---
title: What should I expect during my first session?
description: Learn what to expect during your first Airvida hyperbaric chamber session — from setup and pressure changes to tips for comfort and oxygen delivery.
---
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1. [Chambers 101](https://knowledgebase.airvidachambers.com/chambers?hsLang=en)
2. [Getting started](https://knowledgebase.airvidachambers.com/chambers/getting-started?hsLang=en)
# What should I expect during my first session?
Your first session inside an Airvida hyperbaric oxygen chamber is designed to be **comfortable, quiet, and easy to navigate**, even for first-time users. Here’s what to expect:
---
### 🪑 1. Getting in the Chamber
- **Softshell units** unzip widely for easy entry — some models allow solo entry and exit.
- Bring a **small pillow, water bottle, or tablet** if you’d like comfort items during the session.
- Wear light, breathable clothing.
---
### 📈 2. Gradual Pressurization
- The chamber begins increasing pressure slowly to your selected level (1.3, 1.4, or 1.5 ATA).
- You might feel pressure in your ears — similar to airplane ascent. To relieve this:
- Swallow or yawn
- Use the **pressure adjustment converter** to slow the increase
- Pause pressurization if needed
---
### 🛋️ 3. Relax and Breathe
- Sessions typically last **60–90 minutes**. Use the time to:
- Read, meditate, nap, or listen to music
- Breathe deeply — if using an oxygen concentrator, you'll wear a nasal cannula or mask
- Chamber stays cool and quiet (≤ 50 dB sound level)
---
### ⬇️ 4. Decompression
- At the end, pressure is slowly released
- You'll hear gentle airflow as the chamber returns to normal pressure
- Most users feel **calm, refreshed, or lightly energized**
---
### 💡 Pro Tips for First-Time Users
- Start at **1.3 ATA** if you’re new to pressurized therapy
- Stay hydrated before and after your session
- If you feel lightheaded or uncomfortable, decompress and rest
- Most benefits are seen with **consistent sessions over time**
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