Let me shed some light on this ozone topic for you. I work with ozone machines in my profession. I own a company that deals with water and fire restoration. We have to remove mold, mildew and smoke on a regular basis. The easiest way to totally remove any hint of this and other smells associated with floods and fire is with an ozone generator. They are very expensive units and this is not new technology. It has been around awhile. It works 100% and that is no BS. I couldn't make my living without it. If you go to a house that had a kitchen fire and smoked up the whole house, you can clean the smoke residue but the smell is still there. Run an ozone machine for a few days and circulate the air and the smell is gone. Now, I'm not talking gone for a little while, I'm talking gone for good.
I have not used the Ozonics unit yet in a hunting situation but I have used it on a few jobs on some very localized smells just to see if it would do what the others do. It worked every time. I will be taking this unit to the woods with me this year and try it out in some hunting situations. I don't know how effective it will be in free air applications, but I'm sure that if you take the time to set it up like the instructions say (with the curtain effect), it should help tremendously.
Hunt as though your life depended on it, because one day it just might!