Oxygen Advantage Instructor Certification Review (2026)

An honest review of the Oxygen Advantage instructor certification by Patrick McKeown. We cover the affordable pricing, Buteyko roots, BOLT score controversy, and why this is the most practical breathwork certification for sports and healthcare professionals.

Patrick McKeown had severe asthma for most of his life. At 26, he discovered the Buteyko method and got off his inhalers within weeks. He went to Moscow to train with Dr. Konstantin Buteyko himself, came back, and built Oxygen Advantage on top of those principles. The core idea: most people breathe too much. Breathe less, breathe through your nose, build CO2 tolerance, and your health and performance improve.

This is the opposite of every other breathwork method on this site. No hyperventilation. No altered states. No spiritual framework. Just functional breathing mechanics backed by a growing body of research. If you come from a sports, physiotherapy, or clinical background, this will feel immediately familiar.

Oxygen Advantage Pros and Cons

What the Oxygen Advantage Certification Covers

Oxygen Advantage teaches the opposite of what most breathwork methods teach. Instead of breathing more, you learn to breathe less.

Nasal breathing is the foundation. Mouth breathing dries the airways, bypasses nitric oxide production in the sinuses, and creates chronic over-breathing. McKeown is evangelical about this, and the research backs him up. Nasal breathing filters, warms, and humidifies air, and the nitric oxide produced in the sinuses acts as a bronchodilator and vasodilator.

CO2 tolerance is the core training principle. Most people have low tolerance for carbon dioxide, which triggers the urge to breathe sooner than necessary. Oxygen Advantage uses breath holds after exhalation to train the body to tolerate higher CO2 levels. This delays the breathing reflex, increases oxygen delivery to tissues via the Bohr effect, and improves exercise economy.

The BOLT score (Body Oxygen Level Test) is Oxygen Advantage’s signature diagnostic. Take a normal breath in, normal breath out through your nose, pinch your nose, and count the seconds until you feel the first urge to breathe. Below 25 seconds indicates dysfunctional breathing. The goal is 40+ seconds. It gives clients a number to work with, which is powerful for engagement.

Simulation of altitude training is the advanced component. Extended breath holds during exercise create intermittent hypoxic conditions, mimicking altitude training effects without a mountain. Increased red blood cell production, improved oxygen-carrying capacity, better anaerobic threshold.

No music. No mandalas. No emotional release. Just breathing mechanics.

The Oxygen Advantage BOLT Score Problem

The BOLT score is Oxygen Advantage’s greatest marketing asset and its biggest scientific vulnerability.

A 2024 peer-reviewed study in Frontiers in Physiology tested BOLT against actual exercise performance in 49 speedskaters. They measured it against Wingate anaerobic tests and VO2max tests on a cycle ergometer. Result: no significant correlations between BOLT scores and any performance parameter.

The authors recommended interpreting BOLT scores “with a great degree of caution” in trained populations.

This doesn’t kill the method. Nasal breathing and CO2 tolerance training have solid research behind them independent of the BOLT score. But it means Oxygen Advantage’s central diagnostic tool may not measure what it claims to measure. For a certification that prides itself on scientific rigor, this is a real gap.

McKeown would likely argue that BOLT is a screening tool for dysfunctional breathing, not a performance predictor. That’s a fair point. But the marketing doesn’t always make that distinction.

Oxygen Advantage Certification Levels and Cost

Two levels, both affordable by breathwork standards.

Level 1: Functional Breathing Instructor ($449)

Entirely self-paced online. Around 100 hours of tutorials, videos, and self-study. You cover nasal breathing, diaphragmatic mechanics, the BOLT assessment, and functional breathing exercises for rest and physical activity. Finish with an exam and case studies. Most people complete it in 1-3 months.

Level 2: Advanced Instructor ($1,350 in-person / $700 upgrade)

Adds altitude simulation techniques (intermittent hypoxic and hypercapnic training). Includes 14 hours of live Zoom classes with McKeown or 3-day in-person intensives in locations like Galway, Malaga, Denver, or NYC. This is where you learn the performance-focused protocols that differentiate Oxygen Advantage from basic Buteyko.

Total investment: $449-$1,350

No annual licensing fees. No recurring subscriptions. No recertification requirements. You pay once and use the Oxygen Advantage name in your business. Compare that to the Wim Hof Method’s ~€499 yearly licensing fee or SOMA Breath’s constant upsell ecosystem.

Oxygen Advantage vs. Buteyko: What’s the Difference?

Oxygen Advantage is built on Buteyko. Patrick McKeown is Director of Education at Buteyko Clinic International. He trained with Buteyko’s students in Moscow. The core principles (reduced breathing, nasal breathing, CO2 tolerance) are pure Buteyko.

So what did McKeown add?

Mainly the sports performance angle. Classical Buteyko was developed for asthma and respiratory conditions. McKeown took those principles and applied them to athletic training, adding the altitude simulation protocols and the BOLT scoring system. He also modernized the packaging. Buteyko has an image problem in the West (Soviet-era origins, limited English-language training). Oxygen Advantage wraps the same core science in better branding and a more accessible training format.

If you already have a Buteyko certification, the Oxygen Advantage add-on may not be worth it. If you’re choosing between the two, Oxygen Advantage is the more modern, better-marketed path to essentially the same underlying method, with a sports performance layer on top.

Building a Business as an Oxygen Advantage Instructor

Oxygen Advantage sits in a sweet spot. Low cost of entry. No ongoing fees. Clear target markets.

Who hires Oxygen Advantage instructors:

• CrossFit boxes and sports facilities wanting breathing optimization
• Physiotherapy and sports rehab clinics
• Dental practices (mouth breathing correction)
• ENT clinics (nasal breathing protocols)
• Corporate wellness programs
• Running clubs and endurance sports groups

Pricing your services:

• Group classes: $20-50 per person
• Private sessions: $80-150/hour
• Workshop packages for sports teams: $500-2,000
• Clinic integration: bill through existing practice

The clinical credibility is the real asset. Physios and dentists can integrate Oxygen Advantage into their existing billing structures. You’re not asking people to come to a “breathwork class.” You’re offering breathing assessment and correction within a framework they already understand.

Oxygen Advantage doesn’t give you a marketing playbook or business toolkit like SOMA does. But the low cost of entry means your breakeven point is much lower. A few private clients cover your entire certification investment.

Market Comparisons

Oxygen Advantage vs. Wim Hof Method

The comparison people make most, but these are different animals. Wim Hof Method combines breathing with cold exposure and mindset training. It’s a lifestyle transformation method. Wim Hof talks about inner fire, pushing past limits, changing your relationship to discomfort. The breathing is just one pillar of a bigger philosophy.

Oxygen Advantage is purely technical. No cold exposure, no mindset coaching, no transformation narrative. Just better breathing mechanics. Wim Hof Method uses hyperventilation. Oxygen Advantage treats hyperventilation as a problem to fix.

Choose Wim Hof Method if you want to guide people through physical and mental challenges and build a brand around transformation. Choose Oxygen Advantage if you want measurable breathing improvement protocols that work in clinical and sports settings. For the full breakdown, read our Wim Hof Method instructor training review.

Oxygen Advantage vs. SOMA Breath

SOMA is rhythm, music, and brainwave entrainment. It’s a group experience designed to feel good. Oxygen Advantage is individual assessment and progressive breathing correction designed to work. Completely different vibes, completely different clients.

Choose SOMA if you want to lead high-energy group sessions. Choose Oxygen Advantage if you want to work with athletes and health professionals. See our SOMA Breath teacher training review for the full comparison.

Oxygen Advantage vs. Buteyko

Same family. Oxygen Advantage is essentially Buteyko with a sports performance layer, modern branding, and the BOLT assessment tool. Classical Buteyko certifications (ButeykoClinic, AdvancedButeyko) tend to focus more on asthma and respiratory conditions. Oxygen Advantage focuses on performance.

Choose Buteyko if you work in respiratory healthcare. Choose Oxygen Advantage if your clients are athletes, coaches, or general wellness seekers.

Oxygen Advantage Certification: Final Verdict

Oxygen Advantage is the most practical breathwork certification available. Low cost, self-paced, no ongoing fees, and built on real physiology. If you work in sports, healthcare, or fitness, the techniques integrate seamlessly into what you already do.

The BOLT score controversy is worth watching. The core method works, but its signature assessment tool hasn’t held up under independent testing. That’s a gap Patrick McKeown will need to address.

For everyone else, the lack of any experiential or spiritual dimension is a feature or a dealbreaker depending on what you’re building. Oxygen Advantage won’t help you run breathwork journeys or retreat experiences. It will help you fix people’s breathing.

Bottom line: Best value certification in breathwork. Ideal for sports and healthcare. Just don’t oversell the BOLT score.

Still unsure? Check our comparison of 20+ breathwork certifications.