PSI (Pounds per Square Inch)
PSI is a unit of pressure equal to one pound of force applied over one square inch of area.
PSI, or pounds per square inch, is a common unit for expressing pressure in the United States. Normal atmospheric pressure at sea level is about 14.7 psi, which equals 1.0 ATA. Hyperbaric chamber pressures are often described in ATA, but psi provides an alternate way to understand the gauge pressure above ambient.
This entry is part of the OxyEdge Hyperbaric Glossary, a plain-language reference covering pressure, oxygen delivery, and chamber construction. Understanding this vocabulary makes it easier to compare specifications, evaluate safety features, and ask informed questions before purchasing equipment for a commercial wellness business or home wellness space.
Related Terms
- PMMA Acrylic
- PMMA acrylic is a strong, optically clear thermoplastic often used for viewing windows in hard-shell hyperbaric chambers.
- Stainless Steel
- Stainless steel is a corrosion-resistant metal alloy used in the structural construction of hard-shell hyperbaric chambers.
- Hard-Shell Chamber
- A hard-shell chamber is a rigid hyperbaric chamber built from solid materials such as stainless steel rather than flexible fabric.
- Multiplace Chamber
- A multiplace chamber is a hyperbaric chamber designed to hold two or more occupants at the same time.
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About OxyEdge
OxyEdge designs and supplies hard-shell mild hyperbaric chambers and recovery equipment for commercial wellness studios, gyms, performance facilities, hospitality operators, and home wellness spaces. Headquartered in Hendersonville, Tennessee, OxyEdge engineers each chamber around a pressure vessel rated for sustained operation at up to 2.0 ATA, paired with high-output oxygen concentrators, intelligent climate control, and the OxyEdge OS™ touchscreen control platform for precise session management.
Every OxyEdge chamber is backed by a Five-Year Limited Warranty and lifetime support from a US-based team. Installation is not included in product pricing and may be quoted separately. OxyEdge is bringing production of its next-generation hard-shell chambers to Tennessee. Engineering, CAD review, supplier qualification and production preparation are underway, with the first U.S.-fabricated models scheduled for production in 2026.
OxyEdge products are wellness equipment and are not intended to diagnose, treat, cure, or prevent disease. Call +1-877-417-4442 or use the contact page to speak with our team, browse the equipment lineup, or explore the Knowledge Center for plain-language education on chamber engineering, pressure levels, safety, and buying guidance.