Quote: (Originally Posted by
jradomski)

I have been in very warm water (80f) and was working hard.. The gas was so hot I almost bailed to OC.. So I agree in some case, temp drop is needed.. at this temp on a radia scrubber direction would have had little bearing at all.. as the gas was much hotter than it had to be.. The flow direction has its greatest effect at low temperatures.. it really becomes insignificant at elevated temps..
I had exactly the same experience. It felt like breathing in and out of a paper bag, without the CO2.
My neoprene scrubber-cosy didn't seem so clever at the time.