I think it was in Field and Stream, not too long ago. Someone tested one of these machines with drug dogs and found that in each test, no matter the type of concealment used, that the dog found the hidden item. However, they indicated that the ozonics machine delayed the find by several seconds compared to the other tests. It does not eliminate odors but it might reduce it enough to give you 5 - 10 more seconds to make a shot undetected.
Best best, IMO, is be as odor free as possible and always hunt the wind.
Another gimmick designed to separate you from your money. They'll be trying to sell has-mat suits eventually, lol. Just hunt!
