Chamber Comparison
AHA AHA Flex 18 V2vsNewtowne C4-40
AHA
AHA Flex 18 V2
1.8
ATA
$16K
Starting
2yr
Warranty
Newtowne
C4-40
1.3
ATA
$9K
Starting
2yr
Warranty
The Bottom Line
The AHA AHA Flex 18 V2 wins on max pressure and weight, while the Newtowne C4-40 takes the edge in price and fda clearance. If max pressure is your priority, the AHA AHA Flex 18 V2 is the stronger pick.
Key Differences
AHA
1.8 ATA
Newtowne
1.3 ATA
Higher pressure enables more clinical protocols. The AHA AHA Flex 18 V2 reaches 1.8 ATA, which covers most wellness applications.
AHA
$16,000 - $22,000 (estimated)
Newtowne
$8,995 - $10,995
A significant price gap of ~44%. Consider whether the higher-priced unit's additional features justify the investment for your use case.
AHA
Not FDA Cleared
Newtowne
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.
AHA
88 lbs
Newtowne
125 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 Flex 18 V2
Medical practitioners, wellness clinics, international markets
View full details →Best for
Newtowne C4-40
Larger adults, parent+child, clinics, maximum comfort seekers
View full details →Full Specification Comparison
| Specification | AHA AHA Flex 18 V2 | Newtowne C4-40 |
|---|---|---|
| Chamber Type | Soft-Shell | Soft-Shell |
| Performance Tier | Advanced Wellness | Advanced Wellness |
| Max Pressure | 1.8 ATA★ | 1.3 ATA |
| Oxygen Delivery | ambient-air | ambient-air |
| O₂ Concentration | 21% (ambient); O2 concentrator optional | 21% (ambient) |
| Capacity | 1-person | 2-person |
| Weight | 88 lbs★ | 125 lbs |
| Interior Dimensions | 85cm diameter x 250cm length | 40in diameter x 96in length |
| Portability | portable | semi-portable |
| FDA Cleared | No | Yes (#K051759)★ |
| CE Marked | Yes★ | No |
| Made In | Austria/Slovenia | United States |
| Price | $16,000 - $22,000 (estimated) | $8,995 - $10,995★ |
| Warranty | 2 years | 2 years |
| Clinical Score | 5/10 | 5/10 |
| Brand Established | 2006 | 2001 |
| Climate Control | No | No |
| Communication System | No | No |
| Emergency Features | Safety valves, internal pressure relief | Dual zipper safety, pressure relief valve, interior/exterior controls |
AHA AHA Flex 18 V2 — Standout Features
Newtowne C4-40 — Standout Features
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