Anecdotally I've heard that oxygen is toxic at higher-than-atmospheric pressure. Your link does mention oxygen toxicity, but I didn't notice any discussion of t

Anecdotally I've heard that oxygen is toxic at higher-than-atmospheric pressure. Your link does mention oxygen toxicity, but I didn't notice any discussion of the antidote. I wrote a blog post, which I intend to submit for fact-checking some day: https://www.taxiwars.org/2021/06/folly-medical-hyperventilation.html https://www.taxiwars.org/2021/06/folly-medical-hyperventilat... After posting that I figured out how the antidote for oxygen toxicity got memory-holed. It was in the 1950's, and ... there was a little protest, circa 1959, saying the new guidelines weren't so great for carbon monoxide poisoning. My email address is in my profile, drop a line with a link to this comment and I'll provide more references.