How can I tell when the ozone levels are too high?
A small percentage of people can be considered ozone sensitive. These people will find the smell of ozone, at any level, to be too much. The EPA and the FDA have stated that levels below 0.05 ppm are safe for humans. Again, some people will find any level of ozone approaching this level to be overpowering. Fortunately, it takes long term exposure at levels approaching 0.1ppm to cause any harm. We suggest using a timer with the BIG BLUE and then waiting an hour or so before entering your room just to be on the safe side.
