I was very interested a year ago, but when I read out the current output, max 100 micro amp, I decided not to buy, as I thought it to be far too low to have any effect. My induction cooker, max out at 30 ampere 240 volts and yet I don't think it kills any viruses. I have a electrifier from 0.5 mili amp to 20 mili amp, which I can feel the effect at roughly 5 to 10 mili amp., furthermore, magnetic induction needs a receiver, and human is not a good receiver, so I doubt it has any effect at all.
Well, I may be wrong, like to hear from anyone who has tried it.