too bad.  You can easily adjust the volume a fair amount by just turning the housing.  (one note about the noise though, despite the claim of white noise being unnoticeable I do find myself having to turn it off if i want quiet)<br /><br />The biggest downside I have found is the machine is always warm to the touch when it is running.  Just a random side note.
Rating: 4 stars