Understanding Hyperbaric Chamber Attire: A Complete Guide

If you are preparing for your first hyperbaric oxygen therapy (HBOT) session, one of the most common questions is: What do you wear in a hyperbaric chamber? The answer is crucial for both safety and comfort. Unlike standard hospital gowns or casual clothing, hyperbaric attire is specifically designed to minimize risks inside a pressurized environment.

This guide provides professional insights into the proper attire, covering everything from why you must wear 100% cotton to what types of socks are allowed. For a detailed visual breakdown of approved clothing, you can also check out this comprehensive resource on What Do You Wear In A Hyperbaric Chamber.

Key Requirements for Hyperbaric Chamber Clothing

The primary rule for hyperbaric chamber clothing is the prohibition of synthetic materials. This is due to the high concentration of oxygen inside the chamber. Synthetic fabrics like polyester, nylon, and spandex can generate static electricity, posing a fire hazard in an oxygen-rich environment.

100% Cotton Garments

The most commonly recommended material is 100% cotton. Cotton is breathable, comfortable, and most importantly, does not produce static sparks. Patients are typically asked to wear a cotton t-shirt, sweatpants, or scrubs. All clothing must be free from metal zippers, snaps, or buttons.

Hospital-Provided Scrubs

Many medical facilities provide hospital-laundered cotton scrubs to patients. These are pre-approved for safety and remove any guesswork. If you are unsure about your home clothes, it is best to ask for these scrubs to ensure compliance with safety protocols.

Footwear and Accessories: What to Avoid

The rules extend to your feet and head. Improper footwear is a common mistake for first-time patients.

Orthopedic Shoes and Cleanroom Booties

You will need to remove all street shoes. Many chambers require patients to wear orthopedic booties or cleanroom-style over-shoes that are made of 100% cotton or a fire-retardant material. If these are not provided, you may enter in bare feet, though 100% cotton socks are usually preferred. Never wear nylon or wool socks.

Prohibited Accessories Checklist

Before entering the chamber, you must remove:

• Jewelry (rings, necklaces, earrings)
• Watches and fitness trackers
• Hairpins and metal clips
• Glasses or contact lenses (if not recommended by your technician)
• Hearing aids

Any item that contains metal or plastic components is generally banned because pressure changes can damage them, or they can create friction.

Common Questions About Hyperbaric Chamber Dress Code

Can I wear a bra in a hyperbaric chamber?

Most traditional bras contain metal underwires and synthetic elastic. Medical-grade, 100% cotton underwire-free bras are sometimes allowed, but confirmation with your technician is essential. Many female patients simply wear a cotton sports bra without any metal fasteners