Hyperbaric Oxygen Session Calculator
Calculate optimal hyperbaric oxygen treatment protocols. See recommended session counts, oxygen dosing, and treatment timelines for your goals.
Atmosphere absolute pressure level
Time inside the hyperbaric chamber
Your current total session count
Your reason for hyperbaric therapy
Where you are in your treatment protocol
What is hyperbaric oxygen therapy (HBOT)?
HBOT involves breathing pure oxygen in a pressurized chamber, typically at 1.5-3.0 ATA (atmospheres absolute). At higher pressure, your blood plasma can carry 10-15 times more oxygen, reaching tissues with reduced blood flow. This hyperoxygenation reduces inflammation, promotes angiogenesis (new blood vessel formation), stimulates stem cell release, and enhances mitochondrial function. HBOT is FDA-approved for conditions like decompression sickness, wounds, and carbon monoxide poisoning.
What ATA pressure should I use for anti-aging or cognitive benefits?
For longevity and cognitive benefits, 1.5-2.4 ATA is commonly used. Soft chambers (1.5 ATA) are more accessible but provide mild effects. Research shows meaningful cognitive benefits at 2.0 ATA. The Joe Dispenia protocol typically uses 2.0 ATA for 60-90 minutes. Athletes often use 1.5-2.0 ATA. For serious medical conditions, 2.4+ ATA under medical supervision is recommended.
How many HBOT sessions do I need to see benefits?
Acute benefits (reduced inflammation, improved sleep) may occur after 3-5 sessions. Visible wound healing typically shows after 10-20 sessions. Cognitive improvements often appear around 15-25 sessions. For anti-aging and longevity, 40-60+ sessions are commonly used in protocols like Bryan Johnson's. The key is consistency—spaced protocols (3-5 times per week) are more effective than sporadic sessions. Some people continue maintenance 1-2x weekly long-term.
What are the risks and side effects of HBOT?
HBOT is generally very safe when properly used. Common temporary side effects include: ear/barotrauma (popping), fatigue (Herxheimer reaction as toxins clear), temporary myopia (reversible), and claustrophobia. Rare risks include oxygen toxicity (seizures at very high pressures) and fire (pure oxygen is flammable). Contraindications: untreated pneumothorax, certain chemotherapy drugs, some heart medications. Always consult a doctor before starting HBOT, especially with medical conditions.
Can I do HBOT at home with a soft chamber?
Soft chambers (mild hyperbaric) operating at 1.3-1.5 ATA are legal for home use without prescription in many countries. These provide modest benefits compared to medical-grade chambers. True medical HBOT at 2.0+ ATA requires a prescription and proper medical supervision. Bryan Johnson uses both soft chambers at home and medical-grade sessions at clinics. For serious health goals, a combination approach with medical-grade sessions is often recommended.