What should I do if the car window is fogged up and the wind is cold in winter?

If the windows fog up while driving, don't panic, you can open the windows on both sides of the vehicle, not too wide enough for a fist, so that the air in the car can be convection, blowing the moisture away, and the fog will dissipate quickly.

In winter and rainy days, when the windshield is foggy, I believe many friends have used the air conditioning system.

To remove the fog, in fact, there are some tricks here. I believe that many friends have questions and controversies about the use of cold air or warm air defogging effect, in fact, this problem is two-sided, and it is discussed due to different situations.

The usual practice is to turn on the fan and refrigeration switch in the car, so that the cold air blows on the glass and the fog will soon disperse, and the effect is quick and direct. This is because the cold air blows onto the glass, preventing the moisture from condensing on the glass and having a defogging effect. One of the biggest drawbacks of this method is that the people in the car may feel very cold, just imagine that in rainy days and winters that are prone to fog, the taste of blowing air conditioning in the car is really uncomfortable!

Blowing for a few minutes may turn off the air conditioner, and after a while the fog starts to hang on the glass again, and the air conditioner ...... turned on againThis repeated operation is inconvenient and the temperature in the car will be very unsuitable, and the operation of the head down has caused certain hidden dangers to safety. Of course, if you are physically strong or have just finished an intense workout, this method can also be useful.

with hot air. It can remove fog and turn on the hot air, which will not add additional energy consumption, and can also drive comfortably, killing two birds with one stone.

But there is one thing to remind everyone, when the glass has fogged up while driving, the fog on the glass will become more and more serious, and it will be more obvious when the moisture in the air is heavy in rainy days, and the front windshield will suddenly turn into ground glass.

It's dangerous! It is advisable not to try to blow the windshield with hot air while driving. It is best to blow the glass with hot air until it is dry before driving.

In fact, the effect of blowing glass with hot air is better than blowing with cold air, but the process is much slower than that of air conditioning. When it is first opened, it will indeed make the fog on the inside of the glass bigger, because the temperature difference between the inside and outside is greater, and after the hot air dries the moisture in the car, the glass will become transparent, and the process will be good for a few minutes. The operation process is to park the car on the side of the road, turn on the hot air, adjust the temperature to 25 degrees or higher, and wait for the fog on the inside of the glass to dry and then reduce the temperature to be OK, so that it will not fog up again during driving, because the car is dry.

In addition to the front windshield, the side windows can also fog up, and the fog on the front side windows can affect the driver's view of the rearview mirror. Now the car has a separate air outlet for blowing the front side window, but it is generally very small, if you feel that the effect is not obvious, we can close the two ** air outlets, so that you can let the air outlet on both sides get a larger air outlet (the air conditioning of some high-end cars is independently controlled, may not be applicable), and the rear windshield can be heated by the rear windshield to remove the fog, this method can also quickly remove the fog of the rear windshield.

In winter, due to the large temperature difference between the inside and outside of the car, it is easy to form fog in the car, which affects the line of sight. Under normal circumstances, turn on the cold air defogging or turning on the warm air defogging, the effect is the same, the owner only needs to adjust the adjustment knob of the air outlet to the front windshield outlet position or press the defogging button.

However, when the temperature is low, the way of cold air defogging will make the car owner very cold. The warm air can both remove fog and heat, which is more acceptable. However, in the morning or night of winter, the humidity in the air is relatively high, and the effect of using warm air to remove fog will be relatively poor.

The best way to solve this problem is to use air conditioning for heating. Because in addition to regulating the temperature, one of the most important functions of the air conditioner is dehumidification.

In winter, due to the large temperature difference and humidity between the inside and outside of the car, many friends will encounter fogging of the car windows, especially in rainy and snowy days. Don't underestimate that fogging up windows can affect the driver's vision and pose a safety hazard to driving. So what to do if the windows are foggy?

Here's a wide chain of tips for removing the light mist.

Method 1: You can make a small slit in the windows on both sides of the vehicle. In this way, the empty air in the car can be convection, blowing away the moisture, and the fog will soon dissipate.

Method 2: Turn on the fan and refrigeration switch in the car, blow against the glass, and the fog will quickly disperse, and the effect is fast and direct. This is because the cold air blows on the glass, preventing water vapor from condensing on the glass, thus achieving the defogging effect.

However, this method can make the people in the car feel cold in the winter, so you might as well try it in an emergency.

Method 3: In fact, hot air can also achieve the effect of defogging! However, one thing to be reminded is that if the glass has fogged up while driving, turning on the hot air will make the fog on the glass worse and worse.

Therefore, riders are advised not to try to blow the glass with hot air while driving. It is best to blow the glass with hot air until it is dry before driving. When the hot air dries the moisture in the car, the fog on the glass disappears.

There is a special point that the temperature of the rear and side glasses rises more slowly, so it takes a long time to remove all the fog.

Millions of car purchase subsidies.

In winter, the windows are fogged up, and the cold air or warm air can be opened.

Fog in a car is caused by the condensation of water vapor in the car when it meets relatively cold glass. The common method is to turn on the air conditioner and blow it directly on the front windshield, and the cold air blows on the glass and the fog will soon disperse, and the effect is very fast and direct. Turning on the hot air can dry the fog, and if the interior of the car is relatively dry, the windows will no longer produce fog for a long time.

At the beginning, the windows will become more and more foggy, and the speed of hot air defogging is not as fast as that of cold air. After the temperature of the glass rises, there will be no fog when the hot air is blown all the time.

Ways to solve the fogging of driving

Special defogging agent, there are many defogging products on the market, it is relatively simple to use, spray directly on the windshield, and wipe it clean with a dry towel. This creates a thin layer of transparent protective film on the glass. Prevents water vapor from condensing into fog on cold glass.

The defogging effect can be maintained for about a week or two.

Spraying a defogger onto the window glass before it gets cold can be a preventative thing. It can effectively prevent fog from gathering on the windows, and can also clean up the dirt on the glass surface.

Open the windows to remove the fog, open the windows and convection to reduce the temperature inside the car to the same temperature as the outside of the car, and the fog will disappear. Now the vehicles are equipped with a one-key defogging function, which is convenient and fast when the fog is opened.

Blowing cold wind or warm wind is fine.

1. Cold air defogging. It is to turn on the air conditioner or the front and rear windows of the car to defog the function. The physical principle of this practice is to speed up the evaporation rate of the liquid by speeding up the flow of air on its surface. In addition, by opening the windows, you can achieve a two-pronged effect.

2. Warm air defogging. At the beginning, the fog in the windows will become more and more at the beginning, but due to the drying of the fog due to the effect of warm air, and the relatively dry interior of the car, the windows will no longer fog for a long time, and the interior of the car will be warmer.

Both cold and warm air can have a defogging effect.

1.When blowing cold air, the cold air blowing on the car window can prevent the water vapor on the car window from condensing on the car window, which can play a good role in defogging. This method is generally used to defog the vehicle while it is moving.

However, when the weather is cold, the blowing of cold air can reduce the comfort of passengers in the car.

2.When the warm air is blowing, the water vapor in the car is dried by the hot air, and the water vapor will no longer condense in the car and will not form fog on the windows. However, if the vehicle is in motion, turning on the heater will cause fogging on the glass for a period of time.

Therefore, you must be cautious when using warm air during driving.

You can use the air conditioner to defog, in fact, in winter, the window can be defogged, and the cold air and warm air can be turned on.

When winter comes, the temperature of the car glass is relatively low, and the temperature rises after the person in the car exhales the ha, and the hot air and the cold glass collide after the water mist will be formed. At this time, you can use the air conditioner to defog, in fact, in winter, it is possible to defog the car window, turn on the cold air and warm air.

When using a heater air conditioner to defog, it is to blow the windshield with hot air, so that there will not be too much temperature difference, and there will be no fog naturally. In fact, the defogging of the rear windshield of the car also uses this principle, but the heating wire is used to heat the glass.

Correct operation

The heater is to use the heating effect to dry the fog inside the window, and after turning on the heater, you can turn on the maximum wind speed, so that the interior of the entire car becomes hot. When it is first opened, the fog will be aggravated, also because the temperature difference between indoor and outdoor is too large, but when the temperature continues to rise, the moisture on the glass in the car will evaporate, and the fog will naturally disappear.

When using cold air conditioning to defog, it is to dry the water vapor on the glass, and then there will be an air curtain on the glass, and the warm air cannot touch the glass, which can naturally achieve the effect of defogging. Nowadays, many vehicles are equipped with a one-key defogging function before the cover, as long as the defogging function is pressed, the refrigeration AC function will be started, which also uses this principle to achieve the defogging effect.

01 Hot air.

In winter, the window glass is fogged with hot air. When using hot air defogging, you need to adjust the temperature to the highest and then adjust the air volume to the maximum, so that the defogging can be done quickly. When using warm air to defog, it is recommended to use an external circulation, which can exhaust the water vapor from the car.

In winter, everyone generally drives the heater, and the method of defogging is the same as that of air conditioning, except that instead of turning on the cold air, blow hot air on the glass. The effect of blowing the glass with warm air is better than that of cold air, because it is equivalent to drying the water vapor, and there is no need to worry about the phenomenon of secondary fogging.

However, the speed of warm air defogging is not as fast as that of cold air, and the fog will be larger when it is first opened, so it will take a few minutes to wait patiently. Turning on the heater will have the opposite effect at first, resulting in more fog, but after a long time, the fog can be removed, the disadvantage is that it takes a long time, so don't use this method if you are in a hurry.

Car air conditioners can cool or heat. The principle of refrigeration and heating of automobile air conditioning is very simple, the coolant in the engine will flow through the warm air tank when the air conditioner is heating, and the wind blown by the blower will also pass through the warm air tank, so that the air outlet of the automobile air conditioner can blow warm air.