Nice article - but it contains only speculation that it might be a problem if the manufacturers claims are true - not a bit of proof that they are. There is no question ozone in significant amounts kills an oder. The problem is a unit that meets the standards (extremely low) for indoor use attended use ( very effective given time ) cannot possibly be producing enough ozone to have an effect in an uncontrolled open/outdoor enviroment. Especially with even a bit of wind to cause further dilution.
The company has to this point not released the results of any scientific controlled testing to support their claims. Only anecdotal, loosely controlled observations with so many variables present no reasonable conclusion can be claimed. I'll change my opinion only when I see the results of a real test. All are welcome to their opinions as always.