Hi perusing
The dual, fed with oxygen will make a litre of fully ozonated olive oil in less than 500 hours.It will take less time for smaller amounts. I feel that the dual dielectric is a better machine than the Maxi or Mini. It's just made tougher and it's more pure.
I think you're a little confused about the oxygen generators. The OXY R1 and H1 are just that. They produce oxygen, not ozone. They are made to replace the tank and regulator you would normally use with an ozone generator. They are also used for breathing oxygen with a nasal cannula for oxygen bars, aerobics etc.
The 2 to 6 week delivery for the Maxi and Mini is because I make them as they are ordered and because delivery is slow across the border.
Hope this answers your questions
cheers,
paul