What is the defogging sign for front and rear windows?

The fan-shaped sign indicates defogging \ defrosting of the front window, and the rectangular frame sign indicates defogging \ defrosting of the rear window.

1. The defogging mark on the rear window glass is as follows:

2. The defogging sign of the front glass is as follows:

You can choose the method of window convection. When the temperature inside the car is close to the temperature outside the car, the fog will disperse. This method is more convenient and faster, and it will not increase fuel consumption and save energy. However, this method is only suitable for use when the outside temperature is not very low. If the outside temperature is extremely low, or it happens to rain, snow or fog, it is not suitable for use.

You can use the car's air conditioning system to remove fog. Some cars have their own defogging function. You can turn on the defogging device of the air conditioner in the car to defog. But whether to choose cold air defogging or warm air defogging has its own advantages and disadvantages. Under normal circumstances, the fog generated in the process of starting a car can be removed by cold air in case of emergency, but it is still very painful to remove fog by cold air in already cold weather.

The effect of warm air blowing glass is better than that of cold air. The safest way is to turn on hot air and wipe the windshield with a rag before driving. Hot air can dry the water in the car and heat the car, but the process of defogging will be slow.