The reason frost forms on windows is due to the dew point and temperatures. The dew point is a temperature at which water in the air will condense into liquid H2O. In this case the H2O has reached the dew point and has actually frozen due to reaching a temperature of or less than 32 degrees Fahrenheit.
Condensation.
moisture from your breathing for example condensing on the cold glass
Ive only once had a problem with foggy windows, but I was told to wash the interior windows with winter windshield washer and they will never fog up or freeze.
winter
well it could be because of the heat. if its cold out and you have the heat on in the car, then you will get hot and that will cause the window to fog.
Well there is an easy way and a hard way, first, you could only do whatever it is you are up to in the winter, it will be colder and when you blow on the windows mist or fog comes up, or you could boil a kettle in their. Hope you got a backseat and a boyfriend or a girlfriend ; )
Fog inside the house can occur when warm, moist air comes into contact with a cold surface, causing the air to cool and condense into tiny water droplets. This can happen near windows or doors that are poorly insulated, or in areas with high humidity levels. Adequate ventilation and temperature control can help reduce fog inside the house.
heater core is going bad.
check owners manual i think its a bad design in which this model requires the a/c to be on at all times that the defroster/defogger is on, otherwise the windows will fog up this is horrible while its rain during warm weather
It is called condensation, warm and humid inside, cooler outside.
If the heater core is ok, check to insure your ac unit is working. The ac works in conjunction with the heat when running defrost, and without the ac air windows will fog up .
Two people, breathing heavily. There's a lot of water vapor in your breath, and when two people are going at it they breathe a lot more causing more water. If it's cold outside, the windows fog up like crazy.
Windows fog because the glass is cold and the humidity is high inside the car. It has nothing to do with the age of the car. Try turning the fan up to circulate the air better, and if that doesn't work, turn the AC on -- but turn the heat up so it doesn't get cold. That will do it for sure.