3 ms·So they got O2 into the bloodstream. How does the CO2 get out of it?by pestatije 5y agoSo they got O2 into the bloodstream. How does the CO2 get out of it?pfdietz 5y agoIt also dissolves in PFCs. Presumably the PFCs are flushed through the gut and the CO2 is carried out by the outflow. Outside, I imagine the CO2 would come off when the PFC is aerated for reuse.ralusek 5y agoAlso rectum.stuaxo 5y agoVia the lungs ?