Chamber Comparison
Perry Baromedical Sigma 34vsSechrist Industries 4100H
Perry Baromedical
Sigma 34
3
ATA
$50K
Starting
1yr
Warranty
Sechrist Industries
4100H
3
ATA
$90K
Starting
1yr
Warranty
The Bottom Line
The Perry Baromedical Sigma 34 has clear advantages in price and weight. However, both chambers sit in the Clinical Grade tier, so consider your specific requirements before deciding.
Key Differences
Perry Baromedical
$50,000 - $90,000
Sechrist Industries
$90,000 - $140,000
A significant price gap of ~44%. Consider whether the higher-priced unit's additional features justify the investment for your use case.
Perry Baromedical
2,200 lbs
Sechrist Industries
3,000 lbs
Weight matters for portability and installation. Lighter chambers are easier to move between rooms or take to a second location.
Who Should Buy Which?
Best for
Perry Baromedical Sigma 34
Hospitals, wound care centers, clinical HBOT programs
View full details →Best for
Sechrist Industries 4100H
Bariatric patients, claustrophobic patients, maximum comfort clinical programs
View full details →Full Specification Comparison
| Specification | Perry Baromedical Sigma 34 | Sechrist Industries 4100H |
|---|---|---|
| Chamber Type | Hard-Shell Monoplace | Hard-Shell Monoplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 3 ATA | 3 ATA |
| Oxygen Delivery | 100%-medical-grade | 100%-medical-grade |
| O₂ Concentration | 100% via BIBS with Duke hoods | 100% oxygen environment (entire chamber pressurized with O2) |
| Capacity | 1-person | 1-person |
| Weight | 2,200 lbs★ | 3,000 lbs |
| Interior Dimensions | 33.5in diameter | 41in diameter (world's largest monoplace alongside Perry Sigma 40) |
| Portability | fixed-installation | fixed-installation |
| FDA Cleared | Yes (#Multiple 510(k)s) | Yes (#K140559) |
| CE Marked | Yes | Yes |
| Made In | United States | United States |
| Price | $50,000 - $90,000★ | $90,000 - $140,000 |
| Warranty | 1 year | 1 year |
| Clinical Score | 9/10 | 9/10 |
| Brand Established | 1956 | 1973 |
| Climate Control | Yes | Yes |
| Communication System | Yes | Yes |
| Emergency Features | Emergency depressurization, fire suppression, BIBS system, multiple safety interlocks | Dual emergency vent system, fire suppression, safety interlocks |
Perry Baromedical Sigma 34 — Standout Features
Sechrist Industries 4100H — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
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