Abstract
- The oxygen supply determines the actual oxygen concentration that your users achieve inside the chamber—the chamber alone is not enough.
- Two key components: the breathing system (BIBS mask with constant flow or free-flow) and the oxygen source (concentrator with sufficient output and purity).
- For professional HBOT use, concentrators with a flow rate of about 20 l/min and high oxygen purity are common; medical devices typically deliver 90–96% oxygen.
- Oxygen is a fire accelerant—design, installation, and maintenance should be left to experts. ProReset systems are planned, including consultation and installation throughout Europe.
The proper oxygen supply is the component of an HBOT system that determines how much oxygen your users actually inhale inside the chamber—the chamber merely provides the pressure, while the breathing system and oxygen source deliver the inhaled oxygen. Anyone planning an oxygen chamber must therefore consider the oxygen supply from the very beginning: the breathing mask, concentrator, and safety plan all go hand in hand.
In practice, oxygen supply is often underestimated. Operators compare chambers based on pressure rating and design, but overlook the fact that two chambers with similar designs can deliver completely different oxygen concentrations depending on the breathing system and concentrator used. This guide explains the components, technical specifications, and safety aspects—objectively, without making any medical claims. Medical advice should always be sought regarding medical indications and contraindications; for questions regarding diving medicine and hyperbaric medicine in Germany, the GTÜM (Society for Diving and Hyperbaric Medicine) is the appropriate resource.
Why the oxygen concentration does not depend solely on the chamber
The Undersea and Hyperbaric Medical Society (UHMS) defines hyperbaric oxygen therapy as the inhalation of nearly 100% oxygen at an ambient pressure of at least 1.4 ATA. Two factors therefore determine the outcome: the pressure inside the chamber and the oxygen concentration in the inhaled air. The physical principle behind this is Henry’s Law—the higher the ambient pressure of the oxygen, the more oxygen physically dissolves in the blood plasma.
The key point is this: The chamber provides the pressure, but the high oxygen concentration is delivered by the breathing system in combination with the oxygen source. In many soft-shell systems, the user breathes enriched oxygen through a mask, while the chamber itself is filled with compressed air. Without a high-performance oxygen supply, the percentage of oxygen inhaled remains low—in which case, the chamber’s pressure rating alone says little about its actual performance.
Module 1: The Respiratory System — BIBS or Free-Flow
BIBS Mask
BIBS stands for “Built-In Breathing System.” These masks are permanently connected to the chamber or supply system and deliver a constant flow of oxygen through a tube, while exhaled air—including carbon dioxide—is safely vented. The advantage over simple demand regulators (which release oxygen only when the user inhales) is that a constant flow ensures a steady supply of oxygen regardless of breathing patterns, making it more predictable in operation.
Free-Flow Systems
In free-flow systems, oxygen flows freely into a helmet or hood. These systems are comfortable and, for some user groups, more pleasant to use; however, they tend to consume more oxygen, which places greater demands on the oxygen source. The system best suited for your operation depends on the chamber type, throughput, and comfort requirements.
Module 2: The Oxygen Source — the Concentrator
The oxygen concentrator extracts enriched oxygen from the ambient air. Three key metrics are important for HBOT applications: flow rate (liters per minute), oxygen purity (percent), and reliability during continuous operation. Medical-grade or high-quality concentrators typically deliver 90–96% oxygen; for professional HBOT use, devices with an output of around 20 L/min are common, while smaller 5–10 L/min devices are generally designed for milder applications and compact chambers.
An important, often overlooked point: The oxygen output must be appropriate for the chamber’s design and the number of people it accommodates. A larger chamber or one with more seats requires a correspondingly higher oxygen output. Also, be sure to monitor oxygen purity—professional systems emit an audible alert when oxygen purity falls below a defined threshold.
Design Overview
| Criterion | Mild / Compact Application | Professional Studio/Clinic Operations |
|---|---|---|
| Concentrator Output | approx. 5–10 L/min | approx. 20 L/min |
| Oxygen Purity | 90–96% (typical) | 90–96% (typical), with monitoring |
| Respiratory System | Mask / Hood | BIBS mask (constant flow) |
| Redundancy | optional | Recommended (backup power supply) |
| Maintenance | regularly | Maintenance Contract Recommended |
Safety: Oxygen is a fire accelerant
Oxygen does not burn on its own, but it significantly accelerates any combustion. In an oxygen-enriched environment, materials ignite more easily and burn more intensely. Therefore, for professional operation, factors such as proper placement, ventilation, grounded and spark-free equipment, fire-resistant materials, and trained personnel are not optional—they are mandatory. Smoking, open flames, and certain cosmetic products (e.g., oil-based ones) are strictly prohibited in the vicinity of an oxygen chamber.
That is precisely why oxygen supply is not something you should try to handle on your own. The proper design of the concentrator, tubing, breathing system, and safety plan should be carried out by a qualified provider who installs and maintains the system.
Buying Guide: Thinking of Healthcare as a System
An oxygen chamber is only as good as its oxygen supply. That’s why, at ProReset , the systems are designed as a comprehensive solution—including consultation, Europe-wide installation, and a suitable oxygen supply. The hard-shell chambers ProReset Orbit 2.0 ATA and ProReset Orbit 1.5 ATA can be configured with a BIBS mask and a high-performance concentrator for seamless operation.
The right configuration depends on your chamber, the number of people, and your throughput—which is why we don’t provide a one-size-fits-all price list, but rather a customized quote that includes expert advice. As an authorized ProReset partner offering installation and maintenance throughout Europe, we support you every step of the way—from planning and oxygen supply to ongoing operation. You can find an overview of the systems in our Hyperbaric Oxygen Therapy (HBOT) and Regeneration categories.
For more in-depth information, see our HBOT buying guide, the hard-shell vs. soft-shell comparison, and the explanation of ATA pressure levels.
Common Mistakes in Oxygen Supply
Compare only the chambers. Two chambers with similar designs can deliver very different oxygen concentrations depending on the breathing system and concentrator. Always factor the supply into your planning.
Do not undersize the concentrator. A larger chamber or one with multiple seats requires more oxygen. A unit that is too small will slow down operation.
Treating safety as a secondary concern. Oxygen is a fire accelerant. Installation, materials, and staff training must be part of the plan from the very beginning.
Forgot to perform maintenance. Concentrators and breathing systems are equipment that operates continuously. Without regular maintenance, their purity and reliability decline.
Frequently Asked Questions
What is a BIBS mask?
BIBS stands for “Built-In Breathing System.” It is a breathing system permanently connected to the supply system that delivers a constant flow of oxygen through a tube and safely removes exhaled air, including carbon dioxide.
What should be the output of an oxygen concentrator for HBOT?
For professional use, concentrators with a flow rate of about 20 l/min are standard. Smaller units with a flow rate of 5–10 l/min are better suited for less demanding applications and compact chambers. The appropriate capacity depends on the chamber and the number of people.
What is the oxygen purity of a concentrator?
High-quality medical oxygen concentrators typically deliver 90–96% oxygen. Professional systems monitor oxygen purity and alert the user if it falls below a defined threshold.
Is oxygen supply a safety issue?
Yes. Oxygen promotes fire and accelerates combustion. Proper placement, ventilation, appropriate materials, and trained personnel are required. The system should be professionally installed and maintained.
Does HBOT replace medical treatment?
No. This article deals exclusively with the technical design of oxygen supply systems. For medical indications and contraindications, medical advice should be sought; for questions regarding hyperbaric medicine, the GTÜM is the appropriate technical authority.
Conclusion
The oxygen supply is the heart of every HBOT system—and the key factor that distinguishes professional solutions from makeshift ones. A properly sized, high-purity concentrator, a suitable breathing system such as a BIBS mask, and a well-designed safety concept determine whether your chamber will operate reliably and safely on a day-to-day basis. Therefore, think of the oxygen supply as a system, not just as accessories.
Are you planning to install an oxygen chamber and would like to have the supply system professionally designed? Contact us —we’ll provide you with a customized quote that includes consultation, installation, and maintenance.