Nasal cannula vs. BIBS — is the upgrade worth it? Since you get oxygen either way, the real question isn't "do I get oxygen?" but how reliably and at what concentration it reaches you. This episode breaks down the difference and gives you the questions to ask before you configure your chamber.Key Highlights

• The core distinction: supplemental oxygen (nasal cannula) vs. a dedicated oxygen breathing system (BIBS).
• Nasal cannula: an open delivery system — oxygen can mix with surrounding chamber air, so inhaled concentration varies with breathing pattern and flow.
• BIBS (Built-In Breathing System): a dedicated mask and breathing circuit — properly fitted masks have reached 96-99% inspired oxygen in testing.
• Misconception clarified: BIBS isn't just "more litres per minute" — some systems use demand delivery, supplying oxygen as you inhale rather than continuously.
• What actually matters: not the flow rate number, but how effectively oxygen reaches the person breathing it.
• Do you need BIBS? Not automatically — standard nasal cannula is a reasonable, simple, comfortable choice for many users.
• When BIBS makes sense: premium hard shell chamber ownership, where dedicated and controlled oxygen delivery matters to you.
• The real value of BIBS: not more oxygen, but a better delivery method for the oxygen you're breathing.
• The engineering reason: oxygen needs careful management inside any hyperbaric environment — a dedicated breathing circuit keeps it more separate from surrounding chamber air.
• The right question to ask a supplier: not "does it have an oxygen concentrator?" but "how is oxygen delivered, through what interface, and at what concentration?"
• Key insight: two chambers can share the identical oxygen concentrator and still deliver oxygen very differently depending on the interface.