ATA (atmospheres absolute) is the unit used to describe how much pressure a hyperbaric chamber reaches during a session.
ATA refers to atmospheres of pressure the chamber reaches. 1.0 ATA is normal sea-level pressure; a chamber rated at 1.3 ATA pressurizes 30% above that baseline.
Soft-shell home chambers on our site commonly range from 1.3 to 1.5 ATA. Hard-shell chambers reach higher, typically 1.5 to 2.5 ATA, with some models offering selectable pressure levels.
Higher-ATA chambers are typically hard shell, cost more, and require a more substantial room installation. The right pressure level depends on the specific chamber and your goals — this is an equipment question, not a medical recommendation.
Confirm the exact pressure rating and any selectable settings for your specific model with Sharon before purchase, and follow manufacturer operating instructions exactly.
