Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

Levels above 1000ppm are shown to cause cognitive impairment. 3000ppm is absolutely harmful.

>our lungs are constantly dealing with much higher concentrations

After gas exchange. Not with inhaled air.



>After gas exchange. Not with inhaled air.

gas exchange is continuous, not a discrete event that only takes place just after fresh air enters the lungs.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: