owen-cox
Active member
Apparently it causes an acid to be formed in the blood which does the poisoning. This then attacks parts of the body including the brain causing confusion and bad judgement. Then ultimately unconsciousness not a good thing I would say in any circumstances but especially on a yacht. If the concentration is above 15% it can cause death in 1 minute. Put it this way I dont want to be on a boat with it full stop.Not advocating the introduction of CO2 in an enclosed space but, unlike CO, it is very unlikely CO2 would cause death whilst sleeping. Very modest elevation will induce hyperventilation which will wake you quickly.
I'm surprised to hear of it's use in stunning animals - I suspect this practice would not meet UK welfare standards and is an economic choice.