It s cold, the windows are fogged up on a rainy day, whether to turn on the warm air or the cold air

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.

Extended Information: There are two other easy ways to effectively solve the problem of foggy windows in winter or on rainy days.

1.In the case of fog on the window on a cold or rainy day, it is best to open the window of the vehicle to a width the size of a fist, so that the air inside and outside the car is convection, and the temperature difference will not be formed on the car glass, which is a good solution to the situation of fog in the window.

2.Preventive methods such as spraying defoggers are used. Spray a little defogging agent on the car glass and wipe it clean to 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.

1. Rational use of air conditioning system.

2. Use special anti-fog products.

3. Open the window to convection of hot and cold air.

4. Wipe with dish soap and dry cloth.

5. Defogging of the heating wire of the rear windshield.

Cold air is because there is rain or snow outside the glass is cold, the breath exhaled by the person in the car is hot, when the hot air meets the cold glass, it will form a fog attached to the glass, if the air conditioner is turned on, the air conditioner must be turned on, and the glass must be dried with a cloth if it is not opened.

Due to the cold weather in winter, the temperature outside the car is low, and the temperature inside the car is high, the hot air in the car touches the cold glass, and the water vapor in the air in the car meets the cold glass and will condense into small water droplets, which is also called fog. The other is outside the glass. The temperature inside the car is low, the temperature outside the car is high, the hot air outside the car touches the cold glass, and the water vapor in the air outside the car meets the cold glass and will condense into small water droplets, which is also the so-called fog.

When the car is driving in the rain, the glass fogs up and the cold air should be turned on.

The most common way for a car to fog up the windshield while driving in a rainy day is to turn on the air conditioner and let it blow directly into the front windshield. In this way, the cold air blows on the glass, and soon the mist will disperse, and the effect is fast and direct. This is because the cold air blows onto the glass, forming a "cold film" on the surface of the glass, preventing carbon dioxide from condensing on the glass and having a defogging effect.

Hot air can also be defogged, but if you use hot air to defog the front windshield in a rainy day, it will aggravate the fog, just after turning on the hot air, the front windshield is likely to immediately become "frosted glass", so if you are driving a car and the window is fogged because of rain, then you can't use hot air to defog.

Don't blow any wind, just make a natural wind, turn on the fan button, turn off the air conditioner, don't turn the knob to the hot air or cold air, put it in the middle, and it's almost the same. Because of the hot air, the defogging time will be a little long, and the cold air is easy to cause condensation of water droplets outside the glass, so it will still affect the line of sight.

If the windshield fogs up in winter, whether it is a cold air or a warm air, you will know after reading it.

The cause of windshield fogging is caused by a large temperature difference between indoor and outdoor in winter. If the driving environment is more complicated during driving, you can use the cold air to carry out, which has the advantage of quickly removing the fog on the windshield and avoiding the inability to see the road due to fogging. However, because the indoor temperature needs to be high in winter, after removing the fog, the temperature should be adjusted to the warm air position several times to prevent the fog from reappearing.

If you are in the parking phase or just hot car stage, you can directly use the way of blowing warm air, although the fog removal time is relatively slow, but the warm air should be turned on all the time, if necessary, turn on the front windshield defrost function. This prevents the fog from re-generating and meets the temperature needs of the indoor driver.

1. Rational use of air conditioning system.

2. Use special anti-fog products.

3. Open the window to convection of hot and cold air.

4. Wipe with dish soap and dry cloth.

5. Defogging of the heating wire of the rear windshield.

On rainy days, the outside of the windshield is cold, and the inside must be cold to avoid fogging, with hot air, the temperature inside and outside is different, of course, fogging, can't see clearly, so play the cold air gear.

Hot air conditioning, external circulation! Wind power of your choice! Blowing the windshield.

Keep the temperature inside the car the same as outside, and it should be cold air.

It's okay, if you turn on the air conditioner, the fog will dissipate faster, just if.

In the case of fog in the car on rainy days, it is best to turn on the hot air equipment, which can make the air in the car warmer, and can also effectively remove the fog to achieve the effect of safe driving.

The best advice for driving the car is that you can learn from the polite communication with professionals, which will be better, and the following points need to be paid attention to in polite communication.

First, there is measure.

This is the first issue of proper language and politeness. In order to achieve a sense of proportion in language, it is necessary to cooperate with non-verbal elements, to know oneself and the other in terms of background knowledge, to clarify the purpose of communication, to choose a good communicative style, and at the same time, to pay attention to how to use words and actions to properly express, of course, proportionality also includes specific words and proportions.

The second is courtesy.

The etiquette of language is greetings. There are five most common forms of etiquette language, which express the five types of politeness in people's communication: greeting, thanking, apologizing, farewell, and returning. The greeting is "Hello", the farewell is "Goodbye", the thank you is "Thank you", and the apology is "I'm sorry".

The third is to be educated.

Speaking in a measured and polite manner, the content is full of knowledge, and the words are elegant, which is a manifestation of language education. Respect and understanding of others are important manifestations of a cultured person.

Respect others' private lives, clothing, furnishings, and hobbies that are in line with ethics and regulations, and tactfully and kindly point out when others do have shortcomings.

To be forgiving means to deal with others when they are not polite.

The fourth is to be knowledgeable.

In the current era, we must attach great importance to knowledge and respect talents, so it is very important to have knowledge.

When driving in the rain, the windows are foggy, and if it is summer, you can turn on the cold air, but it is not suitable for the motive. Generally, the most common way to fog up the windshield on a rainy day is to turn on the air conditioner and let it blow directly into the front windshield.

In this way, the cold air blows on the glass, and soon the fog will disperse, and the effect is very quick and direct. This is because the cold air blows onto the glass, forming a "cold film" on the surface of the glass, preventing carbon dioxide from condensing on the glass and having a defogging effect. However, the disadvantage is that it is not suitable for winter use, and it will continue to fog up after turning off the cold air.

In principle, the reason for the fogging of car glass is that the hot air in the car meets the cold glass and condenses on the inside of the glass.

So there are two possible solutions:

Turn on the refrigeration to reduce the temperature of the air inside the car to the same as that outside the car;

Turn on the heating so that the temperature of the glass is the same as in the car.

Hot air can be turned on on both rainy and snowy days.

Most people choose to turn on hot air when they see this situation, although it can also remove these fogs, but it takes a long time to remove, and it is very suitable to tell you that it will be re-formed soon.

And on some cars, there will be a special defogging function. It is divided into two buttons, the left side is the front windshield defogging, and the right side is the rear windshield defogging. In some cars this may be a separate button, and in some cars it may be one of the options for the air conditioning wind direction.

So just turn on this feature. There is no need to think about what internal and external circulation, hot and cold air conditioning problems. And turning on this function will not lower the temperature in the car.

In winter, the windows are fogged up, open to cold, stool wind or warm air.

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 fog of the car window will become more and more at the beginning, 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 problem of driving fogging:

Special defogging agent, there are many defogging products on the market, the use is relatively simple, Zhichang CTS is sprayed on the windshield, and wiped 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.

The use of warm air and cold air for window defogging is OK before the letter, but the de-skiding of the cold air is faster, but it may do a second fogging. The defogging speed of the warm air is relatively slow, but there is no need to worry about secondary fogging.