Heat · Steam

HOCATT Ozone Steam Sauna

A personal steam cabinet where you sit with your head outside while your body is warmed by steam and infrared, with carbon dioxide and ozone added inside the cabinet. The maker combines several technologies in one 30 minute session.

Not offered yet. This modality is part of our full center plan and is not available at Calhoun yet. Join the list and we will tell you the day it opens. The open floor is ready now.

How it works

The science, in plain English

01

Heat stresses the body

Whole-body heat raises heart rate and widens blood vessels, the basis of sauna research. Most of that research is on dry saunas, not steam cabinets.

02

CO2 widens skin vessels

In a study of carbon dioxide rich water, skin blood flow signals rose sharply. That was water immersion, and the effect inside a steam cabinet has not been measured.

Maker’s description

Ozone on the skin

The maker describes ozone reacting with the skin as a helpful signal. There is no published evidence that ozone on the skin benefits healthy people.

What the research suggests

Potential benefits

Limited evidence

Warmth and relaxation

Heat bathing is widely enjoyed and well tolerated in healthy people, though this device has not been studied for relaxation.

Early research

Blood pressure

A 2025 review of 20 trials found passive heating did not lower blood pressure overall, with a small drop in a whole-body subgroup.

Early research

Skin blood flow

Carbon dioxide widens skin blood vessels during immersion, but this has not been measured in a cabinet.

Limited evidence

Ozone specific effects

The only human study paired it with another therapy and had no separate control, so it cannot show ozone helped.

How we grade the research. Stronger evidence means several controlled trials or a meta-analysis. Promising means some controlled trials with small or mixed results. Early research means small, lab or animal studies. Limited evidence means little or no independent research.

How it helps you

Where it fits in your plan

Every session is logged next to your labs, brain map and body scan, so at your 90-day re-test you can see what actually moved.

If you

A regular sauna is too much

You get 30 warm minutes with your head outside the cabinet, which many people find easier to handle.

If you

You are curious about heat

Keep expectations modest. The strongest heart data come from long-term traditional sauna use.

If you

You like to track results

Compare resting heart rate, sleep or how you feel across a series to decide if it is worth your time.

Session protocol

What to expect

01

Session length

About 30 minutes in a pre-heated cabinet.

02

Frequency

No evidence-based schedule exists. We set a trial series with you.

03

How it feels

Warm steam and infrared heat, a light buzz at the feet, a faint ozone smell, and a loud fan at the end as the ozone is cleared.

Before your first session. The FDA states that ozone is a toxic gas with no known useful medical application, and breathing it can irritate the lungs. Your head stays outside with a sealed neck opening, and the room is ventilated. Talk with your physician first if you are pregnant or have asthma or lung disease, heart disease, blood pressure problems, heat intolerance or an implanted device.

Straight talk

What the research does not show

Test first. Guess never. We do not claim detox, heavy metal removal, calorie burning or immune effects. Most of the evidence here is about heat, not ozone, and the device is not FDA cleared for any health use.

Sources

The research we read

  1. 21 CFR 801.415, Maximum acceptable level of ozone eCFR, U.S. Food and Drug Administration
  2. Ozone Therapy: What It Is, Uses and Side Effects Cleveland Clinic, 2022
  3. Non-acute effects of passive heating interventions on cardiometabolic risk and vascular health Hamaya et al., American Journal of Preventive Cardiology, 2025
  4. Can POPs be substantially popped out through sweat? Imbeault et al., Environment International, 2018
  5. Effect of carbon dioxide enriched water on the cutaneous microcirculation Hartmann et al., Angiology, 1997

Related modalities

Pairs well with

HeatInfrared SaunaGentle radiant heat and a full sweat.See the science →Infrared Sauna
ColdCold PlungeThe cold half of a contrast routine.See the science →Cold Plunge
CirculationLymphatic DrainageGentle, rhythmic compression.See the science →Lymphatic Drainage

Coming to Calhoun

Want HOCATT Ozone Steam Sauna when it opens?

Join the list and we will tell you the day it is available. The open floor is ready now.

Join the list