What Do You Wear In A Hyperbaric Chamber? The Complete Dress Code Guide
When preparing for a session inside a hyperbaric chamber, one of the most common questions is: What Do You Wear In A Hyperbaric Chamber? The answer is not just about comfort—it is about safety. Unlike regular clothing, which can pose fire or contamination risks, hyperbaric therapy requires specific attire. In this guide, we will break down the essential items you need, explain why standard clothes are not allowed, and provide tips to ensure your session is both safe and effective. For a quick reference on approved apparel, check out this resource on What Do You Wear In A Hyperbaric Chamber.
Why Attire Matters in a Pressurized Environment
Hyperbaric chambers increase atmospheric pressure, which changes how materials react. Synthetic fabrics like polyester or nylon can generate static electricity, creating a fire hazard inside the oxygen-rich environment. Additionally, clothing with metal zippers, buttons, or snaps can spark. Even items like underwire bras or jewelry are often banned. The goal is to reduce combustible risks while maintaining patient comfort. Typically, facilities provide or require 100% cotton hospital gowns or scrubs. Cotton is preferred because it is naturally static-resistant and breathable under pressure changes.
Essential Items: The Approved Attire Checklist
Below is a detailed breakdown of what you should wear or avoid. Always confirm with your specific facility, but these guidelines apply to most medical and wellness chambers:
Top Wear & Shirts
Your top should be a loose-fitting, 100% cotton shirt. Avoid any clothing with logos printed using metallic inks. T-shirts that are plain white or solid colors are typically allowed. If the chamber is cold, a thin cotton sweater or hoodie (without metal drawstrings) can be worn. Do not wear polyester or nylon workout shirts.
Bottoms & Pants
For lower body wear, cotton sweatpants or cotton pajama pants are ideal. Jeans are controversial: while some facilities permit them (if 100% cotton and without metal rivets), many ban them due to thick seams that might trap air. It is safer to choose elastic-waist cotton pants. Avoid cargo pants with many pockets or velcro.
Footwear & Socks
You will almost always be asked to remove your shoes before entering the chamber. Only clean, non-slip socks are allowed inside. If you must have foot protection, use hospital-provided cotton booties. Do not wear slippers or any footwear that could kick off and create projectiles.
Underwear and Belongings
Underwear must be 100% cotton. Remove all undergarments with metal clasps, such as bras with underwire. A cotton sports bra is often the best choice. Also remove all jewelry, watches, hearing aids, glasses, contact lenses, dentures, and wigs. You will be provided a secure locker outside the chamber for these items. Some chambers allow thin cotton robes, but check first, as fabric bunching can be a hazard.