While reading this - Surviving under water in air bubble - this question came to me:

How long can an adult person survive on breathing in only exhales of another adult person? Can this be even calculated by not relying on rough approximations or there are too many variables?

In order CPR (mouth to mouth breathing part) to be effective, logic says that exhaled "air" is not poisonous to bring a fatal blow, but for how long?


Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.