Sigma 40 hyperbaric chamber
Clinical GradeFDA ClearedCE

Perry Baromedical

Sigma 40

World's largest monoplace (40.5in dia)3.0 ATAmaximum comfortzero claustrophobia

Overview

The Sigma 40 is the largest monoplace hyperbaric chamber available worldwide, with a 40.5-inch diameter bore. This exceptional width virtually eliminates claustrophobia and accommodates patients of all sizes, including those with mobility aids. Maintains full 3.0 ATA capability with 100% oxygen delivery. The gold standard for patient comfort in monoplace HBOT.

Who is this for?

Designed with patient comfort as the primary concern — especially suited for bariatric patients, individuals who experience claustrophobia, or any program where the patient experience is a retention factor. The extra-wide interior gives larger patients genuine comfort during longer treatment sessions without feeling confined. Clinical facilities focused on serving the full range of body types and reducing patient anxiety will find the Sigma 40 purpose-built for exactly that.

Estimated Price

$65,000 - $110,000

Financing: Leasing and financing available for medical facilities

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Quick Specs

Key technical specifications

Chamber TypeHard-Shell Monoplace
Performance TierClinical Grade
Max Pressure3 ATA
Oxygen Delivery100%-medical-grade
O₂ Concentration100% via BIBS with Duke hoods
Capacity1-person
Portabilityfixed-installation
Interior Dimensions40.5in diameter (largest monoplace available)
Weight2850 lbs
Power208-240V, facility-grade
Warranty1 year
Lead Time8-16 weeks
Ships ToGlobal (50+ countries)
Made InUnited States
Brand Est.1956
FDA Cleared#Multiple 510(k)sCEUHMS
Clinical Credibility Score9/10

Manufacturer

Brand

Perry Baromedical

Headquarters

1313 13th St, Riviera Beach, FL 33404

Established

1956

Type

manufacturer

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Data confidence: high · Verified 2026-03-03