What to do if the front windshield of the car is foggy a lot at night?

1. Open windows for convection.

If you find that the fog in the car is not large, you can open a gap in the windows on both sides, so that the air inside and outside the car will form a convection, the temperature difference will also decrease, and the fog will slowly disappear. The principle of this method is the same as turning on the air conditioner for cold air, but it does not increase fuel consumption. The disadvantages of opening windows for convection are very obvious, it is not available in rainy and snowy weather, highways, fog, and open windows will reduce the temperature in the car.

2. Air conditioning system.

For most car owners, the use of air conditioning system to defog is the most common. Nowadays, almost all cars on the market have air conditioning outlets under the front windshield, and you only need to select the air conditioner to the corresponding gear to use the air conditioning to defog. But with cold or warm air?

Cold and warm air have their own advantages and disadvantages, if you are in a hurry to hit the road, you can use cold air for emergency. In most cases, it is recommended that you use a warm air.

Turn on the fan and refrigeration switch in the car, and the cold wind blows on the front windshield, and the fog will disappear quickly, and the effect is very immediate. But one of the biggest drawbacks of this method is that the people in the car feel cold. In the already cold winter, the cold wind blowing in the air conditioner is not pleasant.

And when the cold air is turned off, there is a chance that the fog will reappear. Therefore, we do not recommend using cold air defogging.

It is better to blow the glass with hot air than with cold air. However, due to the fact that the water temperature is very low when it is first started, it takes a period of time for the air conditioner to blow out hot air, so it takes longer than blowing with cold air. In the beginning, the fog in the car will become larger, because the temperature difference between the inside and outside is larger, and the fog will disappear when the hot air dries the moisture in the car.

3. Defogging agent.

It is sold in many places such as auto parts city and supermarket. The defogging agent is sprayed on the inner surface of the car glass and wiped clean, while removing the glass dirt, it can also form a protective film to prevent the condensation of water vapor on the glass and form a fog layer, and the spray can prevent fogging for about ten days. **From more than ten yuan to hundreds of yuan, the current defogger market is mixed, and it is easy to buy products with poor results.

In fact, you don't have to spend money at all, you can make your own.

The fastest way is to turn on the air conditioner of the vehicle, adjust to the position of blowing the glass, and the fog on the glass can be blown away in 2-3 seconds.

One is to turn on the cold or hot air to blow, and the other is to open the window a little bit to let the car have no air convection.

There is a lot of fog on the front windshield of the car online, what to do? In this case, do you wipe it first, and then turn on that fog lamp? It is safest if it is slowed down.

The chess array grabs the wind at night, and the glass is a lot of fog, which can be opened and opened to open the air conditioner.

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, it can effectively prevent the fog layer formed by the condensation of water vapor on the glass or 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 conditions of heat release and liquefaction of the warm and humid air in the car on the window glass, so as to achieve the purpose of preventing fogging.

This is caused by the temperature difference between the inside and outside of the car, which can be eliminated by proper ventilation.

What should I do if there is a lot of fog in the windshield such as car insurance insurance? So in fact, in general, you can wipe it with a rag.

What to do if the front windshield of the car is foggy a lot at night? Turn on the air conditioner and blow it.

The following methods are available to solve the problem:

1. Open the window for convection, and when the fog is not very large, you can open a slit in the windows on both sides.

2. The air outside the car drives convection, the temperature difference is reduced, and the fog disappears.

3. Open the front windshield defogging button on the center console panel and adjust the alignment of each air outlet with the front windshield.

4. After the fog disappears, you can turn off the AC button of the air conditioner, continue to adjust the air volume a little smaller, and adjust the hot air to blow on the glass.

5. Spray the defogging agent evenly on a soft cloth, and then wipe the front windshield with a soft cloth, or spray it directly on the glass.

Reason: In summer, fog will only occur on rainy days, because the outside air humidity is high at that time, but the temperature is not low, and after the moist air meets the cool glass, the water vapor will condense into small water droplets, forming fog on the outside of the glass.

The principle is the same as that of fogging the inside of the glass in winter, which is due to the high humidity in the cabin and the cold glass forms fog. So if the air conditioner is turned on in the summer, the windshield will be cooler and more prone to fogging.

Therefore, if the outside of the glass is fogged, do not turn on the air conditioner and use cold air to blow the windshield, it will blow more and more seriously. This is different from defogging the inside of the glass in winter, which can be defogged with a cold wind on, except that the wind blows the glass dry.

The temperature of the cab is appropriately increased, so that the difference between the air temperature inside and outside the cab is not too large, and the windshield will not be fogged up without the condition of water vapor condensation.

For the situation that has fogged up, if it is serious, you can use the wiper to scrape it off first, and then blow a little hot air in the direction of the windshield, and the fog will dissipate immediately.

Cause: The outside of the windshield is fogged up because the air temperature in the car's cab is much cooler than outside the cab.

Other methods: Turn on the air conditioner. When the water temperature of the vehicle rises to a certain level, you can turn on the warm air conditioner of the front windshield, blow directly on the front windshield, and turn on the external circulation.

In this way, the temperature difference between the inside and outside of the front glass is reduced to achieve the effect of defogging. However, if the water temperature does not come up when the car is just started, the effect will be very poor.

Use dish soap to prevent fogging. This is a way to prevent car windows from fogging, that is, dilute the detergent used at home with 1:6 with water, and then wipe the car glass with a soft cloth dipped in detergent, and then wipe it with a dry cloth after the detergent is dry, which can ensure that the windows will no longer fog up for about 10 days.

You can also mix shampoo, shower gel, etc. and water at home in a ratio of about 1:10, pour it into a watering can, and spray the glass before driving to prevent the car glass from fogging.

Defogging and dehumidification methods:

1.Turn on the air conditioner (the AC indicator is on).

2.The ventilation mode is selected as: or .

3.The air circulation mode is selected as External circulation.

4.The blower speed is selected as the highest setting.

5.The temperature can be adjusted to a suitable position as needed (generally: cold air in spring and summer, warm air in autumn and winter).

6.The vents in the trunk also prevent fogging, so be careful to keep them clear.

The fogging is due to the poor sealing of the tuyere flap, and the air conditioning wind blows all the way to this position.

Wipe clean.

Defogger Defogger on the market ranges from tens of yuan to hundreds of yuan, and the ingredients are not much different, and the only difference may be durability. To use it, you only need to spray it evenly on the glass surface and wipe it clean with a dry towel.

If the wiper of the car is not clean, foggy or has abnormal noise, it will cause the driving vision to be affected, generally because of the rubber strip of the wiper There is a problem, which may be caused by long-term exposure to hardening or corrosion in rain and snow, so here there will be a wiper friction between the front windshield is not very uniform or there is a sealing system to produce a scraping area. In this case, it is recommended that you go directly to Jiajia ** or a certain treasure, a certain east to buy a pair of wipers that match the model of the car, come back or find a car wash brother to help install it, the effect is very obvious.

Fogging of the windshield before driving: 1. In the case of small fog, you can properly open the windows on both sides to let the air convection, so as to eliminate the temperature difference on both sides of the windshield, and the fog is naturally difficult to form. Or turn on the air conditioner to cool the air, which can eliminate the fog in a very short time.

The advantage of both methods is that they can achieve quick results, but the disadvantage is that they should not be carried out for a long time when the weather is cold, or when it is snowing or raining. Otherwise, the fog will be removed, and the person will be blown cold; 2. Blowing hot air; Blowing cold air is a situation that has a quick effect but does not cure the root cause, while blowing hot air can fundamentally solve the problem of glass fogging. The fog doesn't come back after the hot air turns off, and it doesn't make the people in the car even worse in the cold winter.

However, the biggest problem with blowing hot air is that it is slow to produce results, and it takes a long time to see the effect. Moreover, it is more fuel-consuming to turn on the heater while driving, and the cost is a bit high; 3. Defogging agent. The principle of the defogger is simple, spraying a layer on the windshield can form an effective protective film, which prevents the condensation of water mist. However, this protective film has a short expiration date and requires repeated spraying over a long period of time to maintain the effect.

In the case of small fog, you can properly open the windows on both sides to allow air convection, so as to eliminate the temperature difference on both sides of the windshield, and the fog is naturally difficult to form. Or turn on the air conditioner to cool the air, which can eliminate the fog in a very short time. The principle of the defogger is simple, spraying a layer on the windshield can form an effective protective film, which prevents the condensation of water mist.

However, this protective film has a short expiration date and needs to be sprayed repeatedly over a long period of time to maintain the effect.

Some high-end brands have the function of preventing fogging, and the air conditioning system on these models will constantly detect the temperature and humidity in the car, and analyze the critical temperature of water vapor condensation in the car at this moment through these two indicators.

Through comparison, it can be judged whether the air in the car will fog up on the front windshield. If the system detects that fogging is imminent, the air conditioning system initiates a series of defogging operations, such as adjusting the temperature, wind direction, air volume, internal and external circulation, etc. Blowing cold air is a situation that has a quick effect but does not cure the root cause, while blowing hot air can fundamentally solve the problem of glass fogging.

The fog doesn't come back after the hot return is turned off, and it doesn't make the occupants of the car even worse in the cold winter. However, the biggest problem with blowing hot air is that the effect is slow, and it takes a long time to see the effect. Moreover, it is more fuel-consuming to turn on the heater while driving, and the cost is a bit high;

Photo by Chen Jie2) M5 Xpeng P7 AION V Trumpchi GS8 Xpeng P5 Ideal One @2019

When the fog is not large, you can properly open the windows on both sides to allow air convection and eliminate the temperature difference on both sides of the windshield, and the fog is naturally difficult to form. Or turn on the air conditioning cold air, which can eliminate the fog in a short time. The principle of a mist eliminator is simple.

Spray a layer on the windshield to form an effective protective film that prevents water mist from condensing. However, this protective film has a short expiration date and requires repeated spraying over a long period of time to maintain the effect.

Some high-end brand vehicles have a feature that prevents the vehicle from fogging. The air conditioning system in these vehicles constantly monitors the temperature and humidity in the vehicle, and analyzes the critical temperature of water vapor condensation in the vehicle at this moment.

By comparison, you can determine whether the air inside the car will fog up on the front windshield. If the system detects that the fog is coming, then the air conditioning system will start a series of defogging operations, such as adjusting the temperature, wind direction, air volume, internal and external circulation, etc. Blowing cold air is a quick effect, but it is not a cure, and blowing hot air can fundamentally solve the problem of glass fogging.

When the hot wind turns off the fog, it won't come back, and the people in the car won't get frost in the cold winter. However, the biggest problem with hot air blowing is that it takes a long time to see the results. In addition, warm air driving consumes a lot of fuel, and the cost is a bit high.

The solutions to fogging outside the windshield are as follows:1Air conditioner defogging.

This is the easiest and most effective way to do it. Simply turn on the front window defogging mode, adjust the wind speed to the maximum, turn on the A U002FC switch, and then adjust the temperature to the lowest to defog. In addition, the rear windshield and exterior mirrors of some models are equipped with electric heating, which can be used to eliminate fogging in about a minute after the switch is turned on.

2.Air convection defogging. After opening the window, it can increase air convection and reduce the temperature difference between the inside and outside of the car, which is relatively economical to reduce the conditions for fog formation, but it is relatively suitable for fewer situations.

3.Defogging agent defogging. The best way to do this is to prevent it in advance with a defogger.

Its principle is to use the method of surfactant to retain a certain protective film on the surface of the glass, change the surface tension of water molecules, and make the fog beads condense into large water droplets, so as not to block the line of sight. 4.Dish soap homemade defogger.

If there is no defogger, then you can mix the dish soap with water, according to the ratio of 1:6, put the dish soap and water in a bottle, and spray it before traveling, the effect is comparable to that of the defogger, but the durability is slightly worse.