I have been moving my ozone generator around.. moved it up to the kitchen a few weeks ago from the basement, where I had it full bore for most the day, with DE-humidifier, and turned it down to half way when home... When the A/C kicked on back during the heat spell, it pulled ozone up through the house and old air ducts,(Which reminds me of that Jerky boys audio skit,L0L)
With it closer to me bed I find I need to turn it down.. I would wake with very dry mouth.. 'course the ceiling fan is on in the dining room adjacent to me room and the other room ceiling fan is on to move the ozone a little, could be most cause of dryness... When I first got it it was up higher and was waking with a little nose bleed, just a little one, turned it down a bit and fine!