Importance of Dry Air for Ozone Generation

The moisture level of feed-gas to a corona-discharge-based ozone generator is directly related to the ozone output. More moisture equals lower ozone output. See the chart below:

Relative Ozone Output vs. Air Dewpoint

Relative ozone output decreases as dewpoint increases.

Critical to all corona discharge ozone systems is proper air preparation. Because the presence of moisture affects ozone production and leads to the formation of nitric acid, the gas feeding the ozone generator must be very dry (minimum -60 degrees F). Nitric acid is very corrosive to critical internal parts of a corona-discharge-based ozone generator, can cause premature failure, and will increase the frequency of required maintenance. Make sure you have reliable air drying equipment.