Hyperbaric for Life Hard-Shell Chamber can safely reach 3.0 ATA. All chambers built after 1/1/2023 are certified to 4.0 ATA for the extra safety. Our Chambers are FDA cleared with 510K. The hyperbaric oxygen chamber is a specially designed unit in which the patient is exposed to 100% oxygen at a pressure greater than sea level. All of Hyperbaric for Life hard-shell chambers are designed, fabricated, assembled, tested, and installed in accordance with the following codes and standards.