Anyone know what the recovery time is after CO2 (hopefully not CO) exposure is?
I've always assumed that once you're back out in fresh air/passage you start to feel better almost right away. But I've had a couple of instances where I'm wondering if there's a more delayed effect too, in that fitness/stamina seems to not recover for a day or so longer than would usually be the case with 'just' going caving. - I know it's very variable and subjective to measure how you feel after a trip, and hard to pinpoint actual causes, with plenty of confounding factors (beer, age, coughs, et al).