Chamber Comparison
O2Seven O2SevenvsOxygen Ark 901
O2Seven
O2Seven
Clinical Grade
1.5
ATA
—
Starting
—
Warranty
Oxygen Ark
901
Clinical Grade
1.5
ATA
$18K
Starting
1yr
Warranty
The Bottom Line
The O2Seven O2Seven and the Oxygen Ark 901 are closely matched as Clinical Grade chambers. The choice comes down to brand preference, availability, and which specific features matter most for your setup.
Who Should Buy Which?
Full Specification Comparison
| Specification | O2Seven O2Seven | Oxygen Ark 901 |
|---|---|---|
| Chamber Type | Hard-Shell Monoplace | Hard-Shell Monoplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 1.5 ATA | 1.5 ATA |
| Oxygen Delivery | mask/cannula | mask/cannula |
| O₂ Concentration | Up to 95% | Up to 95% |
| Capacity | 1-person | 1-person |
| Weight | — | 187 lbs |
| Portability | fixed-installation | fixed-installation |
| FDA Cleared | No | No |
| CE Marked | No | Yes★ |
| Made In | Japan | China |
| Price | Contact manufacturer | $18,000 - $28,000 (estimated) |
| Warranty | — | 1 year |
| Clinical Score | 3/10 | 3/10 |
| Climate Control | No | No |
| Communication System | No | No |
O2Seven O2Seven — Standout Features
Japanese safety certificationdomestic market focus
Oxygen Ark 901 — Standout Features
Larger hard-shellbudget pricing
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