Why can the fog from the front glass of the car be removed whether the air conditioner is turned on

Updated on Car 2024-04-19
20 answers
  1. Anonymous users2024-02-08

    The reason for the formation of "fog on glass" is that the moisture in the hotter air in the car meets the cooler glass and condenses into water droplets or ice, and the air conditioner can bring the glass to a similar temperature to the air around it, whether it is cooling or heating, as long as the condensation process is stopped.

  2. Anonymous users2024-02-07

    The temperature of the hot air conditioner glass is high, and the water vapor evaporates. Cold air conditioning, the water vapor in the air is absorbed by the air conditioner and discharged to the outside of the car, and the humidity in the air is small and will not condense.

  3. Anonymous users2024-02-06

    Because the temperature inside the car is low and the temperature outside the car is high, the water vapor in the air outside the car condenses into small water droplets attached to the glass, which becomes the so-called fog, and the fog is composed of small water droplets.

    The front glass can be blown with cold air to keep the inside and outside temperatures of the front glass consistent and to form a dry wind wall to prevent condensation and fog. Turning on the defroster will definitely turn on the air conditioner, at which point the compressor will start, be careful about fuel consumption. At the same time, doing so will lower the temperature inside the car in winter.

  4. Anonymous users2024-02-05

    Because the inside is hot and the outside is cold, there will be fog in the air, so it's very simple, rub a piece with toothpaste. Then wipe dry so that it doesn't fog up, you can put some toothpaste on the mirror at home and blow it with your breath, the mirror won't fog up. There is also a bathroom mirror to apply some toothpaste, and the bath is not foggy.

  5. Anonymous users2024-02-04

    Because the temperature inside the car is much lower than the temperature outside, the moisture in the outside air condenses into water when it encounters a very low temperature windshield, which is the same as the glass window in a room in winter.

  6. Anonymous users2024-02-03

    Since the air conditioner is turned on, the temperature inside the car is larger than the outside of the car, and the temperature on the glass is naturally larger than the outside of the car.

  7. Anonymous users2024-02-02

    Brother, your temperature is too low. Or it's humid outside. I usually use the internal circulation, and the air conditioning outlet is used under the feet and on the head. It will not affect the front windshield.

  8. Anonymous users2024-02-01

    This problem can arise when the weather outside the car is hot and humid.

  9. Anonymous users2024-01-31

    caused by temperature difference between inside and outside and air humidity. If the temperature inside the car is high and it is cold outside, the moisture inside the car will condense onto the cold glass, forming a fog. At this time, it is usually necessary to turn on the air conditioner and adjust to the position of blowing glass, and use warm air to blow the fog away.

    But the heat brings a larger fog for a short time before the glass is heated. Therefore, you can use cold air to blow the glass, or open a little window, so that the temperature of the glass is consistent inside and out, and there will be no fogging. In some parts of the south, the opposite is true, where the temperature inside the car is low and the outside is hot and humid, and the moisture will adhere to the cooler outside of the glass.

    It can only be removed with wipers. Or pay attention to the air conditioning gear to prevent the cold air from blowing into the glass inside the car, and it will also avoid fogging outside.

  10. Anonymous users2024-01-30

    Hello oh dear, the fog outside the windshield of the car air conditioner is caused by the following two points: 1The moisture in the air was blown onto the windshield and condensed into a mist.

    This usually happens in humid or rainy celebratory weather, where the humidity in the air is high. When the air is set to a lower temperature, the cold air formed lowers the temperature of the windshield, causing the moisture in the air to condense and form a fog. 2.

    The humidity of the air inside the car is too high. Usually this situation can be caused by improper humidity regulation in the car, or moisture entering the car. When the air humidity is too high, the moisture in the air can form a fog between the surface of the windows.

    Here are some things you can try:1Adjust the air vents of the air conditioner.

    Adjust the air outlet to blow as little cold air onto the windshield as possible. 2.Make sure the humidity inside the car is normal.

    You can regularly check the interior of your car for moisture and keep it clean and dry. 3.Clean the surface of the window.

    You can use in-car air circulation and high-speed mode to remove moisture from windows when fog and rental gas appear, or use a professional car glass cleaner to clean window surfaces. <>

  11. Anonymous users2024-01-29

    When driving, the car glass is foggy, turn on the air conditioning in the car to heat, you can remove the fog in the car, and the specific operation steps of turning on the air conditioning heater in the car are as follows:

    1. Press the driver's brake pedal of the car.

    2. Press the car's one-button start button.

    3. The instrument of the car lights up and the vehicle starts.

    4. Press the auto button to turn on the air conditioning system.

    5. Turn the car temperature adjustment knob to the right side to turn on the heater system.

  12. Anonymous users2024-01-28

    Heating in the winter, cooling in the summer and the rainy season, both have to hit the wind on the windshield (please adopt or recommend, thank you).

  13. Anonymous users2024-01-27

    In winter, it is recommended to open a small gap in the window of the left and right driver's seats when the car is cool, use the external cold air to enter the car for natural defogging, wait for the engine water temperature to come up, close the window and turn on the warm air and external circulation, change to internal circulation after the moisture in the car is removed, and then change to external circulation after finding that fog appears again in the car, and so on, and so on.

  14. Anonymous users2024-01-26

    Depending on the situation, in summer, when it is hot outside, the air conditioner is cold inside, and the water vapor outside is liquefied when it is cold, and there are water droplets outside the window, on the contrary, in winter, when it is cold outside, the air conditioner is turned on inside, and the water vapor inside is liquefied when it is cold, forming water droplets on the inside of the window.

  15. Anonymous users2024-01-25

    It's cold on the outside and hot on the inside, or it's hot on the outside and cold on the inside, and it's easy to get foggy on the cold side, as long as the idea makes the temperature difference too big.

  16. Anonymous users2024-01-24

    In winter, it is recommended to make heating, if it is cooling, no one can stand it, and it is winter.

    However, it takes a while to heat and defog, because the car does not have a hot air conditioning function, the heating is heated by the heat dissipation of the engine, and the engine can only provide heat after starting after starting, and the heating and defogging is to evaporate all the water vapor in the cold air in the car, so the defogging is slower than the refrigeration at first, but once the defogging is done, there will be no more fogging, refrigeration and defogging, if it is turned off, the fog will rise again, I hope to adopt my answer, I am after my own research, experience talks!!

  17. Anonymous users2024-01-23

    Defogging with air conditioners is a common practice. Turn on the cold air to blow the glass, and the defogging effect is very straightforward. But the people in the car can also feel cold, and if the moisture in the car is not dispersed, the fog will soon appear on the glass.

    Blowing glass with hot air is better than blowing glass with cold air, but the effect is slower than cold air. When the hot air dries the water in the car, the glass does not fog up again for a long time. Turn on the hot air when you park, then pick up a rag and wipe it off.

    In addition, the external circulation of the potato during driving can also prevent fog to a certain extent.

    In winter, warm air is blown with warm air to quickly increase the temperature of the front glass, reduce the temperature difference between the inner and outer surfaces of the glass, and prevent excessive fog vapor from the front windshield in time. We should first understand the root of the fog. In fact, due to the temperature difference between the inside and outside of the car, the low temperature outside the car causes the front windshield to be cold, and the warm and humid air inside the car meets the cold front windshield, which liquefies and produces fog.

    Because, in order to really remove the fog, it is necessary to reduce the humidity and temperature of the air inside the car, or to increase the temperature of the front windshield. 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 cars have an air outlet that blows the front side window separately, but it is usually small.

    If the effect is not obvious, you can close the two ** air outlets, so that the air outlets on both sides can obtain a larger air outlet.

    If the foggy mountain shouts not much, and the outside temperature is not very low, you can lower part of the windows on both sides to make the air in the car convection, and the temperature in the car will slowly approach the temperature outside the car, and the fog will dissipate. The method of blending "anti-fogging agent" anti-fogging has been well known to many people. The ratio of detergent to water is about 1-10, then dip it on the inside of the front and rear windshields with absorbent cotton or a clean and soft cloth, and wipe off the remaining watermarks in the glass after drying.

    It would be better with an air conditioner. It is a common practice to use the air conditioner's defogging function. Increase the air volume appropriately, turn on the refrigeration switch at the same time, then the cold air will blow onto the glass, and the fog will dissipate quickly, the effect is very fast and very direct.

    In addition, hot air can also be defogged. Turning on the hot air not only adds additional energy consumption, but also allows for comfortable driving. In fact, blowing glass with hot air works better than with cold air, but the process is much slower than with cold air.

    When it is first opened, it does make the fog inside the glass bigger because the temperature difference between the inside and outside is greater. When the hot air dries the water of the car, the glass will become bright, and the process will take a few minutes because the car is dry and will not fog again for a long time. Turn on the air conditioner and remember to turn on the AC.

    In this way, the cold air or heating will vary from car to car. The defogging speed is effective. But off.

    Immediately after AC, fog will appear on the glass. The air conditioning needs to be on all the time.

  18. Anonymous users2024-01-22

    Air conditioning defogging is the fastest and most effective method, you don't have to think about other empty bridge loss macro methods, air conditioning refrigeration defogging is very scientific, cold air defogging effect is the fastest, open the book to the immediate effect.

  19. Anonymous users2024-01-21

    Yes, this method is more scientific, and it is also the most effective, it is particularly clean after cleaning, and it will not affect the line of sight.

  20. Anonymous users2024-01-20

    It is more scientific, and most old drivers will use this method to defog and will not affect the range of sight.

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