ASME code compliant hyperbaric chambers are hard-shell pressure vessels engineered and documented to American Society of Mechanical Engineers (ASME) standards for pressure equipment, the same family of codes used for industrial and medical-grade pressure vessels. When you are comparing chambers, ASME code compliance is one of the clearest signals that a chamber's hull, welds, and pressure system were built and tested to a recognized engineering standard rather than assembled to no published spec.
