Chamber Comparison
O2Air Pro 90vsSechrist Industries 4100H
O2Air
Pro 90
2.5
ATA
—
Starting
2yr
Warranty
Sechrist Industries
4100H
3
ATA
$90K
Starting
1yr
Warranty
The Bottom Line
The O2Air Pro 90 wins on warranty, while the Sechrist Industries 4100H takes the edge in max pressure, fda clearance, and clinical credibility. If max pressure matters most, the Sechrist Industries 4100H is the better choice.
Key Differences
O2Air
2.5 ATA
Sechrist Industries
3 ATA
Higher pressure enables more clinical protocols. The Sechrist Industries 4100H reaches 3 ATA, which supports FDA-approved treatment protocols.
O2Air
Not FDA Cleared
Sechrist Industries
FDA Cleared
FDA clearance matters if you need insurance reimbursement, plan to operate a clinical facility, or want the highest safety assurance. For home wellness use, it's less critical.
O2Air
5/10
Sechrist Industries
9/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
O2Air
2 years
Sechrist Industries
1 year
A longer warranty reduces long-term ownership risk, especially important for chambers in the $10K+ range.
Who Should Buy Which?
Best for
Sechrist Industries 4100H
Bariatric patients, claustrophobic patients, maximum comfort clinical programs
View full details →Full Specification Comparison
| Specification | O2Air Pro 90 | Sechrist Industries 4100H |
|---|---|---|
| Chamber Type | Hard-Shell Monoplace | Hard-Shell Monoplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 2.5 ATA | 3 ATA★ |
| Oxygen Delivery | mask/cannula | 100%-medical-grade |
| O₂ Concentration | Up to 95% | 100% oxygen environment (entire chamber pressurized with O2) |
| Capacity | 1-person | 1-person |
| Weight | — | 3,000 lbs |
| Interior Dimensions | — | 41in diameter (world's largest monoplace alongside Perry Sigma 40) |
| Portability | fixed-installation | fixed-installation |
| FDA Cleared | No | Yes (#K140559)★ |
| CE Marked | Yes | Yes |
| Made In | Austria | United States |
| Price | Contact manufacturer | $90,000 - $140,000 |
| Warranty | 2 years★ | 1 year |
| Clinical Score | 5/10 | 9/10★ |
| Brand Established | — | 1973 |
| Climate Control | No | Yes★ |
| Communication System | No | Yes★ |
| Emergency Features | — | Dual emergency vent system, fire suppression, safety interlocks |
O2Air Pro 90 — Standout Features
Sechrist Industries 4100H — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
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