2.2 ATA Hyperbaric Chambers
Hyperbaric Pro carries two stainless steel hard-shell chambers rated to 2.2 ATA: a 34-inch monoplace unit at $50,900 and a 40-inch model with progressive pressure controls at $56,900. Both ship as complete ready-to-operate systems with no additional equipment required. At 2.2 ATA, the chamber interior reaches approximately 17.6 PSI above standard atmospheric pressure — equivalent to a depth of roughly 39 feet (12 meters) of seawater — and costs approximately $0.39 per hour to run.
Both models include selectable pressure controls, meaning the same chamber can run sessions at 1.5 ATA, 2.0 ATA, or 2.2 ATA without changing equipment. No oxygen tanks, no special venting, and no facility modifications are needed — only a standard electrical connection.
Contact the Hyperbaric Pro team for a comparison of both models based on your space, clinical goals, and budget.
How 2.2 ATA Compares to 2.0 ATA
Most hard-shell chambers for home and clinical use operate at 2.0 ATA (100 kPa, approximately 15 PSI gauge), the pressure level with the broadest published HBOT research base. Hyperbaric Pro's 2.2 ATA models add approximately 10% more absolute pressure above that baseline. At higher pressure, Henry's Law dictates that more oxygen dissolves directly into blood plasma rather than relying solely on hemoglobin — the same mechanism that drives clinical HBOT at 2.0 ATA, at a higher pressure tier.
Both 2.2 ATA models from Hyperbaric Pro include selectable pressure settings, so buyers choosing 2.2 ATA do not give up access to 2.0 ATA. A single chamber covers 1.5 ATA, 2.0 ATA, and 2.2 ATA. For context, 2.4 ATA and above is typically associated with hospital hyperbaric suites operating under physician supervision for specific FDA-cleared indications, and those systems generally require dedicated facility infrastructure that most private and clinic settings cannot accommodate. A 2.2 ATA hard-shell unit delivers meaningfully higher pressure than standard 2.0 ATA models while remaining practical for private practice, clinic, and home installation.
| Factor | 2.0 ATA (Standard) | 2.2 ATA (Hyperbaric Pro) |
|---|---|---|
| Gauge pressure | 100 kPa gauge / 14.7 PSI gauge | 120 kPa gauge / 17.6 PSI gauge |
| Depth equivalent | 33 ft (10 m) seawater | 39 ft (12 m) seawater |
| Selectable settings | Fixed at 2.0 ATA on most models | 1.5, 2.0, and 2.2 ATA in one chamber |
| Research base | Largest published clinical base | Above the 2.0 ATA benchmark |
| Hospital-grade threshold | Below 2.4 ATA clinical systems | Below 2.4 ATA clinical systems |
| Starting price | From $34,900 | From $50,900 |
For a detailed breakdown of how pressure affects dissolved oxygen delivery, see the 2.0 ATA vs 2.5 ATA comparison guide. To browse standard 2.0 ATA models, visit the 2 ATA chamber category.
Who Buys 2.2 ATA Chambers
Integrative and private practice clinics looking for a higher-pressure hard-shell unit that also covers the 2.0 ATA range. Because both models include selectable settings, one 2.2 ATA chamber serves the full hard-shell pressure spectrum without a separate purchase.
Advanced recovery and performance centers that position higher-pressure HBOT as a differentiator from the 1.3 to 1.5 ATA soft chambers most competitors operate. A 2.2 ATA hard-shell unit creates a genuine tier separation in the service offering.
Research and rehabilitation programs running structured protocols at pressure levels above the standard 2.0 ATA clinical baseline, without the infrastructure requirements of 2.4+ ATA hospital-grade systems.
Committed home users who have consulted a healthcare provider and want the highest-pressure monoplace unit available for home installation. For athletes and sports recovery, hard-shell chambers at 2.0+ ATA support tissue oxygenation that soft-shell chambers cannot reach.
HBOT Applications at 2.0 to 2.2 ATA
Research and clinical use of HBOT at pressures in the 2.0 to 2.2 ATA range is associated with the following applications:
- Wound care — diabetic ulcers, radiation injuries, and complex post-surgical wounds
- Stroke recovery and traumatic brain injury rehabilitation programs
- Decompression sickness management
- Sports injury recovery and inflammation reduction
- Neurological condition management protocols
- Post-surgical recovery support
Hyperbaric oxygen therapy at any pressure level should be guided by a qualified healthcare provider. Hyperbaric Pro's chambers are not intended to diagnose, treat, cure, or prevent any disease.
Key Features
Progressive Pressure Controls
Both models include selectable settings — run sessions at 1.5 ATA, 2.0 ATA, or 2.2 ATA without changing equipment. The 40-inch model supports incremented selection up to 2.2 ATA. One chamber covers every hard-shell pressure level in the practical clinical range.
Solo Operation
Interior controls, session timer, and single-press emergency release allow the user inside the chamber to start, monitor, and end sessions without external assistance. Suitable for home use and unsupervised clinic operation.
Multi-Layer Safety Architecture
Dual pressure gauges (internal and external), automatic decompression on power failure, interior emergency release button for instant depressurization, two-way intercom with alarm function, and gradual pressurization for ear equalization are all standard on both models.
No Tanks, No Venting Required
Integrated oxygen concentrators generate oxygen from room air continuously. Room oxygen levels remain unchanged during operation. Installation requires only a standard electrical connection — no medical gas lines, no special venting, no facility modifications.
Near-Silent Operation
Noise-controlled pressure relief valves keep operating volume at approximately 52 dB — comparable to a quiet office environment. No special acoustic preparation required for most installation spaces.
Chamber Specifications at a Glance
| Specification | 34-Inch Model | 40-Inch Model |
|---|---|---|
| Price | $50,900 | $56,900 |
| Max operating pressure | 2.2 ATA / 17.6 PSI gauge / 120 kPa gauge | 2.2 ATA / 17.6 PSI gauge / 120 kPa gauge |
| Selectable settings | Multiple settings up to 2.2 ATA | Selectable settings up to 2.2 ATA |
| Interior diameter | 34 inches | 40 inches |
| Interior length | 88 inches | Contact team for dimensions |
| Shell material | 304-grade stainless steel | 304-grade stainless steel |
| Viewing window | 10mm polycarbonate | 10mm polycarbonate |
| Oxygen purity | Up to 95% — integrated concentrator | Up to 95% — integrated concentrator |
| Oxygen source | Integrated — no tanks required | Integrated — no tanks required |
| Solo operation | Yes — interior controls and emergency release | Yes |
| Operating noise | approx. 52 dB | approx. 52 dB |
| Operational cost | approx. $0.39 per hour | approx. $0.39 per hour |
| Certifications | CE, ISO 9001, ISO 14001, ISO 13485 | CE, ISO 9001, ISO 14001, ISO 13485 |
| Warranty | 3-year chamber / 1-year hardware | 3-year chamber / 1-year hardware |
| Doorway clearance | Fits standard 35-inch doorways | Contact team for clearance specs |
What's Included
Both models ship as complete systems. No additional equipment purchases are required to start sessions on day one.
- Hard-shell stainless steel chamber with sliding-door entry
- All-in-one integrated unit: 10 LPM oxygen concentrator (95% purity), air compressor, and dehumidifier
- Internal and external precision pressure gauges (dual-gauge system)
- Progressive pressure controls with selectable settings
- Session timer — programmable up to 2 hours
- Two-way intercom system with attendant alert
- Interior emergency pressure relief valve (single-press, no tools required)
- Automatic gradual depressurization on power loss
- Interior and exterior controls for solo or supervised operation
- Remote control for exterior management
- Oxygen breathing accessories: face mask, nasal cannula, headset
- Interior grounding mat, negative ion unit, and interior lighting
Optional upgrade: Air conditioning unit available for $2,500. Maintains interior temperature at approximately 68°F / 20°C during sessions.
Price and Financing
Hyperbaric Pro's 2.2 ATA chambers are priced at $50,900 for the 34-inch monoplace model and $56,900 for the 40-inch model with progressive controls. Both prices include the complete system — no additional oxygen equipment, accessories, or setup hardware is required at purchase.
For context on value: a single in-clinic HBOT session at 2.0+ ATA ranges from $150 to $400. A 40-session protocol at those rates runs $6,000 to $16,000 with no ongoing access after the protocol ends. Buyers who plan regular or long-term high-pressure HBOT sessions often find that ownership changes the economics considerably — and at $0.39 per hour to operate, ongoing costs are minimal.
Financing is available for qualified buyers, including both home purchasers and clinic operators. HSA and FSA accounts may be used when a physician documents a qualifying medical need. Contact the team to discuss terms and the application process.
Frequently Asked Questions
What is 2.2 ATA in PSI and kPa?
2.2 ATA equals approximately 17.6 PSI gauge pressure (above atmospheric), or 32.3 PSI absolute. In metric, that is roughly 120 kPa gauge (220 kPa absolute). Depth equivalent is about 39 feet (12 meters) of seawater — the same pressure gradient a diver experiences at that depth.
How does 2.2 ATA differ from 2.0 ATA?
2.2 ATA is approximately 10% higher in absolute pressure than 2.0 ATA (120 kPa vs. 100 kPa gauge). At higher pressure, Henry's Law dictates that more oxygen dissolves directly into blood plasma. Hyperbaric Pro's 2.2 ATA chambers include selectable settings, so the same unit also runs at 2.0 ATA — buyers get the full 2.0 ATA range plus the option to go higher when the protocol calls for it.
Can the 2.2 ATA chamber also run at 2.0 ATA?
Yes. Both Hyperbaric Pro 2.2 ATA models include progressive pressure controls with selectable settings. Operators can choose 1.5 ATA, 2.0 ATA, or 2.2 ATA depending on the session protocol. No equipment change is required.
Are 2.2 ATA chambers suitable for home installation?
Both models fit through standard 35-inch doorways without modification. No special venting, medical gas lines, or room preparation are required — only a standard electrical connection. Consulting with a healthcare provider before beginning any home HBOT program is strongly recommended. Contact the team with your room specifications before ordering to confirm fit.
What certifications do these chambers carry?
Both models hold CE, ISO 9001, ISO 14001, and ISO 13485 certification covering quality management, environmental management, and medical device quality systems. CE marking confirms European medical device conformity for design and manufacturing standards.
What does the warranty cover?
Both 2.2 ATA models carry a 3-year warranty on the main chamber body and a 1-year warranty on hardware components including the oxygen concentrator, compressor, and dehumidifier. Contact the Hyperbaric Pro team for complete warranty documentation.
How much does it cost to run a session?
Operational costs run approximately $0.39 per hour based on electricity consumption. No oxygen tanks or consumables are required — the integrated concentrator generates oxygen from room air continuously. A 90-minute session costs roughly $0.59 in electricity.
Does a session require an attendant?
No. Both models include interior controls, a programmable session timer, and a single-press emergency relief valve that lets the user start, monitor, and safely exit without external assistance. An attendant can monitor via the two-way intercom but is not required for operation.
What does pressurization feel like at 2.2 ATA?
Pressurization is gradual. Most users notice a sensation similar to descending in an airplane — primarily felt in the ears. Equalization techniques (swallowing, yawning, or the Valsalva maneuver) help manage ear pressure. Sessions at 2.2 ATA are not significantly different in comfort from 2.0 ATA sessions for most users.
How long is a typical session at 2.2 ATA?
Most protocols at this pressure run 60 to 90 minutes. Both chambers include a session timer programmable up to 2 hours, with automatic monitoring of pressure, temperature, humidity, and CO2 throughout the session.
Is financing available?
Yes. Personal and business financing options are both available. HSA and FSA accounts may be used when a physician documents a qualifying medical need. Visit the financing page for terms and the application process.
Can I see the chambers before purchasing?
Yes. Hyperbaric Pro is based in the Chicagoland area. Call (630) 812-7865 to arrange a showroom visit or schedule a video walkthrough of both models before committing to a purchase.
Questions About 2.2 ATA Chambers?
Both models carry CE and ISO 13485 certification, a 3-year chamber warranty, and ship as complete ready-to-use systems. A Hyperbaric Pro specialist can walk you through model differences, space requirements, and financing — with no obligation.


