What should I do if the car glass fogs in winter? Turn on this switch, the fog will disperse quickly and people will not be frozen.

When we drive in winter, we have a problem. The window glass is prone to fog, especially when we use the car in the morning and at night. Then some friends may know that when there is fog, we can open the window or blow the glass with cold air. These two methods can really remove fog quickly, but isn't it painful to open a window or use air conditioning in such cold weather in winter? Today, Bian Xiao will teach you that the glass fogs easily when driving in winter. Turn on this switch, and the defogging speed will not freeze.

First of all, when we talk about defogging, we must first understand how this fog is formed. This is because the temperature difference between the inside and outside of the car is too large, we will exhale hot air in the car and we will get hot ourselves. If warm air is added, the hot air in the car will form water droplets when it meets the cold windshield. When these water droplets become very large, they will form fog. Therefore, the most fundamental thing in defogging is to blow dry these water droplets. Just now, we said that it is better to blow the window with cold air, which can really dry the water, but it still keeps the temperature inside our car glass very low. At that time, after defogging, you turned on the heating, and soon it was foggy again.

Of course, some cars have a defogging button on the panel of the automatic air conditioner. In fact, this function itself is to blow glass with cold air by default, but after you turn on the defogging button like this automatic air conditioner, it will not affect other air outlets. Other air outlets still blow warm air, so we won't feel too cold, but some cars with manual air conditioning don't have this function, so we can blow warm air at this time. Then, the air volume is slightly lowered by two gears, and the wind direction is adjusted to the position where the glass is blown, which can also remove fog quickly. Moreover, since we get out of the warm air car, the temperature inside the glass will also rise, which will reduce the temperature difference between the glass and the car, and there will be no more fog.

There is another question, that is, when demisting, should we use internal circulation or external circulation? In fact, you don't have to worry about this, because most of the air conditioners in our car will turn on the external circulation by default when you turn the air conditioner to the position of blowing glass.

Bian Xiao has been using the defogging method I told you today, so you might as well try it.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.