Keeping in mind that a do it yourself 9 volt generator will almost surely produce results that are less than the commercial home generator tested, look at how that compares when you do the math:
12.20 divided by 0.024 gives the result that Utopia Silver provides 508 times as much surface area per milliliter of silver solution as does the home generator which was tested. In all likelihood the results would be even greater in favor of the commercial product if home solution made with a simple 9 volt batter setup was compared. The results are even more marked when the home solution is compared to Mesosilver.
It might not take hundreds of thousands to duplicate the results of the commercial product at home if you have the knowhow, given that you need not have a commecial sized setup. It still would not be cheap to produce what it takes to literally atomize the silver by means other than low voltage or EIS. Maybe you could get Luke Skywalker to sell you part of what the process takes (and when you watch the process, it does indeed remind of Star Wars).