Nice. I tried an electric power washer on different nozzles when it was around -5F. The column of air above quickly saturated and no snow. I never studied pressure/temp charts but it looked like Gas Nitrogen would make it snow. I was wondering the flow rates of water and flow of liquid CO2 for different temperatures. Hmm. It would probably take supercooling the high pressure water and then cooling that with liquid CO2 to gas. I should go round up all the thrown away dehumidifiers and build a large chiller and make some liquid CO2 also.