This looks like a story without objective proofs but from my tests and results i know that one can stop a bacterial infection quickly (tooth infection for example) so for this ok.
But the rest of your comments are a bit too much...
"No one has to suffer from parasites, bacteria and viruses when you have one or more of these electrical healing devices."
Really ? It is a miracle...
"it is scientific logic. Truth in healing"
Using the word scientific does not make the claim scientific.
Same thing for truth.
As for the infos in the article you link to, it is so full of deformations, exaggerations, inaccuracies that i don't bother answering it...