I took a quick look on their website but couldn't determine
this. I do know they have some proprietary method of generating
the ozone (or Aran as they call it). They say that Aran is an
even higher form than ozone (O4, O5, O6, etc.), which is more
effective. I've read other sites that say these claims are bogus
because these higher forms break down very very quickly.
Not sure who to believe, but I think the Aranizers are effective.