Become a Certified Altitude Therapist™

Certified Altitude Therapist™ (CAT™) — a certification in Intermittent Hypoxic-Hyperoxic Training (IHHT) and altitude therapy. Become the practitioner whose clients say, "you're the first person who actually understood what was wrong with me." Master the science of IHHT, earn your professional credential, and step into work that finally feels meaningful again.

The Role of Oxygen in Life

Understand why oxygen is the foundation of human health and cellular energy.

• ATP & Cellular Energy Production
• How Cells Use Oxygen
• The Krebs Cycle Simplified
• Why Oxygen Efficiency Matters

Oxygen's Journey Through the Body

Follow oxygen from inhale to exhale — and how the Bohr Effect governs delivery to tissues.

• From Lungs to Bloodstream
• Hemoglobin & Oxygen Binding
• The Bohr Effect — How CO₂ Unlocks O₂ Delivery
• Gas Exchange at the Cellular Level
• Why Breathing More ≠ More Oxygen

Oxygen & Your Organs

Discover how oxygen impacts the brain, heart, metabolism, and overall vitality.

• Brain Function & Cognitive Performance
• Heart Health & Cardiovascular Efficiency
• Metabolic Health & Fat Oxidation
• Immune Function & Recovery

What Your Cells Tell Us

Dive into mitochondrial function, oxidative stress, and cellular resilience.

• Mitochondria — Your Cellular Power Plants
• Oxidative Stress & Free Radicals
• The HIF-1α Pathway
• Cellular Adaptation & Hormesis

Oxygen Sensing & HIF-1α Science

Explore how the body detects and responds to oxygen changes — from mitophagy and angiogenesis to the HIF-1α cascade, EPO production, and how IHHT leverages these pathways.

• Mitophagy — Cellular Cleanup & Mitochondrial Renewal
• Angiogenesis — New Blood Vessel Formation
• EPO & Red Blood Cell Production
• Nitric Oxide & Vascular Health
• Autophagy — The Broader Cellular Self-Cleaning System
• The Oxygen Paradox: How Low Oxygen Triggers Healing
• The HIF Cascade: Autophagy, EPO & Angiogenesis
• IHHT vs Other Oxygen Therapies
• Breathwork & Breath Holds vs. IHHT

Functional Breathing

Master the science and practice of breathing for health, performance, and recovery.

• Nasal vs. Mouth Breathing — Why It Matters
• The 3 Dimensions: Biochemical, Biomechanical & Psychophysiological
• Breathing Pattern Assessment
• Breathing Exercises Library — Practical Protocols

BOLT Score & CO₂ Tolerance

Learn to measure and improve oxygen efficiency using the BOLT assessment.

• What Is the BOLT Score?
• CO₂ Tolerance & Why It Matters
• Improving Your BOLT Over Time
• Using BOLT as a Client Metric

Autonomic Nervous System & Breathing

Understand the vagus nerve, HRV, and how breathing regulates your nervous system.

• Sympathetic vs. Parasympathetic Balance
• The Vagus Nerve & Breathing
• Heart Rate Variability (HRV) Connection
• Breathwork for Stress & Recovery

Sleep & Breathing

Explore the critical link between breathing patterns and restorative sleep.

• Sleep-Disordered Breathing Overview
• Mouth Taping — Science & Practice
• Optimal Breathing for Sleep Quality
• Screening Clients for Sleep Issues

VO₂ Max Mastery: Oxygen Throughput & Efficiency

Master VO₂ max as a vital sign — from field testing and training levers to real-world case labs.

• VO₂ Max Basics: What It Is and Why It Matters
• How VO₂ Max Works: The Oxygen Pathway and Bottlenecks
• Measuring VO₂ Max: Simple Tests and Baselines
• Improving VO₂ Max: Training That Moves the Number
• VO₂ Max and Metabolism: Fat Burning and Weight Loss
• IHHT & VO₂ Max: How Altitude Training Helps

Professional Standards & Best Practices

Build your professional foundation — from understanding your scope of practice and ethical guidelines to knowing when to refer and planning your career growth.

• Understanding Your Scope of Practice
• Ethical Standards & Informed Consent
• When to Refer — Guidelines & Red Flags
• Working with Healthcare Providers
• Continuing Education & Professional Growth

Lessons

Full Curriculum

Everything You'll Learn

11 science-based modules covering oxygen biology, breathing science, and professional practice.

Part 1

Oxygen & Cell Science

Build your foundation in oxygen biology, delivery, and cellular function.

Part 2

Sensing, Breathing & Performance

Master oxygen sensing, functional breathing, and performance metrics.

Part 3

Professional Practice

Understand your professional role, ethical standards, and how to grow your career.

More Tracks Coming

Additional Certifications Coming Soon

Expand your credentials with COPS™, CHT™, CBS™, and CVS™ tracks.

Confidently explain IHHT science to clients and patients

Add a premium wellness service with meaningful new revenue potential

Display a professional Certified Altitude Therapist™ (CAT™) credential

Screen clients for safety and design personalized protocols

Master functional breathing, BOLT scoring, and oxygen optimization

Stand out from competitors with science-backed expertise

Your Transformation

What You'll Walk Away With

This isn't just education — it's a competitive advantage for your career and business.

Trusted Worldwide

The Numbers Speak for Themselves

Core Modules

In-Depth Lessons

Online & Self-Paced

Certification Validity

Simple Pricing

Simple, One-Time Pricing

Most wellness certifications gate knowledge behind premium price tags. We believe professional oxygen science education should be accessible to every practitioner.

Certified Altitude Therapist™

Individual CAT™ certification for wellness, fitness & clinical professionals

$247

One-time payment · Includes T-shirt

Have an access code?

How long does the certification take?

The program is self-paced. Most professionals complete it in 2-4 weeks, depending on their schedule.

Does the certification expire?

No — your Certified Altitude Therapist™ (CAT™) credential is valid for life. No renewal fees or retesting required.

What if I don't pass a quiz?

You can retake any module quiz or the final exam as many times as needed. We want you to succeed.

Do you offer access codes?

Yes — partners and group purchasers can be issued unique access codes that unlock the full certification program. Contact us for partnership details.

Is this a medically accredited certification?

This is a professional training certification from O₂ Pro Academy. While not a medical degree, it demonstrates expertise in IHHT science, safety protocols, and practical application — recognized by facilities worldwide.

Can I use this certification to market my business?

Absolutely. Upon completion, you'll receive a Certified Altitude Therapist™ badge, a shareable certificate link, and permission to market yourself as a CAT™ certified practitioner.

What format are the lessons?

Lessons include a mix of video content, written guides with diagrams, downloadable PDFs, and knowledge-check quizzes at the end of each module.

Do I need any prerequisites or medical background?

No prerequisites are needed. The program is designed for professionals of all backgrounds — from doctors to personal trainers to wellness enthusiasts. The science modules start from fundamentals.

Is there a refund policy?

Yes. If you're not satisfied within 14 days of purchase, contact us for a full refund — no questions asked.

How do I receive my certificate?

Upon passing the final assessment, you'll receive a downloadable PDF certificate and a unique shareable verification link you can add to your website, LinkedIn, or business materials.

Common Questions

Frequently Asked Questions

Ready to Become a Certified Altitude Therapist™?

CAT™ enrollment is open now. Start your certification today.

Self-paced · Lifetime access · No prerequisites required

Your Credential

A Certificate Worth Displaying

Every graduate receives a professionally designed certificate with a unique verification ID.

Start With Our Free BOLT Score Mini-Module

Not ready to commit? Experience the quality of our training with a full module on the BOLT Score — the 60-second breath-hold test that reveals CO₂ tolerance — complete with audio narration, knowledge checks, and case labs.

BOLT Score Mastery: The CO₂ Tolerance Vital Sign

Full module · Audio · Knowledge checks · Case labs

No credit card required.