Mild Hyperbaric Chamber at Home vs Clinical HBOT: What's the Difference?
What's the difference between a mild hyperbaric chamber at home and clinical HBOT? Home chambers run at 1.3–1.5 ATA on concentrator oxygen for wellness. Hospital HBOT runs at 2.0 ATA or higher on near-100% oxygen under medical supervision. For home wellness use, a 1.5 ATA soft chamber is enough for most people.
Our top home picks for 2026
Shop all home hyperbaric chambers →
TECNOTU 1.3 ATA Wheelchair Chamber$7,950–$8,750Best for stiff knees, hips or wheelchairs
View product
Quick answer: key takeaways
- Clinical HBOT, as the Undersea and Hyperbaric Medical Society (UHMS) defines it, means near-100% oxygen at 1.4 ATA or more. Every condition it approves HBOT for starts at 2.0 ATA.
- Most soft home chambers sit at 1.3–1.5 ATA and feed 90–97% oxygen through a mask from a 10–15 L/min concentrator.
- A 2.0 ATA steel chamber in your spare room still isn't clinical HBOT. Research doesn't back mild HBOT as a medical treatment; people buy home chambers for general wellness.
- Need monitoring or a prescribed course? Start at a clinic.
What is mild HBOT?
Mild hyperbaric oxygen therapy (mHBOT) means sitting or lying in a chamber pressurized to about 1.3–1.5 ATA, usually a soft zippered one, while you breathe oxygen from a concentrator. ATA stands for atmospheres absolute. Sea level is 1.0, so 1.3 ATA is 30% more pressure than the air around you right now.
At Selected Comfort, most of the home hyperbaric chambers we sell fall into this group. None of them is a hospital chamber, and you should hear that before spending $6,000.
Home HBOT vs hospital HBOT at a glance
Same word, different machines. Here's home HBOT vs hospital HBOT side by side.
| Feature | Mild home chamber | Clinical (hospital) HBOT |
|---|---|---|
| Pressure | Mostly 1.3–1.5 ATA; a few home models reach 2.0 | Typically 2.0 ATA or higher |
| Oxygen | Concentrator, 90–97% purity, about 10–15 L/min | Near-100% medical oxygen |
| Breathing | Mask, inside a chamber filled with air | Oxygen-filled chamber, or mask/hood |
| Chamber | Soft TPU with zippers; sit, lie or roll in | Rigid single-person or multi-person vessel |
| Who's watching | You and another adult at home | Trained staff, physician oversight |
| Regulatory status | General wellness equipment, not FDA-cleared | FDA-cleared, used for specific conditions |
| Cost | One purchase: soft from about $5,750, hard shell from about $16,450 | Paid every session |
| Access | Whenever you like | Appointments, often a fixed course |
Prices from selectedcomfort.com product pages as of November 2026.
Is mild hyperbaric oxygen therapy effective?
Not as a treatment for a medical condition, going by the research we have. Our customers use it as part of a wellness routine, and that's the only way we'll sell it to you.
What the hyperbaric medicine society says
The UHMS published a position statement on soft, low-pressure chambers in 2017 and revised it in July 2018. It calls marketing them for anything except acute mountain sickness off-label. It also says the society doesn't recommend mild hyperbaric therapy for medical use.
What changes between 1.4 and 2.0 ATA
A small 2024 study in Undersea & Hyperbaric Medicine measured tissue oxygen in chronic wound patients at both pressures. The average came in around 161 mmHg at 1.4 ATA and 333 mmHg at 2.0 ATA. Roughly double.
That doesn't make a mild hyperbaric chamber useless. It makes it a different thing from hospital care. If your doctor wants you in HBOT for a condition, book an accredited facility. If you want a regular wellness routine and your doctor's fine with it, a mild chamber at home is far easier to live with.
The four differences that matter
Pressure, oxygen source, supervision and cost separate a home chamber from clinical HBOT. Here's what each one means for you.
1. Pressure
Going from 1.5 to 2.0 ATA doubles the extra pressure. At 1.5 you're carrying half an atmosphere above normal. At 2.0, a whole one. Zippers and fabric can't comfortably hold that, so most soft hyperbaric chambers stop at 1.5 and most 2.0 ATA units are steel. The soft TECNOTU Tecnolay Pro 2.0 ATA is one of the few exceptions. If you want the full breakdown, read our 1.5 ATA vs 2.0 ATA hyperbaric chamber guide.
Here's the part buyers miss. Putting a 2.0 ATA hard shell hyperbaric chamber like the TECNOTU Tecnolay Ultra P in your house gets you the pressure. It doesn't get you the doctor, the oxygen protocol or the FDA clearance.
TECNOTU Tecnolay Ultra 2.0 ATA (Ultra S or Ultra P)$18,950–$23,950 · financing available
For buyers with a clear reason for 2.0 ATA, a dedicated room and the budget for a hard shell.
View product
Vineet's rule of thumb
"I'd only spend $13,000 or more on a hard shell if someone actually needs the higher pressure, wants clinical-style equipment, or has a dedicated room and the budget for it. Otherwise, a 1.3 to 1.5 ATA soft chamber does the job."
2. Oxygen source
Hospitals use near-100% medical oxygen. A hyperbaric oxygen home unit uses a concentrator instead. The TECNOTU 1.5 ATA Recline, for example, ships with a 10 L/min concentrator rated at 90–97% purity. You breathe it through a mask while the chamber around you fills with ordinary air.
Ask any seller, us included, for oxygen concentration and flow in writing. Mask delivery and cabin-diffused oxygen aren't the same setup. Some hard shells, the Ultra P among them, offer an optional built-in breathing system (BIBS) with a mask or hood.
Watch out for "FDA-cleared" claims
The FDA has said the soft zippered chambers it cleared are for altitude sickness and aren't cleared to run with oxygen concentrators. That's why home chambers are sold as wellness equipment and why you'll never see us call ours FDA-cleared. Our guide to prescriptions and FDA rules explains what 510(k) clearance covers.
3. Supervision
At a hospital, someone screens you, seals the door and watches the gauges. At home, nobody does that unless you plan for it. Before your first session:
- Learn where the emergency depressurization valve is and how it works.
- Have another adult in the house, at least for the first few weeks.
- Get a doctor's okay first if you have lung, ear or sinus problems.
- Keep phones, batteries and anything that burns outside the chamber.
- Go short at first, and stop if your ears won't clear.
Our home hyperbaric chamber safety checklist goes further, and our hyperbaric installation support team walks you through inflation, deflation and emergency release on a call.
4. Cost and access
Clinics charge per visit. Customers tell us they've paid $100–$250 a session at clinics and wellness centers. For prescribed hospital treatment, WebMD gives a U.S. range of $200 to $1,250 a session.
At home you pay once, then upkeep. Budget roughly $200–$500 a year for maintenance, and work out electricity from your own model's wattage, not a flat guess. For the break-even point, see is a home hyperbaric chamber worth it. Financing is available, subject to approval.
Clinic or home: which fits you?
Choose a clinic if a doctor has prescribed HBOT or you need monitoring; choose a home chamber if you want regular wellness sessions without booking anything.
When the clinic is the better call
- Your physician has prescribed HBOT for a specific condition.
- You need someone monitoring you during sessions.
- It's a short course with an end date.
- You've never been under pressure and don't know how your ears will cope. We don't rent chambers, so talk to your doctor about a supervised clinic trial first.
When a home chamber makes sense
You want regular sessions without booking anything. Pick by how the person gets in, not by the biggest pressure number:
- Sit or lie, budget first chamber: TECNOTU 1.5 ATA Recline
- Sit up and read or work: TECNOTU TecnoSit Classic sitting chamber
- Stiff knees, stiff hips or a wheelchair: TECNOTU 1.3 ATA Wheelchair Chamber, or browse all seated hyperbaric chambers
A hard shell only makes sense with a clear reason for the higher pressure, a room you can give up, and a floor that can take several hundred pounds. The TECNOTU Single-Person Modular comes apart for narrow stairs. The OxyRevo Quest30 is a one-piece stainless steel tube.
TECNOTU Single-Person Modular Hard Shell$16,450–$22,850 · financing available
Comes apart for narrow doors and stairs; available in 1.5 or 2.0 ATA.
View productThe bottom line
If a doctor has prescribed HBOT for a condition, go to an accredited clinic. A home chamber, even a 2.0 ATA hard shell, doesn't replace supervised medical treatment.
If you want regular wellness sessions and your doctor's fine with it, a 1.3–1.5 ATA soft chamber is the practical choice for most homes. Start with the TECNOTU 1.5 ATA Recline, or browse all home hyperbaric chambers.
Which pressure fits you?
Tell us who'll use it, where it'll go and what your doctor has said. We'll tell you straight whether 1.3, 1.5 or 2.0 ATA is worth it. Financing available, subject to approval.
Frequently asked questions
What's the difference between a mild hyperbaric chamber and clinical HBOT?
A mild hyperbaric chamber runs at 1.3–1.5 ATA with concentrator oxygen through a mask and is sold as home wellness equipment. Clinical HBOT runs at 2.0 ATA or higher with near-100% oxygen, trained staff and physician oversight for specific medical conditions.
Is mild hyperbaric oxygen therapy effective?
Not as a medical treatment, on current evidence. People use home chambers for general wellness; anyone with a condition should follow their physician.
Is a home hyperbaric chamber the same as hospital HBOT?
No. Hospital HBOT uses near-100% oxygen, usually at 2.0 ATA or more, with trained staff present. Home chambers mostly run at 1.3–1.5 ATA on concentrator oxygen and are sold as wellness equipment.
Can a home chamber reach 2.0 ATA?
Yes. Most 2.0 ATA home chambers are hard shells, and a few soft models are rated to 2.0. Most soft chambers top out at 1.5.
How much does a hyperbaric session cost compared with a home chamber?
Customers tell us clinics and wellness centers charge about $100–$250 a session, and WebMD puts prescribed hospital treatment at $200 to $1,250 a session. A home chamber is a one-time purchase, with soft models from about $5,750, plus roughly $200–$500 a year in maintenance.
Do I need a prescription to buy one?
Not for the chambers we sell. Still, talk to a healthcare professional before using any chamber for a health reason.
Sources
- UHMS: Position Statement, Low-Pressure Fabric Hyperbaric Chambers (revised July 10, 2018)
- Sack RA et al. Transcutaneous oximetry at 1.4 ATA vs 2 ATA. Undersea Hyperb Med. 2024;51(1):1-5
- U.S. FDA: Hyperbaric Oxygen Therapy: Get the Facts
- U.S. FDA: Follow Instructions for Safe Use of Hyperbaric Oxygen Therapy Devices
- WebMD: Hyperbaric Chamber
- Manufacturer specifications on selectedcomfort.com product pages, November 2026