1.3 ATA vs. 1.5 ATA Hyperbaric Pressure
1.3 ATA and 1.5 ATA are both mild hyperbaric pressures, with 1.5 ATA representing a modestly higher pressure than 1.3 ATA. The difference affects how much oxygen dissolves into the body's fluids during a session. OxyEdge hard-shell chambers can reach up to 2.0 ATA, giving users flexibility to work at these mild settings and beyond.
1.3 ATA vs. 1.5 ATA
- Pressure above sea level: 1.3 ATA: 0.3 ATA above 1.0 — 1.5 ATA: 0.5 ATA above 1.0
- Approximate gauge pressure: 1.3 ATA: About 4.4 psi above ambient — 1.5 ATA: About 7.4 psi above ambient
- Category: 1.3 ATA: Mild hyperbaric range — 1.5 ATA: Mild hyperbaric range
- Dissolved oxygen effect: 1.3 ATA: Lower than 1.5 ATA — 1.5 ATA: Higher than 1.3 ATA
- Equalization demand: 1.3 ATA: Gentle for new users — 1.5 ATA: Slightly more equalization needed
- Session comfort: 1.3 ATA: Very gentle entry point — 1.5 ATA: Still comfortable for most users
- OxyEdge availability: 1.3 ATA: Adjustable on OxyEdge chambers — 1.5 ATA: Adjustable on OxyEdge chambers
- Max pressure on OxyEdge chambers: 1.3 ATA: Up to 2.0 ATA — 1.5 ATA: Up to 2.0 ATA
Which is right for you?
- Home user: New home users often start at 1.3 ATA for gentle sessions and can move toward 1.5 ATA as they gain comfort.
- Wellness center: Offering both 1.3 and 1.5 ATA lets a wellness center tailor sessions to different client preferences.
- Medical spa: A medical spa can provide gentle 1.3 ATA sessions as an accessible entry experience.
- Athletic facility: Athletic users may prefer 1.5 ATA for a higher dissolved-oxygen environment within the mild range.
What is the difference between 1.3 ATA and 1.5 ATA?
1.3 ATA is 0.3 atmospheres above sea-level pressure, while 1.5 ATA is 0.5 atmospheres above. Both fall within the mild hyperbaric range.
The higher the ATA, the more oxygen can dissolve into the body's plasma during a session, so 1.5 ATA delivers a somewhat greater effect than 1.3 ATA.
How does pressure affect the session experience?
At 1.3 ATA, equalization of the ears and sinuses is very gentle, making it a comfortable entry point for new users. At 1.5 ATA the pressure change is slightly greater.
Both pressures are considered comfortable for most people when pressurization is gradual, as it is on OxyEdge chambers.
Which pressure should you choose?
Many users begin at 1.3 ATA and adjust upward as they become accustomed to the sensation. OxyEdge chambers allow the operator to set the target pressure.
Because OxyEdge hard-shell chambers reach up to 2.0 ATA, both 1.3 and 1.5 ATA are available on the same equipment.
Frequently Asked Questions
Is 1.5 ATA better than 1.3 ATA?
Neither is universally better. 1.5 ATA allows more oxygen to dissolve into the body's fluids, while 1.3 ATA is a gentler entry point. The right choice depends on user preference and comfort.
Can one OxyEdge chamber do both pressures?
Yes. OxyEdge hard-shell chambers are adjustable and reach up to 2.0 ATA, so 1.3 and 1.5 ATA are both available on the same unit.
Is 1.3 ATA good for beginners?
1.3 ATA is a gentle setting often used as a comfortable starting point because equalization demand is low.