ATA stands for atmospheres absolute, a unit used to measure pressure.
1.0 ATA = normal atmospheric pressure at sea level
1.5 ATA = 50% higher pressure than normal air pressure
In mHBOT systems, 1.5 ATA represents a moderate and well-balanced pressure level that enhances the oxygen-enriched environment while maintaining comfort and accessibility.
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One of the main reasons 1.5 ATA is so popular is its balance.
At this level, users experience:
Gentle pressurization
Comfortable ear equalization
Relaxed breathing environment
Minimal adaptation time
Compared with higher pressures, 1.5 ATA feels significantly more approachable, especially for first-time users or daily wellness routines.
Today, most mild hyperbaric systems used in:
wellness centers
recovery studios
fitness clubs
spas and hotels
home wellness spaces
operate within the 1.3–1.5 ATA range, with 1.5 ATA being the most common configuration.
This consistency makes it easier for operators to:
standardize user experience
train staff efficiently
scale their business
ensure stable long-term operation
From an engineering and production perspective, 1.5 ATA offers several advantages:
Chambers designed for 1.5 ATA require less structural reinforcement than higher-pressure systems, resulting in:
lighter construction
lower material stress
improved durability
Lower pressure reduces mechanical load and simplifies safety system design, making 1.5 ATA suitable for daily use environments.
Compared with higher-pressure or clinical-grade systems, 1.5 ATA models:
cost less to produce
are easier to transport
reduce installation complexity
This makes them more accessible to a wider range of customers.
Most mHBOT systems operating at 1.5 ATA use oxygen-enriched air inside the chamber, rather than delivering pure medical oxygen through masks.
This approach allows:
even oxygen distribution
comfortable natural breathing
simplified system design
non-medical classification in many markets
It also supports a relaxed user experience suitable for wellness and recovery settings.
mHBOT at 1.5 ATA is widely chosen because it fits naturally into modern wellness concepts:
daily recovery routines
relaxation sessions
post-exercise recovery environments
longevity and lifestyle programs
Its moderate pressure level supports repeat use without complex supervision requirements.
From a business perspective, 1.5 ATA systems offer strong advantages:
Lower upfront investment
Easier regulatory positioning
Faster installation
Broader target customer base
Flexible commercial applications
These factors explain why many wellness brands choose 1.5 ATA as their entry point into hyperbaric technology.
1.5 ATA is popular because it delivers balance.
✔ Strong pressurization effect without excessive intensity
✔ Comfortable and approachable for users
✔ Suitable for wellness-focused environments
✔ Easier to manufacture and operate
✔ Widely accepted across global markets
For businesses and users seeking a practical, scalable, and user-friendly solution, 1.5 ATA remains the most widely adopted pressure level in the mHBOT industry.
This content is for informational purposes only. Mild hyperbaric oxygen systems are not intended to diagnose, treat, cure, or prevent any disease and are not classified as clinical hyperbaric oxygen therapy.