---
title: "Mild Hyperbaric Oxygen Therapy: Inside the Vitaeris 320"
url: https://icryo-stjohns-fl.com/blog/mild-hyperbaric-oxygen-therapy-vitaeris-320
description: "Learn how mild hyperbaric oxygen therapy works, what the soft-shell Vitaeris 320 feels like and who it's for at iCRYO St. Johns, FL."
lang: en
---

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# What Is Mild Hyperbaric Oxygen Therapy? Inside the Vitaeris 320

Updated October 20, 2026 · 3 min read

Image: OxyHealth Vitaeris 320 soft-shell mild hyperbaric chamber at iCRYO St. Johns, FL (https://icryo-stjohns-fl.com/__l5e/assets-v1/d0f6a862-e817-4c94-bff6-e8f74e85a742/mild-hyperbaric-oxygen-therapy-vitaeris-320-st-johns-fl.webp)

Hyperbaric oxygen therapy sounds intense. Pressurized chambers. Oxygen. Medical equipment.

But the experience at iCRYO St. Johns (https://icryo-stjohns-fl.com/services/hyperbaric) is surprisingly calm, thanks to a gentler approach called **mild hyperbaric oxygen therapy** in the soft-shell OxyHealth Vitaeris 320.

Here's what mild hyperbaric therapy is, how the Vitaeris 320 works and what to expect.

New to HBOT? Start with What Is Hyperbaric Oxygen Therapy? (https://icryo-stjohns-fl.com/blog/what-is-hyperbaric-oxygen-therapy)

## What Does "Mild" Mean?

Hyperbaric pressure is measured in **atmospheres absolute (ATA)**:

- **1.0 ATA** is normal air pressure at sea level, which is what we live in here in Northeast Florida
- **About 1.3 ATA** is typical for mild, soft-shell chambers
- **Higher pressures** are used in hospital chambers for specific medical conditions

"Mild" simply means the chamber uses a gentler pressure that's well suited to wellness and recovery routines.

## Meet the Vitaeris 320

The Vitaeris 320 is one of OxyHealth's best-known soft-shell chambers.

- **Soft-shell design:** made of durable, flexible material that inflates as it pressurizes
- **32-inch diameter:** room to lie back comfortably
- **About 4 psi:** roughly 1.3 ATA
- **Zippered entry and viewing windows:** so you can see out and our team can see in

## How Mild Hyperbaric Therapy Works

1. The chamber gently pressurizes around you
2. The added pressure helps more oxygen dissolve into your blood plasma
3. More oxygen can reach your tissues while you rest

Read Hyperbaric Chamber vs. Supplemental Oxygen (https://icryo-stjohns-fl.com/blog/hyperbaric-chamber-vs-supplemental-oxygen) to see why pressure makes the difference.

## What a Session Feels Like

1. **Screening:** we review your health history first
2. **Settle in:** lie down inside the Vitaeris 320, and we zip the chamber closed
3. **Pressurization:** the chamber inflates and your ears may feel full; swallowing or yawning helps
4. **Relax:** rest, listen to music or nap
5. **Depressurization:** pressure slowly returns to normal before we unzip the chamber

Most sessions last about an hour, and there's no downtime afterward.

## Mild vs. Hospital Hyperbaric Therapy

| | **Mild (Vitaeris 320)** | **Hospital HBOT** |
| --- | --- | --- |
| **Chamber** | Soft-shell, inflatable | Rigid medical chamber |
| **Pressure** | About 1.3 ATA | Higher pressures |
| **Typical use** | Wellness and recovery | Specific FDA-approved medical conditions |
| **Setting** | Wellness centers and homes | Hospitals and wound centers |

Mild hyperbaric therapy is a wellness tool. It isn't a substitute for medical treatment.

## Who Uses Mild Hyperbaric Therapy?

- **Athletes and active adults** in training
- **Golfers, runners and beachgoers** after long days in the Florida heat
- **Busy professionals** looking for an hour of restorative downtime
- **People recovering from procedures** (with their doctor's approval)

See Hyperbaric Oxygen Benefits (https://icryo-stjohns-fl.com/blog/hyperbaric-oxygen-benefits).

## Who Should Talk to a Provider First?

Let us know if you have a cold, sinus or ear problem, lung conditions, are pregnant, are claustrophobic or have certain medical devices or conditions. We screen every client before their first session.

## How Many Sessions?

Many benefits are associated with a series of sessions. See How Many Hyperbaric Sessions Do You Need? (https://icryo-stjohns-fl.com/blog/how-many-hyperbaric-sessions)

Ready to try a mild hyperbaric session?

## Hyperbaric Oxygen in St. Johns, FL

iCRYO St. Johns is at **120 Durbin Pavilion Dr Suite 103, St. Johns, FL 32259**, in Durbin Pavilion with free on-site parking. We welcome clients from Fruit Cove, Julington Creek, Nocatee, Ponte Vedra, World Golf Village and St. Augustine.

- See our current intro offers: https://icryo-stjohns-fl.com/deals
- Book your intro visit: https://icryo-stjohns-fl.com/book-now
- Get your free personalized wellness plan: https://icryo-stjohns-fl.com/free-wellness-plan

Questions? Call (904) 513-8877.

## Hyperbaric Oxygen FAQs

What is mild hyperbaric oxygen therapy?

Mild hyperbaric oxygen therapy uses lower pressure than hospital chambers, typically around 1.3 ATA, in a soft-shell chamber. It's used in wellness settings for recovery and general wellness goals.

What is the Vitaeris 320?

The Vitaeris 320 is a soft-shell mild hyperbaric chamber made by OxyHealth. It has a 32-inch diameter and operates at about 4 psi, roughly 1.3 ATA.

How is mild hyperbaric different from hospital HBOT?

Hospital HBOT uses higher pressures in medical chambers for specific FDA-approved conditions. Mild hyperbaric uses lower pressure for wellness and recovery and isn't a substitute for medical treatment.

Is mild hyperbaric therapy comfortable?

Most people find it relaxing. Your ears may feel full as the chamber pressurizes, similar to an airplane, and swallowing or yawning usually helps.

iCRYO St. Johns Team

The iCRYO St. Johns team helps clients across St. Johns County look and feel their best.

## Related Articles

What Is Hyperbaric Oxygen Therapy? How HBOT Works

Hyperbaric oxygen therapy raises the pressure around you so your body absorbs more oxygen. Learn how HBOT works and who it's for in St. Johns, FL.
https://icryo-stjohns-fl.com/blog/what-is-hyperbaric-oxygen-therapy

Hyperbaric Oxygen Benefits for Recovery and Wellness

From recovery to healing support, here are the potential benefits of hyperbaric oxygen therapy and what research shows. iCRYO St. Johns, FL.
https://icryo-stjohns-fl.com/blog/hyperbaric-oxygen-benefits

How Many Hyperbaric Sessions Do You Need?

One session or a series? Learn how many hyperbaric oxygen sessions people typically do, how often to go and how to plan your HBOT routine in St. Johns, FL.
https://icryo-stjohns-fl.com/blog/how-many-hyperbaric-sessions

Learn more about Hyperbaric Oxygen in St. Johns, FL

View the Hyperbaric Oxygen service page →
https://icryo-stjohns-fl.com/services/hyperbaric

Start your wellness journey in St. Johns

Get Your Free Wellness Plan: https://icryo-stjohns-fl.com/free-wellness-plan
Book Your Intro: https://icryo-stjohns-fl.com/book-now

(904) 513-8877 (+19045138877)

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