Warning: they kill a goldfish with pesticides to show the water was toxic and then after ozonating the water they put more fish in and they don't die. It looks like a hot corona machine.
You are right, it is most likely hot corona.
But ozone is great for breaking down a large number of toxic chemicals including herbicides, pesticides, dioxins, formaldehyde, freon, etc. And it will destroy viruses, bacteria, fungi and molds.
This is the first ozone generator I got and I don't know if it's as good as the more expensive one, but the ozone smell is the same and the water even tastes more "ozone-y".
www.amazon.com/Aqua-6-Ozone-Generator-Ozonator-Purifier/dp/B001IYQ1LY
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This is the first ozone generator I got and I don't know if it's as good as the more expensive one, but the ozone smell is the same and the water even tastes more "ozone-y". www.amazon.com/Aqua-6-Ozone-Generator-Ozonator-Purifier/dp/B001IYQ1LY
For that price the machine is definitely going to be a hot corona. The big drawback to these is that they generate nitrogen and sulfur based acids when the ozone is generated with air instead of pure oxygen.
How bad are nitrogen and sulfur based acids? Is it worth using it in water for the ozone?
How bad are nitrogen and sulfur based acids? Is it worth using it in water for the ozone?
These are primarily nitric and sulfuric acids, but they are not a major problem in the tiny amounts formed. More minor irritants to the tissues. If ozonating water though a simple way to deal with these is to use spring water or if the water is distilled or reverse osmosis just add a pinch of calcium carbonate (oyster shell, dolomite, coral, etc.) or magnesium oxide. Any of these will neutralize the acids.