Chamber Comparison
Perry Baromedical Sigma 34vsO2 Heaven Duo Premium
Perry Baromedical
Sigma 34
3
ATA
$50,000 - $90,000
Starting
1yr
Warranty
O2 Heaven
Duo Premium
1.5
ATA
Contact manufacturer
Starting
1yr
Warranty
The Bottom Line
The Perry Baromedical Sigma 34 has clear advantages in max pressure and fda clearance. However, both chambers sit in the Clinical Grade tier, so consider your specific requirements before deciding.
Key Differences
Perry Baromedical
3 ATA
O2 Heaven
1.5 ATA
Higher pressure enables more clinical protocols. The Perry Baromedical Sigma 34 reaches 3 ATA, which supports FDA-approved treatment protocols.
Perry Baromedical
FDA cleared: yes
O2 Heaven
FDA no
The listing's fda_cleared field. This page does not add a purchase rule.
Perry Baromedical
hard-shell monoplace
O2 Heaven
hard-shell multiplace
Hard-shell chambers generally offer higher pressures and more clinical features, while soft-shell chambers are more portable and affordable.
Who Should Buy Which?
Best for
Perry Baromedical Sigma 34
Hospitals, wound care centers, clinical HBOT programs
View full details →Full Specification Comparison
| Specification | | |
|---|---|---|
| Chamber Type | Hard-Shell Monoplace | Hard-Shell Multiplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 3 ATA★ | 1.5 ATA |
| Oxygen Delivery | 100%-medical-grade | mask/cannula |
| O₂ Concentration | 100% via BIBS with Duke hoods | Up to 95% |
| Capacity | 1-person | 2-person |
| Weight | 2,200 lbs | — |
| Interior Dimensions | 33.5in diameter | — |
| Portability | fixed-installation | fixed-installation |
| FDA Cleared | Yes (#Multiple 510(k)s)★ | No |
| CE Marked | Yes★ | No |
| Made In | United States | Turkey |
| Price | $50,000 - $90,000 | Contact manufacturer |
| Warranty | 1 year | 1 year |
| Brand Established | 1956 | — |
| Climate Control | Yes★ | No |
| Communication System | Yes★ | No |
| Emergency Features | Emergency depressurization, fire suppression, BIBS system, multiple safety interlocks | — |
Perry Baromedical Sigma 34 — Standout Features
O2 Heaven Duo Premium — Standout Features
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