Upon entering the warm building, the warm air around your cold glasses condense to form miniscule water droplets that will cloud your vision.
It has to do with the temperature and dew point on that particular day.
Fog description is description of fog.
condensation, when an object goes from a cool place to a warm place, or vice versa, the change in air temperature forms a dew like liquid; condensation
Fog that isn't thick
The rear window defog relay is what keeps fog from building up on the rear window. It works by using current to warm the window to prevent moisture buildup that can hinder visibility.
the light doesnt go through the fog
Warm water has more fog due to great humidity
If the previous day was very warm, and the overnight air is very cool, ground fog is common in the morning.
Try looking out the window
A warm front brings rain and fog
warm air and cold air gets together and make fog
Upon entering the warm building, the warm air around your cold glasses condense to form miniscule water droplets that will cloud your vision.
Warm air contains more moisture than cold air. The air hits the cold window and the moisture is deposited on the cold glass. It is the same effect that causes your glass full of a cold beverage to start to drip down the sides.
It is the moisture leaking through the seal of the window. The moisture collects between the window panes and makes the glass fog up. I do not know how i can fix it. I think you just have to buy an all new window.
Misting, or condensation.
Fog can occur during a warm front.