I don’t use them for multiple reasons. First is nylon and polyester (the two most common rope and saddle materials) do not handle ozone oxidation very well at all. It’s down right dangerous to introduce ozone to your saddles and ropes for any extended length of time. Interestingly polyurethane and ABS plastics do handle ozone very well though…. Dyneema, technora, and Kevlar are only mildly resistant to ozone. So yea I don’t recommend using it for your life safety gear.
My other reason is the ozone is not good for us to breathe. It alters the chemical composition of organic materials. So while it does change the air, it also affects our lungs, our odor receptors in our nose and other things inside of our bodies. There are even some scientist who argue that ozone doesn’t actually remove the odor from the surrounding air as effectively as we think, so much as it alters the olfactory sense in our noses causing our perception of odor to change.