【The owner's family car knowledge】Some small details often have a big impact! The fog on the car glass affects the line of sight. I believe that the majority of drivers have encountered a common problem. However, when there is no fog, I usually don’t pay attention to this detail. When I get into the car and encounter the fog, I find that there is nothing I can change while driving. You can only use a dry cloth or tissue paper when you stop at the traffic light. Wiping the glass hard, parking the car does not affect anything, it is a bit of a waste of arms, but if you are driving, especially on highways where you can't stop, it is very dangerous to do so! So this is a detail that cannot be ignored.
The reason for the fogging of the car windows is that the temperature difference between "heating inside and cold outside" is large, which may be more than ten degrees, and even up to 20 degrees in winter, so that fog will appear on the glass. This physical common sense will not be repeated here. The following editor will share with you some methods on how to prevent fog and defog.
The first type of method-use special defogging products
In many markets and Auto Parts City and other places, there will be booths selling defogging and anti-fogging products, such as defogging agents or fog towels. Spray this type of defogging agent on the inner surface of the car glass and wipe it clean. While removing the glass dirt, it can also form a thin layer of transparent protective film on the glass, which can prevent the condensation of water vapor on the glass. The fog layer can be anti-fogging for ten d
【The owner's family car knowledge】Some small details often have a big impact! The fog on the car glass affects the line of sight. I believe that the majority of drivers have encountered a common problem. However, when there is no fog, I usually don’t pay attention to this detail. When I get into the car and encounter the fog, I find that there is nothing I can change while driving. You can only use a dry cloth or tissue paper when you stop at the traffic light. Wiping the glass hard, parking the car does not affect anything, it is a bit of a waste of arms, but if you are driving, especially on highways where you can't stop, it is very dangerous to do so! So this is a detail that cannot be ignored.
The reason for the fogging of the car windows is that the temperature difference between "heating inside and cold outside" is large, which may be more than ten degrees, and even up to 20 degrees in winter, so that fog will appear on the glass. This physical common sense will not be repeated here. The following editor will share with you some methods on how to prevent fog and defog.
The first type of method-use special defogging products
In many markets and Auto Parts City and other places, there will be booths selling defogging and anti-fogging products, such as defogging agents or fog towels. Spray this type of defogging agent on the inner surface of the car glass and wipe it clean. While removing the glass dirt, it can also form a thin layer of transparent protective film on the glass, which can prevent the condensation of water vapor on the glass. The fog layer can be anti-fogging for ten days-half a month or so by spraying once. Of course, the way to spend money to save trouble, for a simple problem like fog, the cost of this money must not be the most cost-effective.
Edit comment:Buying a defogging agent to prevent fog is a bit more effective, and the effective period is not long, the editor does not recommend this method.
The second method-window convection
If there is not much fog, we can open a gap between the windows on both sides (not when it is raining), so that the air in the car will be convective, and the temperature inside the car will slowly approach the temperature outside the car, and the fog will be Disperse. The advantage is that it can achieve the effect of turning on the air-conditioning without increasing fuel consumption, but this method is not applicable in all situations, such as cold winter and rain.
Edit summary:This is a good method when it is not raining and the temperature is acceptable. The disadvantage is that it is not suitable for high-speed running.
The third method-use air conditioning system
We encounter windshield fogging in winter and rainy days. I believe many of my friends have used air conditioning systems to defog the fog. In fact, there are some tips here. I believe that many friends have doubts and disputes about whether to use cold air or warm air to remove fog. In fact, this issue is two-sided, and it is discussed due to different circumstances.
The usual practice is to turn on the fan and refrigeration switch in the car, so that the air-conditioning air blows on the glass and the mist will disappear soon, and the effect is very quick and direct. This is because the cold air is blown on the glass, forming a "cold film" on the surface of the glass, preventing carbon dioxide from condensing on the glass, and has the effect of defogging. One of the biggest drawbacks of this method is that people in the car may feel very cold. Imagine that it is really uncomfortable to blow air-conditioning in the car on rainy days and winter where fog is prone to appear! Blowing for a few minutes may turn off the air-conditioning After a while, the fog began to hang on the glass again, and the air conditioner was turned on again... This repeated operation is inconvenient and the temperature in the car will be very unsuitable. In addition, the lowering operation poses a certain hidden danger to safety. Of course, this method can also be used if you are very strong or have just finished intense exercise.
So can you use hot air to defog? The answer is absolutely yes! Turning on the hot air will not increase additional energy consumption, and you can drive comfortably, killing two birds with one stone!
But one thing to remind everyone, when the glass is already fogged while driving, the fog on the glass will become more and more serious. It is even more obvious when the air is full of moisture in rainy days, and the front windshield will be removed at once. It becomes frosted glass, which is very dangerous! So the editor suggested that it is best 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.
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. It does make the fog inside the glass bigger when it is just opened. This is because the temperature difference between inside and outside is greater. After the hot air dries the moisture in the car, the glass will become translucent. The process will take 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, wait until the mist on the inside of the glass is completely dried, and then reduce the temperature to be OK, so that it will not start again during driving. It's foggy because the inside of the car is dry. Reminder: It is good to ensure that the hot air does not fog up. Don't make it too hot, you may catch a cold when you get off the car.
Tips:
In addition to the front windshield, the side windows will also be foggy, and the fog on the front side windows will affect the driver's observation of the rearview mirror. Today's cars have a separate air outlet for blowing the front side windows, but it is generally very small. If the effect is not obvious, we can close the two central air outlets, so that the air outlets on both sides can get a larger output. Air volume. (The air-conditioning of some high-end cars is independently controlled and may not be applicable)
Edit summary:The air-conditioning defogging effect is very fast, but the interior of the car will be relatively cold; the hot air effect is a little slower, such as hot air defogging before driving, it will be very refreshing and warm all the way.
The fourth method-detergent anti-fogging
If you still find the above methods difficult to remember and cumbersome to operate, you might as well blend an "anti-fogging agent" to prevent fogging. There are also many introductions on the Internet and tips and tricks programs. The easiest way is to use detergent to blend. The ratio of detergent to water is about 1:10, then use absorbent cotton or a clean soft cloth dipped in it and apply it on the inside of the front and rear windshields.
After drying, wipe off the remaining watermark on the inside of the glass with chamois. This is a good method. The principle is basically the same as spraying a special anti-fogging agent (the effect may be slightly worse), but it can be maintained for a period of time without operating the air conditioner. It is a simple and economical method.
Rear windshield defogging-just heating
At present, the cars sold on the market basically have the "rear windshield heating" function. The position of the switch button is different for each model. Just look at the manual to find it. Turn on the "rear windshield heating" switch, and the fog on the rear window will dissipate in less than a minute. It should be noted here that the rear sight is also very important!
The above is the defogging tips verified by the editor. I hope it will be helpful to all car owners and share them with the majority of netizens.
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