This one's for you if you've been comparing hyperbaric chambers online and gotten stuck on the ATA number — three chambers that look almost identical, one labeled 1.3, another 1.5, another 2.0, with wildly different price tags, and no clear idea what the difference actually means for you.

You'll get a straightforward explanation of ATA (absolute atmosphere — a measure of pressure, with 1.0 ATA being what you already breathe at sea level) and why the biggest misconception in the space is assuming higher pressure automatically means a better session. It doesn't — the right pressure depends on why you're using the chamber, the protocol, how oxygen is delivered, session length, and frequency.

You'll walk through what each tier is generally suited for: 1.3 ATA as the entry point for softshell, portable, home-use chambers; 1.5 ATA as a step ...