Hyperbaric oxygen therapy comes up constantly in recovery marketing, so it is worth being precise about it, because HBOT is simultaneously real, evidence-backed medicine and one of the most oversold wellness products on the market. Both things are true, and the difference is the condition being treated.
The FDA maintains a list of cleared indications for hyperbaric oxygen. It includes conditions such as carbon monoxide poisoning, decompression sickness, gas embolism, gas gangrene, crush injury, compromised skin grafts and flaps, refractory osteomyelitis, delayed radiation injury, and non-healing wounds including diabetic foot ulcers. For those, hyperbaric medicine is a genuine hospital treatment, delivered under supervision, and typically covered by insurance including Medicare when the indication qualifies.
"Recovering from surgery" is not on that list. Neither is general wellness, energy, longevity or athletic recovery. Harvard Health's review of the field is titled, plainly, *"Evidence-based uses and unproven claims"* — and the unproven column is long.
There is also a hardware distinction worth understanding. The chambers used for cleared indications are rigid, hospital-grade, and pressurised well above atmospheric. The soft-shell chambers sold for home use operate at much lower pressure, and FDA clearance for those is on the basis of being pressurised with ambient air, not the high-concentration oxygen protocols the clinical evidence is built on. A home soft chamber is therefore not a small version of the hospital treatment; it is a different thing at a different pressure with different evidence behind it.