I live in Texas. I have the o3 elite also. So what kind of machine does your friend have? I wanna get one of those!!! Or do you think it has something to do with the earscope or the tubes or the connectors? I have a feeling ozone is what I am supposed to use too!!!The only side effect which I'm not even sure if it is one is I feel intensely ANGRY , mayb lyme rage, not sure...but im very mad.