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Compare hyperbaric chamber makers worldwide - certifications checked against official registers, never on marketing claims.
The Basics
HBOT Hyperbaric Oxygen Therapy
A section of the independent HBOT-Wiki knowledge base.
At a Glance
Hyperbaric oxygen therapy (HBOT) means breathing oxygen inside a chamber where the air pressure is raised above normal levels, so the blood can take up and carry more of it. This page covers the basics - what happens during a session, the three chamber formats documented on this site, and which certifications matter before a chamber goes into commercial use. It is background knowledge, not medical advice; treatment decisions belong with a qualified professional.
What hyperbaric oxygen therapy is
Hyperbaric oxygen therapy is a treatment in which a person breathes oxygen inside a sealed chamber while the surrounding air pressure is held above normal atmospheric levels. Under that elevated pressure the lungs take in significantly more oxygen than they would at ordinary pressure, and the bloodstream carries it through the body.
Reported benefits vary by indication and are not the subject of this page. HBOT-Wiki.com is an independent knowledge base: we explain how the technology works and compare the equipment, but we do not sell chambers and we make no promises about outcomes. For anything touching a medical condition, discuss it with a qualified professional first.
How a session works
A session follows the same basic sequence regardless of chamber type. You enter and settle in, and the session begins as the pressure inside the chamber rises gently from ambient to the target level.
As the pressure builds, the lungs take in more oxygen than they can at normal air pressure. That oxygen dissolves into the blood plasma and is carried to tissues that can be harder to supply under ordinary conditions. At the end, the chamber is brought back down to normal pressure before you step out.
Operating pressure, session length and frequency depend on the chamber and the intended use, and are set by the operator or a supervising professional - not by the equipment alone.
The main chamber types
This site documents three chamber formats, each with its own reference page. Monoplace chambers treat a single person at a time. Multiplace chambers hold several people in one pressurized room - among the manufacturers profiled here, stated capacities reach up to 24 persons. Soft-sided (mild) chambers, often called mHBOT, are the portable, lower-pressure format designed for home and wellness use.
One number shows how wide the field is: across the 16 manufacturer profiles on this site, stated operating pressures span 1.1 to 21 ATA depending on format and intended use. That is why we state the exact pressure range on each individual profile instead of quoting a 'typical' figure per format.
Which format fits depends on the setting and the pressure required. See the dedicated Monoplace, Multiplace and Soft-Sided (Mild) pages for the format-specific detail, and the Brands & Manufacturers section for how individual chambers compare.
Certification: what to verify before buying
This page makes no medical safety assessment - questions about personal suitability or treatment belong with a qualified professional. What an independent wiki can verify is the equipment side: whether a chamber meets the formal requirements of its market, and whether the manufacturer's claims hold up.
Certification requirements differ by region. Relevant frameworks include FDA 510(k) clearance in the United States, CE marking and EUDAMED registration in Europe, plus engineering and quality standards such as ASME PVHO-1 and ISO 13485. These frameworks are the baseline a serious procurement decision starts from.
This is where our approach differs. Across the 16 manufacturers profiled on this site, every certification claim is checked against the official registers and marked either register-verified or manufacturer-stated - never taken on marketing alone. Start with the Brands & Manufacturers comparison to see how each supplier's claims hold up.