One of the suckest thing about driving your car in the winter is when your car front windshield is completely fogged up. You try to wipe the fog out with a towel and that doesn’t do much. You are already late for work, so you don’t have time to wait for it to disappear.
What is the optimal way of defrosting your windshield? Which buttons or techniques should you be using to defog your windows in the fastest way possible?
Let’s learn a little bit about what makes the window fog up anyways. The fog you see is really just droplets of water condensation. It is the same as the dew in the morning, the condensation on the outside of a cold can or what appears on your shower mirror after a hot shower. This happens when humidity reaches 100% then the water droplets clump together and form condensation.
What you need to do is lower the humidity and raise the temperature because hot air absorbs more moisture.
1. Crank the heater up to max – Hot air can hold more moisture
2. Turn the AC on – Pulls moisture out of the air (Like wringing out a wet towel)
3. Turn off inside air recirculation – Heated outside air can absorb more vapor
4. Crack the windows for a bit – Swap humid inside air with dry outside air