Question

How much oxygen is dangerous ⚠️

Answer 1

Answer:

Contrary to popular myth, hyperventilating air at ordinary pressures never causes oxygen toxicity (the dizziness is due to CO2 levels dropping too low), but breathing oxygen at pressures of 0.5 bar or more (roughly two and a half times normal) for more than 16 hours can lead to irreversible lung damage and, eventually, ...

Answer 2

Answer:

Researchers have found oxygen therapy increases risk of death when given liberally to patients with acute illness, such as heart attack, stroke, and trauma.

What he described was the sensation of inhaling oxygen, which he’d managed to produce through the chemical reaction of heating mercuric oxide.