Why 1.5 ATA? Understanding the Most Common Pressure for Mild Hyperbaric Therapy If you've been exploring hyperbaric therapy for recovery, wellness, or energy enhancement, you may have noticed that 1.5 ATA is the most commonly recommended pressure for mild hyperbaric treatment. A hyperbaric oxygen chamber 1.5 ata is widely used in the USA for both personal and professional applications, from athletic recovery to general wellness routines. In my experience, understanding why...