What Are Ozone & Oxygen Therapies?
A screening-first map of ozone therapy, MAH, EBOO, EWOT, and medical hyperbaric oxygen therapy—including major differences in route, pressure, evidence, regulation, and risk.
Overview
Ozone and oxygen therapies are not one treatment family in a medical sense. They use different gases, routes, pressures, equipment, and evidence standards. Medical oxygen (O₂) may be delivered at normal pressure or inside a hyperbaric chamber. Ozone (O₃) is a reactive oxidant that is toxic when inhaled.
Oxygen-based methods
- HBOT: 100% oxygen in a chamber above normal atmospheric pressure. FDA-cleared devices and established medical indications exist, including decompression illness, carbon monoxide poisoning, selected nonhealing diabetic wounds, and radiation tissue injury.
- Mild hyperbaric wellness chambers: often lower-pressure soft chambers; these are not equivalent to medical HBOT for established indications.
- EWOT: exercise with oxygen-enriched gas at normal pressure. It is not HBOT.
Ozone-based methods
- MAH: a limited blood volume is exposed to oxygen–ozone outside the body and reinfused.
- EBOO: blood circulates through a continuous extracorporeal circuit; it is more invasive than MAH.
- Topical or insufflation methods: route-specific procedures with different evidence and risks.
Ozone therapy and EBOO are not FDA-approved to treat disease in the U.S. Ozone must not be inhaled or injected directly as gas into a vein. Evidence should be assessed for the exact method and indication—not transferred from HBOT, laboratory ozone research, or generic “oxygenation” claims.
Benefits
Clarifies which methods use oxygen versus ozone
Separates normal-pressure exercise from chamber-based HBOT
Distinguishes limited-volume MAH from continuous-circuit EBOO
Centers evidence on the exact method and indication
Highlights device, fire, pressure, vascular-access, and gas-route safety
The Procedure
1
Name the exact method
2
Match evidence to the indication
3
Screen route-specific risks
4
Set measurable goals
Preparation
Bring diagnoses, medications, oxygen prescriptions, imaging or wound records, pulmonary history, ear/sinus issues, seizure history, pregnancy status, and anticoagulants. Ask for the exact method and written protocol.
Recovery & Aftercare
Recovery ranges from none after a light EWOT session to ear pressure and fatigue after HBOT or bruising and lightheadedness after blood procedures. Follow route-specific emergency instructions.
Risks & Considerations
HBOT can cause ear/sinus barotrauma, temporary vision changes, oxygen toxicity, low blood sugar, and fire risk. EWOT adds exercise and combustion hazards. Ozone inhalation injures lungs; blood procedures add infection, bleeding, hemolysis, anticoagulation, air/gas embolism, and line risks.
Frequently Asked Questions
References
[1]
FDA Product Classification: Hyperbaric Chamber (Class II).
https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpcd/classification.cfm?ID=CBF[2]
CMS National Coverage Determination 20.29: Hyperbaric Oxygen Therapy.
https://www.cms.gov/medicare-coverage-database/view/ncd.aspx?ncdid=12[3]
Undersea and Hyperbaric Medical Society. Hyperbaric Oxygen Therapy Indications.
https://www.uhms.org/resources/featured-resources/hbo-indications.html[4]
21 CFR § 801.415. Maximum acceptable level of ozone.
https://www.ecfr.gov/current/title-21/chapter-I/subchapter-H/part-801/subpart-H/section-801.415[5]
U.S. EPA. Health effects of ozone pollution.
https://www.epa.gov/ground-level-ozone-pollution/health-effects-ozone-pollution
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