Let me explain the winter car aerosol to you.

Near the Spring Festival, it began to rain and snow everywhere. Do you feel very cold this winter? Unexpectedly, it rained again in Tianjin these days. The cold and wet weather not only makes people feel cold, but also gives many drivers a headache. Because in rainy winter, the glass inside the car is easy to fog, which affects the line of sight and threatens the driving safety. In this way, it is particularly important to quickly remove the fog on the glass. Here, I would like to introduce the causes and solutions of car fogging, so as to protect your safe travel.

When it rains in winter, the temperature inside the car will be higher than that outside, because there are passengers inside. The increase of temperature will make the humidity of the air higher than that outside the car. However, when the humid air in the car air comes into contact with the windshield with low temperature, the water vapor in the car air will gradually separate out moisture due to the cold, and gradually gather to form water mist and attach to the glass. Or sometimes there is a certain temperature difference on both sides of the window. When the surface with low temperature is saturated with water and the vapor pressure is lower than the surrounding environment, water vapor will gather on the glass surface and dialyze out in the form of tiny water droplets to form fog vapor. Therefore, to remove the fog on the glass, either reduce the temperature difference or reduce the air humidity inside the car.

So how to solve this problem at this time?

First of all, if you find that the fog inside the car is not big, you can open a gap in the windows on both sides, so that the air inside and outside the car will form convection, the temperature difference will decrease, and the fog will gradually fade. However, the disadvantages of window convection are also very obvious. It is not recommended in case of rain, snow, expressway and fog. In addition, opening the window will reduce the temperature inside the car and make passengers feel cold.

For most car owners, using air conditioning system to remove fog is the most common. But do you know that defogging with air conditioner can be divided into cold air defogging and hot air defogging?

I believe many friends have used air conditioning system to remove fog. Actually, there are some skills here. The usual practice is to use cold air to remove fog, turn on the fan and refrigeration switch in the car, and let the cold air blow on the glass and the fog will soon disperse, with quick and direct effect. One of the biggest drawbacks of this method is that people in the car may feel very cold, and the smell of blowing air conditioning in the car is really bad.

The easiest way is to open the window and let the cold air outside enter the car to achieve the effect of defogging. However, it should be noted that this method may not be applicable when driving at high speed.

So is there a better way? That's hot air demisting. Blow the glass with hot air before driving until it is dry, and then it is not easy to fog. Turning on hot air won't increase additional energy consumption, and you can drive comfortably, killing two birds with one stone.

Of course, the simplest thing is to use glass water, dip absorbent cotton or clean and soft cloth on the inside of the front and rear windshield, or pour it into a watering can and spray it on the glass before driving to prevent the car from fogging.