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Hard-Shell & Medical-Grade Hyperbaric Chambers
Built to a true 2.0 ATA on 304 stainless steel, certified to ISO 13485 and ASME PVHO-1, and shipped straight from our own factory floor — not a distributor’s warehouse.

Why Hard-Shell & Medical-Grade Pressure Is the Only Clinical Standard

"We hold 2.0 ATA on 4.0 mm of 304 stainless because a chamber is a pressure vessel with a person inside it. Every weld, every viewport, every relief valve is sized for a human occupant — that is the line between a medical device and a fabric bag."
INIT: MACY-PAN Engineering Team
[01] CLINICAL DEFINITION
A hard shell hyperbaric chamber is a rigid steel or stainless-steel pressure vessel sealed to deliver hyperbaric oxygen therapy at 2.0 ATA or higher — roughly twice the pressure you feel at sea level. That pressure is what drives oxygen into blood plasma deep enough to reach bone, wounds, and poorly perfused tissue. Soft-sided "mild" chambers stop at 1.3–1.5 ATA and simply cannot reach that therapeutic depth.
[02] HIDDEN RISKS
The budget "soft bag" assumption is dangerous. The Undersea & Hyperbaric Medical Society documents a young man in North Carolina who died of asphyxia in an unattended soft-sided "Mild Hyperbaric Chamber," a 2024 chamber rupture in India, and notes that Health Canada has banned unauthorized soft-shell chambers outright. Most fabric chambers are not FDA-registered and do not comply with NFPA 99 or ASME PVHO-1.
[03] ENGINEERING TRUTH
The honest version is blunt: a soft bag is not a cheaper hard chamber, it is a different and largely uncertified device. We will not claim a 1.5 ATA fabric unit does the job of a 2.0 ATA hull — the real trade-off is pressure depth, not price. ASME PVHO-1 governs any vessel that holds a person above a 2 psi differential, and most soft bags fail that bar.
[04] THE ISO 13485 STANDARD
Unlike that hidden risk, a MACY-PAN medical-grade hard-shell chamber closes the gap because it is engineered to ISO 13485 — a medical device is not the place to compromise. You get a certified pressure boundary, medical-grade gas handling, and operator-grounded electronics built to the same fire and pressure codes a hospital answers to.
Get the Spec Comparison Sheet →The MACY-PAN Hard-Shell Range — Monoplace to Multiplace
Buying piecemeal from different makers is the mistake clinics regret — mismatched warranties and no single engineering contact the day a part fails. MACY-PAN covers every size a clinic scales into, from a single-seat monoplace to a five-person flagship multiplace, on the full 1.0–2.0 ATA hard-shell range under one ISO 13485 system. That works because one supplier means one warranty standard, one engineering contact, and one accountable resolution across your whole fleet.

- 2.0 ATA (100 kPa), SUS304 + PC door
- 4 widths: 75 / 85 / 90 / 100 cm
- Inner + outer touchscreen, 120-min sessions
- ISO / CE / ASME / RoHS

- 1.5 ATA, 304 stainless, compact 90 x 110 cm footprint
- 9.8" touchscreen + manual valve backup
- For patients who cannot lie flat
- ISO 13485

- 1.0–1.5 ATA (1.6 option), stainless hull
- Side sliding door + sliding stretcher for immobile patients
- 8 safety layers, 10 L/min oxygen
- CE / ISO 9001 / ISO 13485 / EMC / TUV / SGS

- True 2.0 ATA, 304 SS 4.0 mm, WIKA gauges
- Mono / Fort / 2-seat / PLUS (4–5 person)
- 230 L/min dual-channel air, 6-layer safety
- ISO 13485 across the range
Selection Matrix
Map a model to your room and patient mix by working pressure and capacity.
| Series | Type | Pressure | Capacity | O2 Flow | Best-fit setting |
|---|---|---|---|---|---|
| HP1501 | Hard sitting | 1.5 ATA | 1 | 5 L/min | Spa, gym, small clinic |
| HP2202 | Hard lying | 2.0 ATA | 1 | optional | Clinic, med-spa, home-clinical |
| MC750 | Stretcher hard | 1.0–1.5 ATA | 1 (immobile) | 10 L/min | Hospital, rehab, wound care |
| HE5000 Mono | Hard sitting | 2.0 ATA | 1 | 10 L/min | Premium clinic VIP, high-end home |
| HE5000-Fort | Hard multiplace | 2.0 ATA | 1–2 | 20 L/min | Small practice, rehab center |
| HE5000 / DIA | Hard multiplace | 2.0 ATA | 2 | 20 L/min | Medium clinic, sports team |
| HE5000-PLUS | Hard multiplace | 2.0 ATA | 4–5 | 20 L/min | Large clinic, hospital, resort |
Hard-Shell vs Soft-Shell vs Imported Composite — The Spec Gap
Not every chamber sold as "hard" is medical-grade. Plenty top out at 1.5 ATA or use aluminum and composite shells that buyers mistake for clinical steel — the real trade-off is pressure depth versus a lower sticker price. The gap shows up in three places: pressure, material, and the gas-handling that the ASME PVHO-1 standard governs for a 100% oxygen environment.

| Spec | MACY-PAN Hard-Shell | Composite "hard" | Soft-sided bag |
|---|---|---|---|
| Max working pressure | 2.0 ATA (100 kPa) | 2.0 ATA | 1.3–1.5 ATA |
| Shell material | 304 stainless, 4.0 mm | Composite / aluminum | Coated fabric + zipper |
| Viewport | 12 mm reinforced PC | Acrylic | Plastic film |
| Air delivery | 230 L/min dual-channel | ~110 L/min single | Concentrator |
| Pressure monitoring | Internal + external WIKA + digital | Single gauge | Single gauge |
| Safety layers | 6–8 (relief + const-pressure) | 2–3 | Minimal |
| ASME PVHO-1 / NFPA 99 | Built to standard | Varies | Non-compliant |
| Service life | 10–15+ years (steel hull) | Material degradation risk | Wear / seam failure |
Hard vs Soft: Where the Difference Lives
Pressure levels and oxygen delivery separate hard from soft-sided chambers: a portable hyperbaric chamber holds roughly 1.3 ATA of atmospheric pressure and feeds oxygen through an oxygen concentrator and oxygen mask, while a hard-sided chamber sustains higher oxygen concentration and steadier oxygen flow inside the chamber. Portable chambers suit home use; medical-grade devices carry the clinical load in clinical settings, where protocols can run from 2.0 to 2.4 ATA.
That dual-channel 230 L/min air system on the HE5000-Fort and PLUS matters more than the headline ATA number. Single-inlet chambers create uneven pressure zones; dual-inlet delivery pressurizes the cabin evenly, so every occupant gets the same treatment dose.
Safety, Certifications & Quality Control You Can Audit
Regulators treat a hyperbaric chamber as a Class II prescription medical device that needs FDA 510(k) clearance, and the National Fire Protection Association's NFPA 99 Chapter 14 requires the vessel to be fabricated to ASME PVHO-1 under strict safety protocols. These are the safety protocols that separate certified medical-grade devices from uncertified imports — our stainless tanks hold an ASME PVHO-1 certificate issued to Shanghai Baobang in 2023.
8-Layer Safety Architecture (MC750 / HE5000)
- Triple pressure display — internal mechanical gauge, external mechanical gauge, and digital readout, so no single sensor failure can hide the chamber pressure.
- Dual automatic constant-pressure valves plus a five-stage manual relief valve for graded depressurization.
- Emergency relief valve vents to ambient in roughly 20 seconds with zero electrical power.
- Power-failure auto-release — on a blackout the chamber depressurizes and the door opens via an internal emergency device.
6 Inspection Gates Before a Chamber Ships
Raw-material inspection, assembly test, a 72-hour continuous aging test, full-system test, final inspection, and packing inspection. Every unit clears all six before it leaves the floor — the kind of process trace a procurement audit can actually verify.






Where MACY-PAN Chambers Earn Their Keep — Clinics, Hospitals, Rehab, Sports & Wellness
Medical-grade hard-shell chambers treat the medical conditions hyperbaric medicine recognizes — from wound care and post-surgical rehabilitation to sports recovery and high-end longevity wellness. One hyperbaric oxygen chamber at 2.0 ATA lets a room serve both clinical indications and premium recovery clients, which turns a single asset into two revenue streams.
FDA-Recognized Indications (UHMS)
Hyperbaric oxygen treatment is FDA-approved for decompression sickness, carbon monoxide poisoning, non-healing wounds, and crush injury, while altitude sickness responds to milder protocols. At higher pressure than normal air provides, breathing pure oxygen lifts blood oxygen and arterial oxygen levels to drive healing. These benefits of hyperbaric oxygen therapy are the clinical basis the Undersea and Hyperbaric Medical Society documents.
Solving the Monoplace Bottleneck
When demand climbs, a single monoplace becomes a throughput risk; turning clients away is an expensive, hidden cost over a 90–120 minute cycle. Unlike that bottleneck, MACY-PAN's multiplace HE5000-PLUS treats four to five clients in one cycle, because every unit ships under the same ISO 13485 certification.
Throughput math is straightforward for a multiplace unit. An HE5000-PLUS treats four to five clients per cycle, so the same 90–120 minute session a monoplace bills once can be billed several times over — which is exactly why clinics scaling for volume move to multiplace hard-shell rather than buying more single chambers.
Typical annual revenue per chamber reported across U.S. HBOT centers
Per session, hard-shell 2.0 ATA
Reported full-ROI window
Revenue per patient (~20 sessions)
Industry-average figures — Sources: Olive Oxygen 2026 ROI analysis, HBOTforSale clinic ROI, Heads Up Health. Actual returns vary by location, utilization, and payer mix.
Procurement Guide — Factory-Direct Pricing, OEM/ODM, Lead Time & After-Sales
Most hard hyperbaric chambers reach buyers through a distributor markup, which inflates nearly every listing of hyperbaric chambers for sale you find online. Retailers list our HP2202 well above $40,000; buying these hyperbaric oxygen therapy chambers from the factory removes that layer and puts you in direct contact with the engineers who built the unit. Mid-range hard-shell chambers sit in the $20,000–$35,000 band and clinical multiplace units run $40,000–$80,000+, so the markup you skip is real money.
What clinic buyers tell each other to check before they wire a deposit
Hyperbaric buyers warn each other about tariffs and customs, long waits for chambers and spare parts, and slow overseas repairs from "brand names with no support." We answer each one directly: in-house ISO 13485 manufacturing, a stocked spare-parts chain, direct engineering access for service, and CE / RoHS / EMC / TUV / SGS documentation plus global-voltage builds (110V / 220V / 230V / 240V) for clean customs clearance.
OEM / ODM — Your Brand, Your Market
Every series ships OEM-ready. Exterior color matches any Pantone or RAL, interior leather and stitch patterns are configurable, and we add your logo, branded packaging, and localized manuals. Minimum order quantity is one set, so a distributor can validate the product before committing to volume.
Pricing factors framework
Your quotation is driven by working pressure (1.5 vs 2.0 ATA), capacity (monoplace vs 5-person multiplace), oxygen-system configuration, certification scope for your import market, and OEM customization. Each dimension shifts the price, which is why we quote per application rather than list a single number.
Clinical & Procurement Evaluation Tools
Assess chamber configurations, calculate clinic ROI, and evaluate ATA pressure parameters with our specialized engineering and business calculators.
Frequently Asked Questions
What is a hard-shell hyperbaric chamber?
It is a rigid steel or stainless-steel hyperbaric chamber sealed to hold 2.0 ATA or higher and deliver medical-grade hyperbaric oxygen therapy. Unlike a soft-sided bag capped near 1.3–1.5 ATA, a hard shell hyperbaric oxygen chamber reaches the pressure clinical indications require. Hard hyperbaric chambers like our hard-shell HBOT range are built to ASME PVHO-1.
Hard shell vs soft shell — which is better for a clinic?
For any medical or clinical use, hard-shell at 2.0 ATA is the standard. Soft bag chambers are not FDA-registered in most cases, do not meet NFPA 99 or ASME PVHO-1, and have documented safety incidents. A clinic billing for therapy needs the certified pressure boundary a hard-shell chamber provides.
Monoplace vs multiplace — which configuration fits my practice?
A monoplace (HP2202, HE5000 Mono) treats one patient and fits a standard treatment room. A multiplace (HE5000-Fort through PLUS, 1–5 people) treats several clients per cycle and raises revenue per session. Solo practices and home-clinical usually start monoplace; rehab centers and high-volume wellness move to multiplace.
Do I really need 2.0 ATA, or is 1.5 ATA enough?
It depends on use. 1.3–1.5 ATA supports general wellness and mild recovery; 2.0 ATA is the clinically preferred depth for wound care, post-surgical recovery, and serious hyperbaric therapy for athletes. A 2.0 ATA hard-shell chamber covers both, which is why it is the more flexible commercial asset.
Can I buy my own hyperbaric chamber, and is it legal?
Yes. Clinics, wellness centers, and individuals purchase hyperbaric chambers directly. In the U.S. a hyperbaric chamber is a Class II prescription device, so clinical operation is under physician direction. We supply the certification documentation your jurisdiction and customs require.
How much does a medical-grade hard-shell chamber cost?
Mid-range hard-shell chambers generally run $20,000–$35,000 and clinical multiplace units $40,000–$80,000+, depending on pressure, capacity, and oxygen configuration. Buying factory-direct removes distributor markup. Request a quote and we price to your exact specification.
Can I order OEM / custom-branded chambers?
Yes. We offer full OEM/ODM: custom Pantone/RAL exterior color, interior finish, logo placement, branded packaging, and localized manuals. Minimum order quantity is one set, so distributors can validate before scaling.
What certifications should a medical hyperbaric chamber have?
Look for ISO 13485 (medical device QMS) and ASME PVHO-1 (the human-occupancy pressure-vessel standard NFPA 99 requires), plus CE, RoHS, EMC, and independent TUV/SGS testing. MACY-PAN holds all of these, including an ASME PVHO-1 certificate for our stainless tanks.
How much space and power does installation need?
A monoplace fits a standard treatment room on a compact footprint and rolls in on locking casters — no wall reinforcement. Each machine uses a single standard outlet (110V/220V/230V/240V available), with no three-phase requirement. Typical setup runs under two hours from crate to first session.
What about lead time, warranty, and after-sales support?
As the original manufacturer we control the build schedule, hold a spare-parts chain, and give you direct engineering access for service rather than routing through a reseller. Warranty and lead time are confirmed on your quotation against your configuration and destination.
Need a hyperbaric chamber matched to your room, pressure target, and compliance documents?
MACY-PAN helps clinics, wellness centers, distributors, and home buyers compare soft-shell, hard-shell sitting, and medical-grade lying chambers before quotation. Send your intended use, available space, country, and preferred ATA range, and our team will recommend a practical model path.



