What to Wear in a Hyperbaric Chamber: Essential Clothing Guide for Safety and Comfort
When preparing for a hyperbaric oxygen therapy (HBOT) session, one of the most common questions is: What To Wear In A Hyperbaric Chamber. The answer goes beyond simple comfort—it directly impacts your safety and the effectiveness of the treatment. Hyperbaric chambers create a controlled environment with increased atmospheric pressure and pure oxygen. Any material that can generate static electricity, trap heat, or retain flammable substances creates a serious fire hazard. Understanding the correct clothing choices ensures you stay comfortable, avoid burns, and maximize oxygen absorption.
The primary rule is to wear 100% cotton garments. Cotton is a natural fiber that does not produce static electricity, which is crucial in a pure oxygen environment. This rule applies to everything: shirts, pants, socks, and even undergarments. Polyester, nylon, and synthetic blends are strictly prohibited because they can generate sparks through friction. For most standard sessions, a simple cotton T-shirt and loose cotton pants are ideal. Avoid any clothing with metal components like zippers, buttons, snaps, or underwire bras. These metal pieces can overheat and cause burns under pressure.
Safe Fabrics and Materials for Hyperbaric Sessions
Beyond just wearing cotton, you must consider the fabric composition of every item. Many fabrics look like cotton but contain hidden elastane (spandex) for stretch. Always check the laundry tag. Medical-grade hyperbaric gowns are often used in clinical settings because they are made from 100% cotton or specific fire-retardant materials approved for oxygen-enriched environments. For home or portable chambers, the same rule applies. For more detailed information on fabric safety and specific recommendations, you can check What To Wear In A Hyperbaric Chamber to ensure complete compliance with safety protocols.
Opting for 100% Cotton Garments
Your entire outfit should be 100% cotton. This includes your shirt, pants, socks, and underwear. Cotton breathes well, which helps regulate your body temperature inside the chamber. As pressure increases, the temperature can rise slightly, so breathable layers are beneficial. Avoid denim, as it often contains metal rivets and may have synthetic blends. Look for soft, organic cotton options for maximum comfort.
Avoiding Synthetic Fibers and Elastane
Never wear clothing containing spandex, lycra, rayon, nylon, or polyester. These synthetic polymers easily create minor cracks or friction, generating static discharge indoors. This is the primary cause of fires in hyperbaric chambers. Even items labeled “cotton blend” can be dangerous. If you are unsure, do not wear it.
Footwear and Accessory Choices
Footwear is a piece many overlook when asking what to wear in a hyperbaric chamber. The rule is simple: no shoes allowed. Regardless of the material, shoes bring in contaminants and debris that could be flammable or damage the chamber seal. You must remove your shoes before entering. Socks are mandatory, but they must be 100% cotton. They protect your feet from minor irritation and should be seamless to avoid pressure marks.
Cotton Socks and Barefoot Confirmation
Wear plain white cotton socks as part of your hyperbaric chamber