5 years ago at the Clean '99 show, CO2 cleaning was all the rage. At Clean '01, there were a few vendors still on the CO2 kick, and then even fewer at Clean '03. In order to maintain CO2 in a liquid form, the washing chamber was huge, and the system to maintain liquid CO2 was quite extensive. I have no idea how this type of system would translate into a home machine -- if it is the same technology. Considering how CO2 washing has not taken off in the dry cleaning industry, I wouldn't bank on this home CO2 dw unit...