jb2, the fan blows air into a set of alum tubes in the cooler (like heat exchanger tubes in a natural gas or propane heater) the Dry Ice is in the cooler,,, the fan forces outside air through the tubes, out the duct to the cockpit,,
Should be no way for any CO2 to get in the car? or am I missing something ?
If that does not cool the air, then maybe just put regular Ice in the cooler and just change out more often,,, the reason I first thought of Dry Ice, is I felt it was colder and would last longer ?
Maybe I am missing something,,, I am not an engineer,,, I am just the driver
Charles