Lots of folks asking where the CO2 is expelled from. I speculate, due to the lack of information, it's still being expelled through the lungs the usual way. Alt

Lots of folks asking where the CO2 is expelled from. I speculate, due to the lack of information, it's still being expelled through the lungs the usual way. Although, I suppose it's possible the CO2 is diffusing out the intestines and into the perflurocarbons.