I sometimes think about using evaporative cooling in a a car, if humidity is low it can be a good alternative, where I live it's only about 20%...
Has anybody tried to use a "swamp filter" somewhere in the ventilation system?
For short distances it might not be necesary to keep that filter swamp, just wet it at the start. The easiest I thougt is like a "straw filter" between two wire mesh to keep everything in place. Just place it in the intake of the ventilation, pour a bottle of water on, and let's go. For a longer effect you need to keep it humid, of course... not difficult though.
I also have seen this
Product Profile
but something like this will hurt aero too much...
Of course this is not valid for folks enjoying +75%
M