Chamber Comparison
Henshaw CubevsPerry Baromedical Sigma 40-II
Henshaw
Cube
2
ATA
$100K
Starting
3yr
Warranty
Perry Baromedical
Sigma 40-II
3
ATA
$100K
Starting
1yr
Warranty
The Bottom Line
The Henshaw Cube wins on warranty, while the Perry Baromedical Sigma 40-II takes the edge in max pressure, fda clearance, and clinical credibility. If max pressure matters most, the Perry Baromedical Sigma 40-II is the better choice.
Key Differences
Henshaw
2 ATA
Perry Baromedical
3 ATA
Higher pressure enables more clinical protocols. The Perry Baromedical Sigma 40-II reaches 3 ATA, which supports FDA-approved treatment protocols.
Henshaw
Not FDA Cleared
Perry Baromedical
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.
Henshaw
5/10
Perry Baromedical
9/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
Henshaw
3 years
Perry Baromedical
1 year
A longer warranty reduces long-term ownership risk, especially important for chambers in the $10K+ range.
Who Should Buy Which?
Best for
Henshaw Cube
Multi-patient clinics, sports facilities, hospitals, group therapy centers
View full details →Best for
Perry Baromedical Sigma 40-II
High-volume wound care centers, efficiency-focused clinical programs
View full details →Full Specification Comparison
| Specification | Henshaw Cube | Perry Baromedical Sigma 40-II |
|---|---|---|
| Chamber Type | Hard-Shell Multiplace | Hard-Shell Multiplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 2 ATA | 3 ATA★ |
| Oxygen Delivery | ambient-air | 100%-medical-grade |
| O₂ Concentration | 21% (ambient); optional O2 concentrator available | 100% via BIBS with Duke hoods |
| Capacity | multi-person | 2-person |
| Weight | — | 3,000 lbs |
| Interior Dimensions | Multi-person cube design | 40.5in diameter, dual-patient |
| Portability | stationary | fixed-installation |
| FDA Cleared | No | Yes (#Multiple 510(k)s)★ |
| CE Marked | Yes | Yes |
| Made In | United Kingdom | United States |
| Price | Contact for pricing (~$100,000+) | $100,000 - $160,000 |
| Warranty | 3 years★ | 1 year |
| Clinical Score | 5/10 | 9/10★ |
| Brand Established | 2008 | 1956 |
| Climate Control | Yes | Yes |
| Communication System | Yes | Yes |
| Emergency Features | Emergency depressurization, multiple safety interlocks, fire suppression | Emergency depressurization, fire suppression, dual BIBS, multiple safety interlocks |
Henshaw Cube — Standout Features
Perry Baromedical Sigma 40-II — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
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