I think the DNR has better things to do than check your pack for your "ozone machine". I wouldn't use it but who cares. I think the poll on the other thread say the same. Most don't care and the legals are out numbering the illegals. If this is illegal I think range finder should be also. A range finder gives the hunter a huge advantage by knowing distance to target. I would say that device is aiding the harvest, but they're legal? I don't know.