<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Hi All,</DIV><DIV> Looking for a good source for the CO2absorbent, I would like to get the violet color changing type, ( or any color ) . What is a good particle size for a scrubber that will be using computer fans as the circulating fans? Seems like too fine a particle, the more air flow resistance. I was going to have a volume of approximately 5" in diameter by 12" deep.</DIV><DIV> </DIV><DIV>Brian Cox</DIV></DIV>