From what I understand CO2 drycleaning is essentially heating and pressurizing Co2 until it is at a supercritical state and then using it as a solvent to wash clothing. I just don't understand why clothing that comes out of the resulting process would be cold. Doesn't supercritical carbon dioxide require temperatures of at least ~300 Kelvin to form? Anyway, I would greatly appreciate it if someone with more knowledge on the subject could provide a basic outline as to how CO2 dry-cleaning works. There are very few resources that go into detail on the process.