Unfortunately or fortunately rather, the "claim" or "burden of proof" is on you (and not on anyone else) to prove that your zapper does indeed do what you say it does.
You cannot viably state that your product works simply from anonymous anecdotal 2nd and 3rd hand stories and non-published studies.
I do not doubt the hard work that you have put into testing your equipment, however, without publishing or at least, "making public" these studies with clear and accurate statistical and mathematical testing parameters, no one can ever speak on the efficacy of the subject.
You must perform rigorous hypothesis testing before you can say with any accuracy (especially when you are talking between 90% to 99%) that your claim is true.
If the zappers were completely benign to the human host then there would be no issue in simply "trying it". However, this is not the case and in so doing, the risk of making an error in such an instance is greater than the possible benefit of treatment with this machine.