4 ways to deal with foggy car windows in wet and rainy weather

Understanding how to adjust the air conditioning system, air intake mode and some other small tips... will help drivers overcome the problem of foggy car windows when driving in rainy and humid weather.

Windshield fogs up easily when driving in the rain

The phenomenon of fogging up the windshield and side windows of the car comes from the temperature difference between outside and inside the cabin.

In Vietnam, drivers often encounter this phenomenon when driving in the rain or passing through cold weather areas with high humidity... The outside temperature is lower than the temperature in the interior compartment, along with the operation of the air conditioning system, the heat emitted from the people sitting in the car causes condensation on the glass surface. This obstructs the driver's vision, making it difficult to control the vehicle. Some experiences compiled from "veteran drivers" as well as experts in the automotive field will help drivers overcome the phenomenon of foggy glass.

Turn on the glass drying function

Most current car models are equipped with a windshield defroster. Therefore, when detecting signs of fogging due to condensation, users should activate the windshield defroster function via the button usually integrated on the center console.

When activated, the indicator light on the control button will light up to let the driver know that the windshield defroster is working. Note that when turning on this function, you should close all the windows in the car, because if just one of the windows is open, the windshield defroster system will not work effectively and it will be difficult to remove the water vapor on the windshield. This is considered the fastest and simplest way to fix the phenomenon of foggy car windows when driving in the rain.

However, with some older car models that are not equipped with a windshield defroster, users can also remove condensation on the windshield by adjusting the air conditioning system.

Adjust the air conditioner temperature appropriately

According to some experienced drivers, when the car windows are foggy, users should turn on the air conditioning system, gradually adjusting the temperature to reduce the difference with the outside environment. In addition, you should choose the internal air intake mode to prevent moisture from entering the car, adjust the air vents so that the wind direction does not blow directly onto the windshield or side windows. After a few minutes, the temperature will balance the amount of moisture, the glass will no longer fog up.

However, drivers should only use this method when the outside temperature is not too cold. Because if the user suddenly reduces the air conditioning temperature in the car to a level that is equal to the ambient temperature, it will somewhat affect the health of the people sitting in the car.

Turn on the fan, switch to outside air intake mode

On dry days, especially in the Northern provinces... When the air conditioning system is not working effectively, the cold is not deep. To avoid fogging of the glass, the driver should turn on the fan, switch to outside air intake mode and adjust the air vents on the windshield. This will help reduce the temperature difference between inside and outside the car, preventing the windshield from fogging.

In addition, to save fuel, some drivers also have the solution of lowering the window to balance the temperature inside the car with the outside. However, this method is only suitable at times when it is not raining too heavily and the weather is not too cold, to avoid affecting the health and interior of the car.

Use shaving foam, anti-fog additives

In addition to using the air conditioning system, the glass defroster function equipped on the car... some drivers also apply the method of using a dry towel, shaving foam or anti-fog additives to wipe each small area on the car's glass surface, the side windows of the car. This method is quite elaborate but also effective in preventing condensation on the car's glass.

Note,In addition to the above methods, when detecting that the car glass is foggy, the driver should not use a towel or paper to wipe the inside of the glass. This is both inconvenient and creates streaks on the glass, reducing visibility.

According to TNO