Hi Bea
Essentially there is little difference between H2O2 (Hydrogen-Peroxid) and ozone in water. Both supply nascent or active oxygen.There are stabilizers even in food grade H2O2 (Hydrogen-Peroxid) which you would not get in your water if you were using pure oxygen to make the ozone for your water.However, if the room air that is going into your Enaly is damp, you will get some nitrogen compounds in your water. These are not usually a problem and the benefits of the ozone in the water far outweigh the detriment of the NOX, but some people are sensitive to NOX.
Hope this helps,
Paul