Chamber Comparison
HPO TECH PetravsSechrist Industries Legacy Series (3200/3300HR/3600HR)
HPO TECH
Petra
2.4
ATA
$50K
Starting
—
Warranty
Sechrist Industries
Legacy Series (3200/3300HR/3600HR)
3
ATA
$30K
Starting
1yr
Warranty
The Bottom Line
The Sechrist Industries Legacy Series (3200/3300HR/3600HR) has clear advantages in max pressure, price, fda clearance, and clinical credibility. However, both chambers sit in the Clinical Grade tier, so consider your specific requirements before deciding.
Key Differences
HPO TECH
2.4 ATA
Sechrist Industries
3 ATA
Higher pressure enables more clinical protocols. The Sechrist Industries Legacy Series (3200/3300HR/3600HR) reaches 3 ATA, which supports FDA-approved treatment protocols.
HPO TECH
Custom quote (est. $50,000 - $100,000)
Sechrist Industries
$30,000 - $60,000 (refurbished)
A significant price gap of ~40%. Consider whether the higher-priced unit's additional features justify the investment for your use case.
HPO TECH
Not FDA Cleared
Sechrist Industries
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.
HPO TECH
5/10
Sechrist Industries
9/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
Who Should Buy Which?
Best for
HPO TECH Petra
Elderly patients, accessibility-focused clinics, easy-entry requirement
View full details →Best for
Sechrist Industries Legacy Series (3200/3300HR/3600HR)
Budget-conscious clinics, refurbished market buyers, proven reliability
View full details →Full Specification Comparison
| Specification | HPO TECH Petra | Sechrist Industries Legacy Series (3200/3300HR/3600HR) |
|---|---|---|
| Chamber Type | Hard-Shell Monoplace | Hard-Shell Monoplace |
| Performance Tier | Clinical Grade | Clinical Grade |
| Max Pressure | 2.4 ATA | 3 ATA★ |
| Oxygen Delivery | 100%-medical-grade | 100%-medical-grade |
| O₂ Concentration | 95-100% via mask/hood | 100% oxygen environment (entire chamber pressurized with O2) |
| Capacity | 1-person | 1-person |
| Weight | — | 2,360 lbs |
| Interior Dimensions | Accessibility-focused with retractable acrylic door | Various (33-36in diameter) |
| Portability | fixed-installation | fixed-installation |
| FDA Cleared | No | Yes (#K140559)★ |
| CE Marked | Yes | Yes |
| Made In | Turkey | United States |
| Price | Custom quote (est. $50,000 - $100,000)★ | $30,000 - $60,000 (refurbished) |
| Warranty | — | 1 year |
| Clinical Score | 5/10 | 9/10★ |
| Brand Established | 2020 | 1973 |
| Climate Control | Yes | Yes |
| Communication System | Yes | Yes |
| Emergency Features | Emergency depressurization, fire suppression, retractable door for easy access | Emergency vent system, fire suppression, safety interlocks |
HPO TECH Petra — Standout Features
Sechrist Industries Legacy Series (3200/3300HR/3600HR) — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
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