Chamber Comparison
O2Seven O2SevenvsOxyHealth Fortius 420
O2Seven
O2Seven
1.5
ATA
—
Starting
—
Warranty
OxyHealth
Fortius 420
3
ATA
$82K
Starting
5yr
Warranty
The Bottom Line
The OxyHealth Fortius 420 has clear advantages in max pressure, fda clearance, and clinical credibility. However, both chambers sit in the Clinical Grade tier, so consider your specific requirements before deciding.
Key Differences
O2Seven
1.5 ATA
OxyHealth
3 ATA
Higher pressure enables more clinical protocols. The OxyHealth Fortius 420 reaches 3 ATA, which supports FDA-approved treatment protocols.
O2Seven
Not FDA Cleared
OxyHealth
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.
O2Seven
3/10
OxyHealth
7/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
Who Should Buy Which?
Best for
OxyHealth Fortius 420
Clinical HBOT centers, high-performance athletic facilities, medical research, advanced protocols
View full details →Full Specification Comparison
| Specification | O2Seven O2Seven | OxyHealth Fortius 420 |
|---|---|---|
| Chamber Type | Hard-Shell Monoplace | Hard-Shell Monoplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 1.5 ATA | 3 ATA★ |
| Oxygen Delivery | mask/cannula | 100%-medical-grade |
| O₂ Concentration | Up to 95% | 95-100% via hood assembly |
| Capacity | 1-person | 2-person |
| Weight | — | 1,100 lbs |
| Interior Dimensions | — | 64-96in L x 42in dia (modular 2 or 3 piece) |
| Portability | fixed-installation | fixed-installation |
| FDA Cleared | No | Yes (#K041007)★ |
| CE Marked | No | No |
| Made In | Japan | United States |
| Price | Contact manufacturer | $82,000 - $150,000 |
| Warranty | — | 5 years |
| Clinical Score | 3/10 | 7/10★ |
| Brand Established | — | 1996 |
| Climate Control | No | No |
| Communication System | No | Yes★ |
| Emergency Features | — | Mirrored controls inside/out, emergency protocols, safety redundancy |
O2Seven O2Seven — Standout Features
OxyHealth Fortius 420 — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
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