Editing Ozone (section)

===Cold plasma===
In the cold plasma method, pure oxygen gas is exposed to a [[plasma (physics)|plasma]] created by [[dielectric barrier discharge|DBD]]. The diatomic oxygen is split into single atoms, which then recombine in triplets to form ozone.

It is common in the industry to mislabel some DBD ozone generators as CD Corona Discharge generators. Typically all solid flat metal electrode ozone generators produce ozone using the dielectric barrier discharge method. Cold plasma machines use pure oxygen as the input source and produce a maximum concentration of about 24% ozone. They produce far greater quantities of ozone in a given time compared to ultraviolet production that has about 2% efficiency. The discharges manifest as filamentary transfer of electrons (micro discharges) in a gap between two electrodes. In order to evenly distribute the micro discharges, a dielectric [[electrical insulation|insulator]] must be used to separate the metallic electrodes and to prevent arcing.