Ozone is highly reactive and bad for lots of synthetics. Unless you're pushing into the fabric to get at all the scent particles, it's just surface degradation and not much, really.
If you think the hunting ozone generators are too expensive to try, then look for the same thing marketed for other purposes. Indoor air purifiers could probably be found with the same specs, but they won't have cool names or camo.
I do think it's obvious that a lot of the positives attributed to the ozone generators for hunting are coincidental to other practices adopted in conjunction with the generator. If you're starting out with clean, scent-free clothes that you keep in a scent tight container and put them on/off after you get out of the truck, you can't really say whether it was the ozone that worked or not.
