What to do if the car glass fogs up in winter, and what kind of wind to drive

In winter, the window glass is fogged with hot air.

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.

Precautions for fogging up the window glass in winter:

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.

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 external circulation, which can exhaust the water vapor from the car.

When driving in winter, due to the large temperature difference between the inside and outside of the car, it is common to encounter fogging of the car windows. This phenomenon is mainly due to the fact that the temperature of the window glass is almost close to the outside temperature, and the warm air in the car will liquefy when it encounters the low temperature of the window, causing a layer of fog on the window.

The biggest impact of fog is undoubtedly the interference of the driver's vision, if it is driving at low speed in the city, it is fine, if it is running at high speed at this time, it is very dangerous, so the fogging of the car window in winter is the most common but the most important situation that cannot be ignored.

Generally, drivers tend to use a towel to dry the fog when they encounter this situation, this method is unscientific, because the behavior of distracting and cleaning the windows while driving will affect the safety of driving.

This is mainly electric heating, but some are treated with warm air.

What should I do if the car glass fogs up in winter? What's the wind? Then you must turn on the hair dryer in front of the window, don't turn on the warm air, just turn on the blowing.

1. Use anti-fogging agents.

Spray a little defogging agent on the car glass window, and then wipe it clean, while polishing the glass, form a thin layer of transparent protective film on the glass, which can effectively prevent the condensation of water vapor on the glass and form a fog layer.

2. Use air convection.

Due to the season, the temperature difference between the inside and outside of the car becomes larger, and the warm and humid air in the car meets the cold front windshield, and then the heat is released and liquefied, and it is easy to produce fog.

Therefore, you can also open a small slit in the car glass to let the air inside and outside the car convection, balance the temperature difference between the inside and outside the car, and also play a role in anti-fogging.

3. Use air conditioning and heating.

Turn on the warm air conditioner, use the warm air to blow hot air on the glass, quickly increase the temperature of the front glass, and eliminate the condition that the warm and humid air in the car is released and liquefied on the window glass, so as to achieve the purpose of preventing fogging.

In fact, no matter what kind of wind is on, warm air and cold air can be used, which can play a role in defogging, but the principle of defogging between the two is different, and the applicable scenarios are different.

Cold air defogging. The advantage of this method is that it is fast, and it can quickly keep the internal and external temperature near the car window consistent, which is equivalent to building an invisible wall between the heat generated by the human body and the exhaled heat and the window glass, so as to prevent the two from contacting the road. The disadvantage is that it's really cold, and if you want to achieve your goal, you have to keep the cold wind on, and you say that who can stand it in the winter.

Warm air defogging. The advantage of this method is that it has strong staying power, which is equivalent to increasing the temperature to increase the droplets of fog, and the principle can be imagined as "heating" the car glass. However, this method is also a bit "painful" in the early stage, which will make the fog in the car heavier and heavier, and this method cannot be used when the vehicle has just started and the water temperature has not yet risen.

Blow directly on the wind. Think about our real life, what is the fog most afraid of, the first is water, and the second is wind. Therefore, blowing the wind against the air conditioner, you can remove the fog without turning on the cold air or warm air.

In addition to "opening the wind", what other methods can be used to remove fog.

In addition to "opening the air", there are many ways to remove fog:

Simple and rude: wipe it directly with a towel, fast and easy. But the new fog will still appear, and it will leave a residual watermark.

Long-term effect: You can use a window defogger to evenly apply it to the windows and windshield, and it is generally no problem to keep it for more than ten days.

Find the guilt: lower the glass, the cold air outside the car is poured in, the temperature inside and outside the car is balanced, and the fog is naturally gone.

In conclusion. The cold air defogs quickly, and the warm air lasts longer, but the fog will rise more when the warm air is blowing. In winter, when the car has just started, it is recommended to wait a little longer, whether it is wiping or blowing, and it is safest to go after the fog clears. If you are really in a hurry and have to drive away immediately, this is recommended:

After starting the car, immediately call the cold air to blow the glass, open the window, and then drive on the road, to ensure that there can be no fog when driving, the specific size of the window depends on the situation, and when the water temperature comes up, turn on the heater, and wait for the glass to be foggy after closing the window and driving normally.

When driving in winter, the windows are easy to fog up, which brings a lot of inconvenience to driving, many drivers drive while holding a rag to wipe there, but the effect is not very obvious, and after wiping, it fogs up again after driving for a while. In this case, should we turn on the cold air or the hot air? I'm going to tell you about it today.

The main reason for the fogging of the driving glass in winter is that the car glass is in contact with the outside world, the temperature is low, and the water vapor in the car condenses on the glass to form fog. To get rid of the fog, both hot and cold air are fine.

Hot air blowing, by raising the temperature of the glass, drying the moisture in the car, the fog in the car glass can disappear, the disadvantage is that it takes a long time, and can not be effective immediately. The cold wind blows to convection the air inside and outside the car, and the disadvantage is that the cold wind will affect driving in winter, and it is easy to treat the symptoms but not the root cause.

To avoid fogging the glass, the following methods can be used:

1. You can wipe the glass first, which is a relatively fast method, because when the vehicle is just started, the water temperature does not rise, and the heater does not work, you can first use a clean towel or a special anti-fog towel for the car to wipe the glass clean, and when the heating is turned on, the temperature in the car will rise some, and the fog will not condense again. However, it should be noted that the glass must be in the parking state when cleaning, and the glass must not be wiped when driving.

2. You can also use dish soap, dilute the dish soap used at home with water at a ratio of 1:6, and then pour it on the soft cloth of the glass wipe, wipe the windshield on the front and both sides, and wait until the dish soap is dry and then wipe it with a clean cloth, so as to ensure that the window glass will not fog up again for seven or eight days.

3. When the temperature in the car rises to a certain extent, open the warm air conditioner of the front windshield and blow the front windshield directly, and the external circulation should also be opened to reduce the temperature difference between the inside and outside of the front glass to achieve the effect of defogging. However, if the glass fogs up during driving, there is no need to turn on the hot air to remove the fog, because the temperature difference between the inside and outside of the car will be increased, which will make the fog on the glass more serious. The hot air should be turned on to dry the glass before driving, or the hot air conditioner should be turned on in advance to dry the moisture in the car, and the fog in the car glass can disappear.

4. You can spray a professional defogger, which can not only remove the fog in the car, but also prevent the windows from fogging. The practice is to spray a small amount of defogging agent on the car glass, and then wipe it clean, which can not only remove the dirt and marks on the glass, but also form a transparent protective film on the glass, which effectively prevents water vapor from condensing on the glass, especially in winter, the effect will be more obvious.

5. You can open the window properly, although the weather is very cold in winter, but if the speed is not very fast, you can open a small slit in the glass windows on both sides, so that the air inside and outside the car can be convection, and the fog on the glass in the car can disappear for a while, but if the speed is fast, don't open the window, the wind will pour into the car, not only very cold, but also affect driving.

In winter, due to the large temperature difference between the inside and outside of the car, many friends will encounter fogging of the car window, especially in rainy and snowy days. Don't ignore fogging of the windows, which can affect the driver's vision and pose a safety hazard to the vehicle. So, what to do about fogging up the car windows?

Here are a few tips for defogging.

If you find that the windows of your car are fogging, don't panic, you can open the windows on both sides of the vehicle, and the width of a fist will do. This causes convection of the air in the car, blowing the moisture away, and the fog quickly dissipates.

Turn on the fan and refrigeration switch in the car, and when the cold air blows onto the glass, the fog will quickly dissipate. This is because the cold air blows onto the glass, preventing the water vapor from condensing on the glass, and the defogging effect is obtained. However, this method can make the occupants feel cold in the winter, so you might want to give it a try.

You can also receive the effect of defogging with hot air! However, one thing to remind everyone is that if the glass has fogged up while driving, turning on the hot air switch will make the fog on the glass heavier and heavier. Therefore, it is recommended that riders do not try to blow the glass with hot air while driving, and it is best to blow the glass with hot air until it is dry before driving.

After the hot air dries the moisture in the car, the fog on the glass will disappear and it will only take a few minutes. One thing to note is that the rear and side glass temperatures rise slowly, so it takes a long time to remove all the fog.

Preventive methods such as spraying defoggers are used. Spray a little defogging agent on the car glass, and then wipe it clean, you can remove the dirt and stains on the glass. While polishing the glass, a thin layer of transparent protective film is formed on the glass.

It can effectively prevent the formation of fog caused by water vapor condensation on the glass, especially suitable for cold winters.

There are the following solutions to fogging outside the car window:

1. Open the window and remove fog: adjust the button of the car glass to leave a gap in the window to reduce the temperature difference and avoid the fog of the car. In this way, the air inside and outside the car forms a convection, the temperature difference decreases, and the fog will slowly disappear;

The limitations of opening windows to remove fog are very obvious, if the fog in the car is large, or it is rain and snow weather, or driving on the highway, it is not suitable to open the window to remove fog, and opening the window will also reduce the temperature in the car;

2. You can use a clean rag to wipe the fog on the car window;

3. Air conditioning defogging: you can use the vehicle air conditioning system to defog, at present, basically all cars on the market have air conditioning outlets under the front windshield, just select the air conditioning to the corresponding gear;

In winter, the temperature difference between the inside and outside of the car is too large, and it is cold outside and warm inside, causing the windows to fog up. At this time, you can turn on the AC refrigeration switch in the car to let the cold air blow on the front windshield, and the fog will disappear soon;

4. Detergent blending method is sprayed on the outside of the car window to defog: use soap and dish soap mixed with water to spray on the glass, and form a layer of oil film on the surface of the glass to achieve the effect of no fogging. However, this oil film will cause the front windshield to form a dazzling effect at night, affecting driving safety;

5. Defogging with wipers: The fog outside the window is generally caused by rainwater condensation, and it is okay to scrape with a wiper, but if it is a frost in winter, it should be wiped with water, not with a wiper to avoid damaging the wiper;

6. Use defogging agent: spray the defogging agent on the inner surface of the automobile glass and wipe it clean, which can also form a protective film while removing the glass dirt.

Car glass is easy to fog, teach everyone a good way.

Car fogging is a physical phenomenon that is mainly caused by temperature differences. It is divided into internal fogging and external fogging. Internal fogging generally occurs in winter and rainy season, and you only need to turn on the AC switch and adjust the temperature to the right level, just like the dehumidification mode of a household air conditioner.

External fogging generally occurs in summer when the air conditioner is blown on the front windshield, so you just need to change the wind direction and not blow the front windshield.

"Method 1: If the water temperature has not risen when the vehicle has just started, wipe off the fog on the glass with a soft cloth towel or a special anti-fog towel for the car, and try to stop and wipe again; Method 2: When the speed is not fast, you can open a small slit in the car glass to let the air inside and outside the car convection; Method 3:

Use a special spray for automobiles, first wipe the inside of the glass of the front windshield, spray an appropriate amount of anti-fogging agent, wait for 10-20 seconds, and wipe it clean with a cleaning towel; Method 4: Turn on the heater and air conditioner in the front windshield;

In winter, when the car glass is fogged, you can use: open the window; in-car air conditioning; Elimist these three ways.

1. If the outside air is not particularly cold, you can open the window for ventilation and discharge the cold air, the fog on the windshield is the water vapor that is breathed out, and the ventilation of the window will be strengthened by the flow, and the moist water vapor will be discharged, which will naturally reduce the fog, and you can also open a small gap in the window and continue to use negative pressure to suck out the fog. If there is a sunroof, you can use the tilt function of the sunroof to quickly exhaust the air.

2. If it is inconvenient to open the window, you can use the air conditioner, modern cars generally have a blowing front windshield mode, turn on the AC, turn on the glass blowing mode, so that you can quickly defog, why open the AC? When the AC (compressor) is turned on, the temperature of the condenser of the compressor decreases, and the moist water vapor inhaled during the air conditioning cycle is condensed on the surface of the condenser and discharged from the vehicle.

3. In fact, some defoggers also have some effects, and the use method is very simple, that is, spray on the surface of the front windshield in advance, but I personally don't like this method. In fact, the first two methods are used well, and there is no need to buy this thing at all.

Cause of fogging:

In winter, the temperature difference between the inside and outside of the car is large, and the temperature outside the car will be lower than the temperature inside the car, and correspondingly, the temperature of the front windshield will be lower than the temperature inside the car, which makes the water vapor in the car condense into small water droplets on the glass, which adheres to the surface of the glass, resulting in a white and vast scene of the window. Especially in places with high humidity, car windows are very prone to fogging. As a result, the line of sight is very unclear, which causes great interference with driving.