Adam, > I was under the impression that ozone was odorless, though I could be wrong. Ozone does indeed have a most noticible odor. It smells like, ... er, aaah, like ozone! Guess you need to get a good sniff (but not a steady diet!) of it from someone's TC, your TV's HV wired to a needle point, etc, to imprint the oder in your brain. --Steve