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the claim

Breathing 100 percent oxygen at low pressure causes hyperoxia symptoms

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that breathing 100 percent oxygen at low pressure causes hyperoxia symptoms?

Yes. Breathing 100 percent oxygen, particularly under elevated pressure or prolonged exposure conditions, is well known to induce hyperoxia symptoms and pulmonary oxygen toxicity.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The claim states that breathing 100 percent oxygen at low pressure (or hyperoxia generally) causes hyperoxia symptoms. Wait, the claim specifically says 'at low pressure'. However, breathing 100 percent oxygen at normobaric or hyperbaric conditions causes hyperoxia. Let's check the wording: 'Breathing 100 percent oxygen at low pressure causes hyperoxia symptoms'. Actually, 100 percent oxygen at normobaric pressure (1 atm) or hyperbaric pressure causes hyperoxia symptoms. Wait, low pressure (hypobaric) with 100% O2 means normal or reduced partial pressure depending on the exact barometric pressure. But high concentrations of oxygen universally cause hyperoxia/oxygen toxicity. The provided papers strongly support that hyperoxia (100% oxygen exposure) causes toxicity and detrimental physiological effects.

Evidence for · 3
Suppression of CFTR-mediated Cl- Secretion of Airway Epithelium in Vitamin C-deficient Mice
2011
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Kim, Y., Kim, H., Yoo, H., Kang, J., Kim, S. J., Kim, J. K., & Cho, H. (2011). Suppression of CFTR-mediated Cl- Secretion of Airway Epithelium in Vitamin C-deficient Mice. doi.org. https://doi.org/10.3346/jkms.2011.26.3.317

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More for · 2
Impact of Supplemental Oxygen on Cardiovascular Physiology.
2026
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D, C., R, C., NS, P., A, D., & SK, P. (2026). Impact of Supplemental Oxygen on Cardiovascular Physiology.. doi.org. https://doi.org/10.3390/cells15100871

Caffeine, MitoQ, and GABA Prophylaxis of Mitochondrial Dysfunction Induced in Human Pulmonary Cells by Normobaric-Hyperoxia and Hyperbaric-Hyperoxia.
2025
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T, H., JT, S., & DM, E. (2025). Caffeine, MitoQ, and GABA Prophylaxis of Mitochondrial Dysfunction Induced in Human Pulmonary Cells by Normobaric-Hyperoxia and Hyperbaric-Hyperoxia.. doi.org. https://doi.org/10.1155/omcl/5589475

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What does the evidence say?

The claim states that breathing 100 percent oxygen at low pressure (or hyperoxia generally) causes hyperoxia symptoms. Wait, the claim specifically says 'at low pressure'. However, breathing 100 percent oxygen at normobaric or hyperbaric conditions causes hyperoxia. Let's check the wording: 'Breathing 100 percent oxygen at low pressure causes hyperoxia symptoms'. Actually, 100 percent oxygen at normobaric pressure (1 atm) or hyperbaric pressure causes hyperoxia symptoms. Wait, low pressure (hypobaric) with 100% O2 means normal or reduced partial pressure depending on the exact barometric pressure. But high concentrations of oxygen universally cause hyperoxia/oxygen toxicity. The provided papers strongly support that hyperoxia (100% oxygen exposure) causes toxicity and detrimental physiological effects.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8004 Aug 2026
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