Staff Answer
Jan 05, 2026 - 01:58 PM
Not all ozone generators work the same way. Many references to ozone production describe corona discharge systems, which use very high voltage (typically in the kilovolt range) across a gas-filled dielectric to generate ozone from air or oxygen. These systems produce ozone in the gas phase and then inject it or bubble it into water.
Roving Blue products use a different approach: electrolytic ozone generation. In this method, ozone is produced directly from water using low voltage and very low amperage. No air feed, oxygen feed, or dielectric discharge gap is involved. Because ozone is generated in situ in water, high voltage is not required.
Effectiveness is determined by the amount of dissolved ozone present during treatment, not by voltage alone. Independent laboratory testing (SGS and BCS Laboratories) demonstrated biological efficacy through measurable reductions of organisms such as E. coli and Salmonella. The publicly posted reports are abbreviated for general readability; full laboratory documentation is available upon request.
While future testing including initial and residual dissolved ozone concentration measurements would further strengthen the data set, dissolved ozone levels can be independently verified using standard ozone test kits. EPA CT guidance can then be used to infer expected efficacy based on concentration and contact time.
For outdoor or unknown water sources, best practice is a layered treatment approach, such as ozonating water followed by ultrafiltration to address cyst-type organisms like Giardia and Cryptosporidium.
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