i was doing some research, and it seems that while it does absorb some co2, the carbon gets saturated fairly quickly, even scrubbing normal ambient air.. so probably an hour of running a decent sized scrubber, it will be saturated with co2 and not absorb anymore.. i was talking today to the manager of a large hydro place, and he said that he confirmed the same thing and has graphs of all the data, which was way over my head but it still made sense..
just thought id pass it on