Windshield Mist Removal Tips

Why does the windshield fog up?

When there is a lot of rain, the air is humid. When the outside temperature is low, a temperature difference is formed inside and outside the cab. The humid air in the cab will condense when it hits the windshield, forming a layer of fog or frost. High humidity and temperature difference are the two conditions for the formation of fog, so fog is more likely to be generated in rainy weather in spring and autumn.

The dangers of fogging windshields

 The fog on the windshield will affect the driver's sight. When the driver does not understand the road conditions ahead, the danger is self-evident. It is no exaggeration to call it a road killer.

Some drivers will wipe off the water vapor on the windshield while driving when they find it foggy. In fact, this is also very dangerous. If there is any emergency on the road, the driver who does not concentrate on driving will be too late to deal with the emergency and cause an accident.

How to get rid of mist

 1. Turn on the warm air and blow it

The most direct way is to turn on the warm air and blow it against the windshield. The warm air can speed up the volatilization of fog. At the same time, the temperature of the glass increases, and the humid air in the cab is not prone to condensation.

This method has a direct effect on less fog, but when the temperature difference between the inside and outside of the cab is large, or when the temperature of the engine warm air does not rise in cold weather, the fog removal effect is not very good.

 2. Dishwashing liquid solution

Dissolve dishwashing detergent in water, and then apply it on the inside of the windshield with a clean cloth, there will be a lot of foam, just wait for a while, the foam will disappear on its own, and the detergent film left on the glass will effectively Keep the glass free of frost for 2 hours. After the temperature in the car rises, wipe off the liquid film on the glass with a clean damp cloth.   

If it is too troublesome, you can mix the detergent with water at a ratio of 1:10, put it into the sprayer, and spray a thin layer on the window. After drying, it can effectively prevent fogging for a period of time.

This method is recommended by many people, and many people have tried it themselves and proved that the effect is really good.

3. Use a glass defogger

If you want more convenience, you can buy a glass defogger.

4. Turn on the air conditioner and heater together

For cars with air conditioning, there is another very effective method. Turn on the heater and air conditioner at the same time, so that the fog removal effect is faster.

 The principle is that the air conditioner filter has a drying function, filtering out the moisture in the air in the cab, and it is not easy to generate fog on the windshield.

5. Open the windows to eliminate the temperature difference

Open the windows to keep the temperature inside and outside the cab the same, and the fog loses the necessary condition for forming - the temperature difference.

Although this method is simple, it may cause the driver to catch a cold in the cold season.