Chamber Comparison
AHA AHA Fit 18vsOxygen Ark 701
AHA
AHA Fit 18
1.8
ATA
$15K
Starting
2yr
Warranty
Oxygen Ark
701
1.4
ATA
$6K
Starting
1yr
Warranty
The Bottom Line
The AHA AHA Fit 18 wins on max pressure, clinical credibility, warranty, and weight, while the Oxygen Ark 701 takes the edge in price. If max pressure is your priority, the AHA AHA Fit 18 is the stronger pick.
Key Differences
AHA
1.8 ATA
Oxygen Ark
1.4 ATA
Higher pressure enables more clinical protocols. The AHA AHA Fit 18 reaches 1.8 ATA, which covers most wellness applications.
AHA
$15,000 - $20,000 (estimated)
Oxygen Ark
$6,000 - $9,000 (estimated)
A significant price gap of ~60%. Consider whether the higher-priced unit's additional features justify the investment for your use case.
AHA
5/10
Oxygen Ark
2/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
AHA
2 years
Oxygen Ark
1 year
A longer warranty reduces long-term ownership risk, especially important for chambers in the $10K+ range.
AHA
88 lbs
Oxygen Ark
353 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
AHA AHA Fit 18
Athletes, wellness clinics, users needing near-clinical pressure
View full details →Full Specification Comparison
| Specification | AHA AHA Fit 18 | Oxygen Ark 701 |
|---|---|---|
| Chamber Type | Soft-Shell | Soft-Shell |
| Performance Tier | Advanced Wellness | Advanced Wellness |
| Max Pressure | 1.8 ATA★ | 1.4 ATA |
| Oxygen Delivery | ambient-air | ambient-air |
| O₂ Concentration | 21% (ambient); O2 concentrator optional | 21% (ambient) |
| Capacity | 1-person | 1-person (wheelchair accessible) |
| Weight | 88 lbs★ | 353 lbs |
| Interior Dimensions | 85cm diameter x 250cm length | — |
| Portability | portable | semi-portable |
| FDA Cleared | No | No |
| CE Marked | Yes | Yes |
| Made In | Austria/Slovenia | China |
| Price | $15,000 - $20,000 (estimated) | $6,000 - $9,000 (estimated)★ |
| Warranty | 2 years★ | 1 year |
| Clinical Score | 5/10★ | 2/10 |
| Brand Established | 2006 | — |
| Climate Control | No | No |
| Communication System | No | No |
| Emergency Features | Safety valves, internal pressure relief | — |
AHA AHA Fit 18 — Standout Features
Oxygen Ark 701 — Standout Features
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