B.S. "science" - a great way to separate you from an unnecessarily large chunk of your money. Grossly overpriced.
Ozone will eliminate odors, so it's a good short term solution to nasty tobacco or rodent smells, but it doesn't fix the underlying problem. It also makes plastics so brittle they crumble, and it really isn't good for your health.
Normal O2 is stable, Ionized oxygen is O3 and breaks back down quickly. Oxygen bleach uses that same "technology" - and while they advertise that it's safer for colors, use it on your undies and it'll eat the elastic out of the waistband and one day you'll be making a speech in front of a room and... your big girl drawers will become an urban legend.
Today is a gift, that's why they call it the present.