I read somewhere that the reason people feel the need to breathe because of carbon dioxide building up in the body. So if you were to be per say in a room filled with just pure oxygen or some other gas other then carbon dioxide, would it be possible to suffocate due to lack of oxygen without getting that tight feeling in your chest that compels you to breathe? I.e you’re still inhaling and exhaling, but you don’t feel the tight chest feeling, while simultaneously suffocating
In: Biology
Yes, anything that displaces the oxygen in the air without adding carbon dioxide won’t be noticed. Hypoxia can hit pilots at altitude if they are not careful. It interferes with the brain so they don’t notice that they are not thinking clearly and becoming sleepy. Or look up OSHA’s rules and information on confined space entry. There is usually one or two incidents a year in the USA of workers being careless entering tanks, vaults or sewer pipes without checking the oxygen concentration. They pass out suddenly. Worse is when coworkers can see them and go in to try to get them out. Worst I’ve heard of is 5 guys one after the other. All dead within 30 feet of the entrance.
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