Hyperbaric Chamber vs Oxygen Concentrator

Carbon Wellness sells hyperbaric chambers that come with an oxygen concentrator. This guide explains what each device does on its own, how they work together, and when a concentrator alone may be the better fit.

People often compare a hyperbaric chamber and an oxygen concentrator because both involve breathing more oxygen. They are not two versions of the same thing, though. One is a pressure vessel, and the other is an oxygen source.

In most home setups, you do not pick one over the other. The concentrator sits outside the chamber and feeds oxygen to a mask you wear inside.

Here is how each one works, what changes when you put them together, and who needs which.

Hyperbaric Chamber vs Oxygen Concentrator: Side-by-Side

Chamber prices are from the current Carbon Wellness lineup. Concentrator prices vary by brand, flow rate, and whether the unit is portable.

What Is an Oxygen Concentrator?

An oxygen concentrator is a machine that makes concentrated oxygen from the air in your room. Normal air is about 21% oxygen and mostly nitrogen.^[1]

The concentrator draws air in, pushes it through filters called sieve beds that trap nitrogen, and sends the remaining oxygen out through a tube. Most home units deliver oxygen at roughly 90 to 96% purity, at flow rates from about 1 to 10 liters per minute. Our guide on how an oxygen concentrator works goes through each step.

The key point is that a concentrator does not change the pressure you breathe at. You get more oxygen in each breath, but at the same air pressure as the rest of your home.

Doctors prescribe oxygen for people whose blood oxygen runs low, such as people with COPD or other lung conditions.^[2] Many people use a concentrator for hours each day or through the night. If you are curious about overnight use, see our guide on sleeping with an oxygen concentrator.

What Is a Hyperbaric Chamber?

A hyperbaric chamber is a sealed chamber that raises the air pressure around your body above normal. Pressure is measured in ATA (atmospheres absolute), and normal air at sea level is 1.0 ATA. Every extra 1 ATA equals the pressure of about 33 feet of seawater.^[3]

Home chambers usually run between 1.3 and 2.0 ATA:

• 1.3 ATA: about 10 feet underwater
• 1.5 ATA: about 16 feet underwater
• 2.0 ATA: about 33 feet underwater

Soft shell chambers are inflatable and usually run at 1.3 to 1.5 ATA. Hard shell chambers are rigid steel and can reach 2.0 ATA. Our guide to hard shell vs soft shell hyperbaric chambers compares the two types.

Hospitals use chambers too, usually at higher pressures. Cleveland Clinic describes hospital hyperbaric oxygen therapy (HBOT) as breathing 100% oxygen at two to three times normal air pressure.^[1]

Hyperbaric Oxygen Therapy vs Oxygen Concentrator: How Much Oxygen Reaches Your Body?

This is the core of the hyperbaric oxygen therapy vs oxygen concentrator comparison. Your blood carries oxygen in two ways: bound to hemoglobin in red blood cells, and dissolved in the liquid part of your blood, called plasma. Normally, about 98% of the oxygen in your blood is bound to hemoglobin and only about 2% is dissolved.^[4]

In most healthy people, hemoglobin is already close to full when breathing normal air. So extra oxygen at normal pressure mostly tops up a system that is nearly full. Pressure is what lets much more oxygen dissolve into the plasma. The amount of gas that dissolves in a liquid rises in step with that gas's pressure, a rule known as Henry's law.^[3]

One simple way to compare setups is oxygen partial pressure: the share of oxygen you breathe multiplied by the pressure you breathe it at.^[3]

Rough figures assuming about 93% oxygen from the concentrator. The real number depends on mask fit and flow rate.

Two things stand out. Pressure with regular air alone adds very little, and a concentrator alone adds a fair amount. The biggest jump comes from using both together, which is why many home chambers are sold with a concentrator or include a port to connect one.

Oxygen numbers are not the whole story, though. Pressure itself appears to affect the body, and some clinicians report that mild and higher pressures seem to produce different effects rather than simply more or less of the same thing. Research comparing them is still limited.

Does a Home Session Count as Hyperbaric Oxygen Therapy?

Definitions vary. One medical reference describes HBOT as 100% oxygen at a minimum of 1.4 ATA.^[5] The Undersea and Hyperbaric Medical Society uses a stricter definition for clinical HBOT: a prescribed treatment in a hard-sided chamber at no less than 2.0 ATA, breathing medical-grade oxygen above 99% purity.^[6]

A concentrator alone never meets either definition, because the pressure stays at 1.0 ATA. Home sessions, which use milder pressures and concentrator oxygen, are better described as mild hyperbaric therapy.

Edge goes to: the hyperbaric chamber, as long as it is paired with a concentrator.

Hyperbaric Chamber vs Oxygen Mask

Breathing through an oxygen mask at home and breathing through a mask inside a chamber can look the same. The difference is what surrounds you.

A mask on its own raises the share of oxygen in each breath, but the pressure stays normal. Inside a chamber, the same mask delivers that oxygen at higher pressure, so more of it dissolves into your blood.

Mask type matters as well. A nasal cannula mixes the concentrator's oxygen with room air, so the air you actually breathe ends up far below the concentrator's output. Even at 4 to 6 liters per minute, a standard cannula delivers only about 37 to 45% oxygen.^[7] A snug face mask or hood keeps far more of the concentrator's output, which is why chambers use a mask rather than a cannula.

In short, a mask is a delivery tool. Whether you get the benefit of pressure depends on whether you are wearing it inside a chamber.

How a Hyperbaric Chamber With an Oxygen Concentrator Works

A home hyperbaric chamber with an oxygen concentrator uses two separate machines that do two separate jobs:

• The air compressor pumps filtered room air into the chamber and raises the pressure.
• The oxygen concentrator sits outside the chamber and sends concentrated oxygen through a hose to the mask you wear inside.

The chamber itself stays filled with regular air, not pure oxygen. Only the air you breathe through the mask is concentrated, which keeps the oxygen level inside the chamber low and lowers fire risk.

A session follows three steps. The compressor fills the chamber to your chosen pressure, you breathe from the mask while you relax, and then the pressure slowly comes back down.

Most soft chambers in our lineup ship with a concentrator, so the oxygen source is already matched to the chamber.

Do You Need a Special Oxygen Concentrator for a Hyperbaric Chamber?

Not a special type of concentrator, but it does need to suit the job. An oxygen concentrator for a hyperbaric chamber has to push oxygen into a space that is under pressure, which is harder than sending it into open air.

Here is what usually matters:

• Flow rate: home chamber setups commonly use a 10 liter per minute concentrator, so the mask gets a steady supply.
• Oxygen purity: look for a unit that holds around 90% or higher at the flow rate you use.
• Output pressure: the concentrator needs enough push to deliver oxygen against the chamber's pressure.
• Continuous flow: many small travel concentrators deliver oxygen in short pulses when you inhale rather than a steady stream, which makes them a poor match for a chamber.
• Placement: it always stays outside the chamber, in a ventilated spot away from heat sources.

The simplest route is to use the concentrator that comes with your chamber, or one the chamber's maker approves.

Hyperbaric Chamber vs Oxygen Concentrator Cost

A standalone oxygen concentrator costs far less than a hyperbaric chamber. Home units usually range from several hundred to a few thousand dollars, depending on flow rate and brand.

The Carbon Wellness chamber lineup runs from $7,499 for the Elite32 soft shell chamber to $48,999 for the Space60 Pro hard shell chamber. Those prices include the concentrator, so you are not buying it separately.

Running costs are closer than the purchase prices suggest. A concentrator uses electricity whenever it runs, and a chamber adds a compressor that runs during each session. Our guide on the cost to run an oxygen concentrator breaks down the power side.

If you want to try a chamber before buying, you can rent a chamber first.

Edge goes to: the oxygen concentrator, by a wide margin on price.

Safety Basics for Both

Both devices involve concentrated oxygen, so fire safety comes first. MedlinePlus advises keeping oxygen at least 6 feet from open flames and heaters, never smoking in a room where oxygen is in use, and storing it where air can move freely.^[8]

• Keep the concentrator outside the chamber. Never place it inside, and never fill the chamber with oxygen.
• Leave electronics, lotions, and oils out. MedlinePlus warns against petroleum-based creams and lotions on the face and upper body when using oxygen.^[8]
• Wear cotton in the chamber. The FDA recommends hyperbaric-compatible fabrics such as cotton, since some fabrics build up more static.
• Clear your ears in the chamber. Pressure changes can make your ears feel full, like on a plane. Swallowing or yawning helps.^[1]
• Follow the manual. The FDA asks users to follow the manufacturer's instructions for every hyperbaric device.
• Talk to your doctor first if you have lung disease, a seizure disorder, recent ear or sinus surgery, or are pregnant.^[1]

Our guide to hyperbaric chamber certifications covers what to check before you buy.

Hyperbaric Chamber or Oxygen Concentrator: Which Do You Need?

The right choice depends on why you want more oxygen in the first place.

Choose an Oxygen Concentrator If:

• Your doctor has prescribed oxygen for low blood oxygen
• You need oxygen for many hours a day or overnight
• You want to move around the house or travel with your oxygen
• Your budget is a few thousand dollars or less

If you have COPD or another lung condition, a hyperbaric chamber is not a replacement for prescribed oxygen. The American Lung Association also warns that non-prescription portable concentrators sold online may not meet your oxygen needs, and recommends talking to your provider before buying one.^[2]

Choose a Hyperbaric Chamber If:

• You want the added effect of pressure, not just extra oxygen
• You plan to use regular timed sessions for wellness or recovery
• You want a setup you can use at home instead of booking clinic sessions
• You have room for a bed-sized chamber and its equipment

For medical conditions that need HBOT, such as non-healing wounds or carbon monoxide poisoning, hospital treatment is the right path. A home chamber is not a substitute for that care.

Common Mix-Ups

"A concentrator at home is the same as a hyperbaric session."
Not quite. A concentrator raises the share of oxygen you breathe, but without added pressure, much less of it dissolves into your blood.

"Hyperbaric chambers are filled with pure oxygen."
Home chambers are filled with compressed regular air. The concentrated oxygen goes only to your mask. Some hospital chambers do fill with 100% oxygen, under medical supervision.

"A chamber without a concentrator still gives you most of the benefit."
At 1.3 ATA with regular air, oxygen pressure rises only about 30%. The concentrator and mask are what make the bigger difference.

FAQ

Can I use my own oxygen concentrator with a hyperbaric chamber?

Sometimes, but check with the chamber's maker first. The concentrator needs enough continuous flow and output pressure to deliver oxygen into a pressurized chamber. Using the one that comes with the chamber is the simplest choice.

Is an oxygen concentrator the same as hyperbaric oxygen therapy?

No. A concentrator delivers concentrated oxygen at normal air pressure. Hyperbaric oxygen therapy combines near-100% oxygen with added pressure, at least 1.4 ATA by one common definition and at least 2.0 ATA by the UHMS clinical definition.^[5][6]

Do you need a prescription for an oxygen concentrator?

In the US, medical oxygen concentrators require a prescription. Some lower-output units are sold without one, but they may not meet the needs of people with lung conditions.^[2] FDA-cleared soft hyperbaric chambers for home use also need a prescription.

Can you use a hyperbaric chamber without oxygen?

Yes. A chamber can run on compressed air alone, commonly known as hyperbaric air therapy (HBAT). At mild pressures, though, the added oxygen is small. Most home users breathe from a concentrator and mask during sessions.

Is a hyperbaric chamber better than an oxygen mask?

They do different things. A mask raises the oxygen in each breath, while a chamber adds pressure. Wearing the mask inside the chamber gives you both, which is how most home sessions work.

Where does the oxygen concentrator go during a session?

Outside the chamber, in a ventilated spot away from heat and flames. A hose carries the oxygen through a port in the chamber to your mask.

Final Takeaway

When comparing a hyperbaric chamber vs an oxygen concentrator, the concentrator supplies the oxygen and the chamber supplies the pressure. On its own, a concentrator is the right tool for prescribed, everyday oxygen. A chamber is built for timed sessions where pressure is the point.

For most people looking at home hyperbaric sessions, it is not one or the other. The two work as a pair, and every Carbon Wellness chamber comes with its concentrator.

If you have questions about which setup fits your space or goals, our team is happy to help.

References

1. ^ "Hyperbaric Oxygen Therapy". Cleveland Clinic. Retrieved October 25, 2026.
2. ^ "Oxygen Therapy". American Lung Association. Retrieved October 25, 2026.
3. ^ Jones MW, Brett K, Han N, Cooper JS, Wyatt HA (2024). "Hyperbaric Physics". StatPearls. Treasure Island (FL): StatPearls Publishing. PMID 28846268.
4. ^ Patel S, Jose A, Mohiuddin SS (2023). "Physiology, Oxygen Transport and Carbon Dioxide Dissociation Curve". StatPearls. Treasure Island (FL): StatPearls Publishing. PMID 30969637.
5. ^ Gawdi R, Yrastorza J, Cooper JS (2025). "Hyperbaric Oxygen Therapy Contraindications". StatPearls. Treasure Island (FL): StatPearls Publishing. PMID 32491593.
6. ^ "Indications for Hyperbaric Oxygen Therapy". Undersea and Hyperbaric Medical Society. Retrieved October 25, 2026.
7. ^ Sharma S, Danckers M, Sanghavi DK, Chakraborty RK (2023). "High-Flow Nasal Cannula". StatPearls. Treasure Island (FL): StatPearls Publishing. PMID 30252327.
8. ^ "Oxygen Safety". MedlinePlus, U.S. National Library of Medicine. Retrieved October 25, 2026.