Good value
It works for my purpose and I have it connected to a Phillips oxygen concentrator to get even more ozone out of this generator.  If you connect items to the ozone generator other than the ones provided you will need to purchase an oxygen tubing swivel adaptor.  I have not used my setup to make ozonated oil.  It seemed more cost effective to purchase the oil from a manufacturer considering how much time it takes to make it.  This model provides more power allowing for better shielding and effectiveness a few feet from unit.  The programmed setting are exactly what you need making this easy to use.  It isn't loud.  My reader says 57 decibels.
Rating: 5 stars