Air purifier doing the opposite, emitting ozone?

I have an Ionic Pro, I bought it in 2005 (when i was 19) and have had it running ever since. I had asthma as a kid but think that I grew out of it (haven’t had any problems) but I’m really worried now. I’ve read that this can really damage your lungs and cause other diseases? I never really cleaned the blades (maybe 20 times over 4-5 years) so I’m hoping it doesn’t really or hasn’t really even been working, so I’m not sure. Is my risk really high for developing lung issues now? I feel short of breathe sometimes, but I do have allergies, and I exercise regularly.

Thank you very much.