This one's for you if you've ever wondered whether you're sitting inside pure oxygen in a hyperbaric chamber — or just normal air, and if so, how you're getting more oxygen at all. It's one of the most misunderstood parts of hyperbaric therapy, and this episode breaks it down simply.

The key idea: pressure and oxygen delivery are two separate things, and they don't automatically go together. Some chambers — traditional clinical monoplace systems — pressurize the entire chamber with medical-grade oxygen, so you breathe the chamber environment directly. Many larger, multi-person chambers work differently: the chamber is pressurized with regular air, while you receive oxygen separately through a mask, hood, or dedicated breathing system (BIBS — Built-In Breathing System).

This distinction matters because high oxygen concentrations requir ...