jjeff said:First I'd purchase WeatherTech or similar floor mats that hold the water from soaking into the carpet or carpet mats. I'd also try and clean out(suck up with a shop vac or use a towel) the water from melting snow etc. from the floor mats to keep the liquid from evaporating into the air. Another trick is to keep your windows cracked(if it's not actively snowing or raining) which helps get the humid air inside the car out and dry outside air in. What's happening more than likely is the water is evaporating inside the car and that very humid air is condensing on the windows, you want to try and eliminate the water before it evaporates. You could also try and use the defrost mode which runs the heat and AC which helps remove humidity from the air but that uses even more power than just heat alone but does help remove humidity.
You said fogging which implies you may be in a southern climate, we get fogging in the summer and frosting which is even harder to remove in the winter. In our case, the humid cabin air freezes on the cold windows.
You could also try and make use of pre-heating your car and again crack the windows. Preheating will get the cabin toasty warm and with the windows cracked that humid air can get our and dryer outside air will get in the cabin.
LHN said:I have also found that if you make sure the "recirc" button is off, the windows don't fog up as much.
LeftieBiker said:It depends. If the A/C will be staying on, then Recirc keeps the humidity lower. If you will only be running it briefly, then it's usually better to turn Recirc off.
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