Right out of the box the Ozone LED indicator does not function. I can smell the ozone, but it would be nice (and safe) if the light came on when the ozone generator is turned on. I notified the company and at their request sent a video. They sent an email suggesting I turn on the ion generator and ozone generator at the exact same time. I did that and had the same result...no LED indicator light. This is potentially dangerous if someone other than I turn on the ozone generator without knowing it’s on. I’m waiting for the company to respond.