Chamber Comparison
AHA AHA Flex 18 V2vsMacy-Pan MC4000
AHA
AHA Flex 18 V2
1.8
ATA
$16K
Starting
2yr
Warranty
Macy-Pan
MC4000
1.3
ATA
$12K
Starting
1yr
Warranty
The Bottom Line
The AHA AHA Flex 18 V2 wins on max pressure, clinical credibility, and warranty, while the Macy-Pan MC4000 takes the edge in price and weight. If max pressure is your priority, the AHA AHA Flex 18 V2 is the stronger pick.
Key Differences
AHA
1.8 ATA
Macy-Pan
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)
Macy-Pan
$12,400
A ~23% price difference. At this range, the decision likely comes down to features and certifications rather than cost alone.
AHA
5/10
Macy-Pan
4/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
AHA
2 years
Macy-Pan
1 year
A longer warranty reduces long-term ownership risk, especially important for chambers in the $10K+ range.
AHA
88 lbs
Macy-Pan
48.5 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 →Full Specification Comparison
| Specification | AHA AHA Flex 18 V2 | Macy-Pan MC4000 |
|---|---|---|
| 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); optional concentrator |
| Capacity | 1-person | 1-person + wheelchair |
| Weight | 88 lbs | 48.5 lbs★ |
| Interior Dimensions | 85cm diameter x 250cm length | Wheelchair-accessible entry |
| Portability | portable | fixed-installation |
| FDA Cleared | No | No |
| CE Marked | Yes | Yes |
| Made In | Austria/Slovenia | China |
| Price | $16,000 - $22,000 (estimated) | $12,400★ |
| Warranty | 2 years★ | 1 year |
| Clinical Score | 5/10★ | 4/10 |
| Brand Established | 2006 | 2007 |
| Climate Control | No | No |
| Communication System | No | No |
| Emergency Features | Safety valves, internal pressure relief | Pressure relief valve, wide entry for wheelchair access |
AHA AHA Flex 18 V2 — Standout Features
Macy-Pan MC4000 — Standout Features
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