Hard to be objective at this time as I also breathed some pure oxygen for a few minutes until I became dizzy. Doing at bit of reading I discovered cold water absorbs more than double of hot water. I can put tightly capped bottles of hot water in the refrigerator to create a better sponge medium. Also cranking up the pressure to 4 or 5 atmospheres greatly enhances absorption compared to 25 PSI that I used earlier. It's called Henry's law more here http://antoine.frostburg.edu/chem/senese/101/solutions/faq/predicting-DO.shtml