Chamber Comparison
Perry Baromedical Sigma 40vsSechrist Industries 4100H
Perry Baromedical
Sigma 40
3
ATA
$65K
Starting
1yr
Warranty
Sechrist Industries
4100H
3
ATA
$90K
Starting
1yr
Warranty
The Bottom Line
The Perry Baromedical Sigma 40 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
$65,000 - $110,000
Sechrist Industries
$90,000 - $140,000
A ~28% price difference. At this range, the decision likely comes down to features and certifications rather than cost alone.
Perry Baromedical
2,850 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 40
Bariatric patients, claustrophobic patients, maximum comfort, flagship clinical 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 40 | 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 | 2,850 lbs★ | 3,000 lbs |
| Interior Dimensions | 40.5in diameter (largest monoplace available) | 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 | $65,000 - $110,000★ | $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 40 — Standout Features
Sechrist Industries 4100H — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
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