Fire safety in hyperbaric chambers: why the rules are strict
If you've had a hyperbaric session, you'll know the list: no phones, no lotions, no hair products, cotton clothing only. These rules can seem fussy. They exist because of fire safety.
Why oxygen raises the stakes
Fire needs three things: fuel, heat and oxygen. In an oxygen-rich, pressurized environment, materials catch fire more easily and burn faster and hotter than in normal air. Things that would barely smolder in your living room can ignite quickly.
Fires in hyperbaric chambers are very rare, but they have happened, and they can be serious. That's why the industry follows strict safety standards, including the National Fire Protection Association's code for health care facilities (NFPA 99).
What you'll be asked to leave outside
- Phones, tablets, smartwatches and other electronics. Batteries can spark or overheat.
- Hand warmers, lighters and matches. Obvious ignition sources.
- Lotions, oils, petroleum jelly, hair products, makeup and perfume. Many are flammable and oil-based.
- Synthetic clothing such as nylon or polyester, which can build up static electricity. Cotton is preferred.
- Jewelry, watches and hairpins, partly for safety and partly so they don't scratch the chamber.
- Newspapers or loose paper, depending on the facility.
What providers do
- Ground the chamber and control static
- Check every guest before entry
- Maintain and inspect equipment regularly
- Train staff in emergency procedures
What you can do
- Shower beforehand and skip products on session days.
- Wear the cotton clothing provided, or your own 100% cotton clothes.
- Empty your pockets fully.
- Ask before bringing anything in, even a book or magazine.
These rules aren't about distrust. They're the reason hyperbaric therapy has such a strong safety record. Thanks for following them.
See also: HBOT side effects and safety.