[China Glass Net] The reason for the fogging of the window is caused by the large temperature difference between “internal heat and external coolingâ€. Autumn or rainy days, the temperature difference between inside and outside may be more than a dozen degrees, and in the winter, the temperature difference between the cold outdoor and the car may reach twenty degrees, which will cause fog on the glass, affecting driving safety.
Defogging method
There are two methods for defogging, one is prevention in advance, and the other is defogging after fogging.
1. Wipe off the mist with a towel
As mentioned earlier, if you want to wipe off the fog with a towel, you can only do it while the vehicle is stopped. You can't wipe the glass while driving, because it will distract attention. Of course, the co-pilot can't wipe the glass while the vehicle is running, which will affect the driver's line of sight and bring safety hazards to the car. In addition, it takes a long time to wipe off the mist with a towel. If you can't stop on the highway, it will be a terrible thing to see the front because of fogging. Therefore, it is not recommended to use a towel to wipe the fog.
2. Window convection defogging
If the fog is not too big, we can open a gap between the windows on both sides to make the air in the car convect. The temperature inside the car slowly approaches the temperature outside the car, and the fog will dissipate. The advantage is that it can achieve the effect of air-conditioning without increasing fuel consumption, but this method is not suitable for all situations, such as cold winter or rain.
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