Misted glass is not only unpleasant. This seriously restricts visibility and can lead to an accident due to the fact that the driver did not see another car or was unable to orient himself in the traffic situation in time.
One of the main reasons for the fogging of the windows is the increased humidity in the cabin. It can arise due to the fact that in snowy or rainy weather the driver and passengers get into the cabin in wet shoes and clothes. They put wet umbrellas on the rugs. Moisture can also enter through the stove from the melted snow near the engine compartment. Yes, and people in the cabin exhale, together with the air, water vapor, which condenses on the glass.
How to deal with glass fogging?
First, you need to make sure that no water accumulates on the car mats. Therefore, shake the snow off your shoes before getting into the salon. And if moisture has accumulated on the rugs, it should be poured out. It is easier to do this without spilling some of the water on the upholstery if the rubber mats have a high side. Keep this in mind when buying new car mats. In winter, it is better to use rubber carpets. They, in contrast to pile, are better cleaned of water, snow and dirt.
Also, before driving, you should sweep away the snow that accumulates on the ventilation grill located between the windshield and the hood. After the engine has warmed up, this snow will melt and moisture will go straight into the ventilation system, and from there into the passenger compartment.
You can use anti-fogging agents that are sold at any car dealership. This composition prevents moisture condensation on glass. It must be applied in advance on the cleaned, dry inner surface of the glass.
What if the glass is already fogged up?
Open the air recirculation flap and turn on the air conditioner. It dries the air, so it is the most efficient and quickest way to get rid of fogging.
11/09/2018 0 1 321 views
Almost all car enthusiasts are faced with the fact that the windows in the car fog up from the inside and you need to know what to do in such a situation. Sweat-covered windows significantly impair visibility and often lead to road accidents.
Even experienced transport owners do not always attach importance to this, considering that such a problem is commonplace, natural and ordinary. But it is worthwhile to establish the reasons for such a process and try to prevent them, so as not to waste time before each trip and not put yourself and passengers at risk of an accident.
Why is this happening?
Evaporation occurs on the windshield as a result of a natural phenomenon called condensation. The transformation of water droplets from a gaseous to a liquid state occurs when there is a difference in temperature and humidity inside the transport and outside. If people get into the car, the amount of moisture rises sharply, from which the windows fog up a lot.
The speed and intensity of this process depends on how cold the surface turned out to be. If the temperature is below the so-called dew point, then condensation occurs very quickly. This indicator is also influenced by other conditions:
- The difference in temperature in the cabin and outside - when cold and heat come into contact, condensation forms on the glass.
- High humidity of objects and other objects in the car. For example, in rainy weather, when the car warms up, water intensively evaporates from wet clothes, rugs, blankets, seats, etc. And it remains on the glass.
- Exhaled alcohol vapors from the passenger are also often the cause. After all, when you drank a little alcohol, drops of water settle on the surrounding surfaces much faster.
- A clogged filter, which is obliged to absorb excess moisture and dust, ceases to perform its function. As a result, an excessive amount of water remains on the glass panes.
- It may also indicate a malfunction of the air valve, its sensor, or the blower system dampers. Then the forced ventilation is reduced, which leads to the accumulation of moisture.
- If even a slight leak of antifreeze from the radiator of the stove begins, it is almost impossible to notice it without a special check. But in this case, the relative humidity increases by almost 20%, which is manifested by excessive fogging of the windows in the cabin. In this case, not only air evaporation is detected, but also an oily trace on the surface.
- When the seals on the car doors are old, they lose their integrity. Then, during the washing of the vehicle, a little water gets inside and does not always have time to dry naturally.
What to do if car windows fog up?
When fumes are constantly observed on the windows, you need to have simple tools at hand. Choose the method that you like best:
- Start the transport by heating it. Turn on the fan at the same time, this will significantly speed up the process.
- You can blow the glass with warm air in any other way.
- It is advisable to clean the surfaces of accumulated moisture before all passengers get into the cabin.
- You can install a special device for recirculating air so that the windows in the car do not fog up.
- Keep a suitable soft cloth on hand to quickly absorb excess moisture from the surface. Do not forget to dry it on time. For example, one dries at home, and the second you take on the road. Swap them at the end of the day.
- Today, more convenient means have been invented in the form of special nanofilms, sprays, gels, solutions and other chemical materials that can prevent the formation of condensation on car glass by creating a protective surface.
There are also folk recipes:
- Use shaving foam. It needs to be applied quite a bit on the inside of the glass and wiped with a rag.
- The edible salt in paper bags is laid out on the bottom of the panel. If you put it under the windshield, it will quickly absorb excess moisture. Periodically they need to be changed to fresh ones.
- Rub the cut lemon on the windows from the inside of the cabin and pat dry with a towel.
- Even a simple newspaper can quickly remove condensation from the surface.
- In the corners, you need to draw small circles or squares using simple soap, and then wipe the windshield, thereby creating a special protective film from the soap solution.
It is also important to carry out preventive work on car care:
- Change the cabin filter in time, clean the corresponding cavity, sump and drain hole. This is recommended when changing seasons, for example, in autumn and spring. With less intensive use - once a year.
- To prevent excessive accumulation of condensation in the cabin, you need to periodically dry all carpets and seats. It is also undesirable to keep a large number of fabrics, bedspreads, rugs so that they do not absorb moisture.
- To improve ventilation, periodically check the operation of valves and other airflow systems. Sometimes you can open windows or doors to ventilate the cabin.
How to remove fogging when it rains?
This problem often worries motorists during the rainy season. To quickly cope with excess vapors, you need to adhere to the following rules:
- ventilate the salon often;
- heat it up with a fan;
- do not leave wet things inside for a long time;
- after each ride, dry the seats and other wet objects, avoid puddles on the rubber mat, wipe it down;
- monitor the operation of ventilation systems, fix breakdowns as soon as possible.
In the rain, this trick will also help. While you are driving somewhere, you can slightly lower the side window, and when the car is in the garage, it will be useful to open the doors to let in more fresh air.
How to get rid of the problem in the winter season?
Even more acute fogging of windows worries the owners of their own vehicles in the cold season. Then not only drops of excess moisture collect on the glass, but also freeze, which is why the cleaners often break if you turn them on too early.
The reasons that condensation increases during the cold season are as follows:
- Glasses without heating quickly reach low temperatures, which are well below the dew point. This increases the warm-up time.
- If the air humidity is high, or in rainy or snowy weather, too much water gets into the passenger compartment. When it accumulates, then when the stove is turned on, evaporation and condensation form quickly.
- Even when the car is moving, the glass is constantly cooled by the oncoming air currents. Therefore, it is rather difficult to maintain the surface temperature at a certain level.
The best ways to deal with the problem.
How to be and what to do.
Every driver at least once in his life has encountered such an unpleasant phenomenon as fogging of windows. In such a situation, windows do not just create discomfort, they can become a serious problem, because perspiration significantly limits visibility. Why is this happening? What to do in such a situation? Here are some tips for doing this.
Reasons for fogging windows
It is important to understand why this is happening.
Car windows can fog up for several reasons. Each of them is based on the process of steam formation. In the cold season, the glass of a car can become covered with condensation due to the temperature difference in the car interior and on the street. In addition, glass fogging occurs during rain, in damp weather. A defective or dirty cabin filter, its infrequent or untimely cleaning, can also cause condensation to form.
If an oily film begins to appear on the windows of the car, this is a dangerous signal indicating a leak in the battery.
General solutions to the problem
There is nothing difficult in eliminating perspiration.
1. First of all, it is necessary to correct the settings of the car's climate system. A directed stream of warm air can solve this problem in just a few minutes.
Turning on the stove most often does not work unless it is used in conjunction with the ventilation system.
2. You can resort to the use of special tools, which today are present in sufficient quantity and range on the market. Most of these "helpers" are readily available.
3. Drying and preventive ventilation of the passenger compartment will make a huge contribution to the fight against fogging of windows. Sometimes it is enough just to open the vents for this.
What to do when it rains
The main thing is to keep it dry.
1. First of all, the side windows should be slightly opened immediately after starting the movement. This will improve the air circulation in the passenger compartment. Do not forget about preventive drying and ventilation of the passenger compartment after the trip.
2. Do not leave wet things in the cabin, such as an umbrella.
3. Timely change and clean the pollen filter, eliminate malfunctions of the valve or sensor that regulates the operation of the dampers.
The windows fog up in winter, what to do
It is not difficult to remove fumes in winter.
In such a situation, it is best to use a special composition. Its regular use should completely eliminate the problem. However, you can try to solve the issue with improvised means. First of all, you can wipe the windows with a rag with shaving foam. You can do the same with lemon or soap. Finally, you can spread the newspaper or bags of salt in the cabin.
»If the windows in the car are sweating - what to do and what are the reasons.
Very often we ask ourselves why the windows sweat in the car? If there is no air conditioner, then you have to wipe it, leave streaks, suffer looking out for pedestrians on the road, you need to sort out all the causes of this ailment and try to get rid of it.
Why doesn't his car have wipers on the inside of the windshield? I was about to drive, but all the windows in the car were fogged up. This question becomes especially relevant when the thaw on the street is unexpectedly replaced by frost or in winter. It must be admitted that a detail that is insignificant at first glance can lead to sad consequences. Let's try to figure it out: why the windows in the car sweat and what to do to find a way out of this situation.
Water condensation
The fault is why your car windows sweat, moisture becomes.
Not water itself, but wet fumes that can appear from a change in temperature regime, from the inside, and "overboard" of your car. You can conduct a small experiment - just breathe a little on a glass, mirror surface, you will immediately understand why do the windows in the car sweat... One can observe when mirrors or any other mirrored surfaces in the bathroom sweat while taking a shower. It should be noted that there are wet drops on any object; they are not always visible with the naked eye. This process is called moisture condensation.
Condensation is the state of a substance (in our case it is water) when it changes from a gaseous state to a liquid. The phenomenon occurs with a sharp cooling of the environment, the product of this process is called condensation.
Why does the windshield sweat? The key point is the concept, "dew point". Indicates a condition where the air flow is saturated with moisture due to temperature, as a result of which condensation forms. The main components are indicators of temperature and humidity in the air.
If the humidity of the air masses is minimal, then it is worthwhile to greatly lower the temperature to see how the windows sweat.
It turns out that in winter and in summer, the "dew point" is different, with frost and warmth, the humidity of the air masses is completely different, it is the glasses of your car that sweat, acting as a kind of platform on which condensation is released. The fogged window forms a border that divides two temperature regimes: on the surface of the car and in the passenger compartment.
The reason why the windows in the car sweat in winter and summer is different.
- In summer, the humidity is much higher, so the dew point can only be reached at high temperatures. Condensation is released only when the air conditioner blows cold air onto the glass. Hence the conclusion: car windows fog up when the windows outside are warmed up by the sun or warm air, and from the inside of the cabin the temperature regime is lower. But the most interesting thing is that when the air conditioner hits the dry air directed from the air deflector, sweating instantly disappears, drying the moisture with a dry stream.
- In winter, the situation is the opposite: it is hot inside the car, outside the temperature is lower. The difference is that in the cold season the dew point appears only at low temperatures. The same happens in the off-season - constant rains greatly saturate the air with moisture, the glasses fog up so that nothing is visible through such a window.
- Any time of the year after using the air conditioner for a long time and turning it off windows always sweat in the car, this happens due to the accumulation of moisture in the heater, which has collected during its use, it takes a certain time to dry the stove. It is recommended to turn on the heater at full power and slightly open the foggy windows of the car for a slight draft.
Why do the windows sweat in the car - video
What to do in this situation? The easiest option is to wipe the glass in the car with a dry and clean cloth. The windows will stop sweating, but soon it will happen again. In addition, constantly wiping misted windows with a rag while driving is an unsafe and dangerous occupation. But there is no other option, and this is the easiest way out. It must be remembered that it is not recommended to wipe the rear window of the car, as some of the condensation will accumulate on them, as a result, the front window will sweat less and will remain much more clean and transparent. It is installed in some cars, it is not recommended to turn it on if you do not need a rear view.
To achieve a greater effect, one must understand the very nature of this phenomenon.
Condensation appears in the car interior due to the temperature difference and therefore it should be made as small as possible. If an air conditioner is installed in your cabin, you can start the cold blowing mode of the windshield. The glasses will quickly clear of fogging. A stove is also suitable for this purpose, which is (unlike an air conditioner) in any vehicle. Turn it on at maximum speed and direct the nozzles to the front window. Soon your windows will be clear and comfortable to ride.
The very last option, what to do, so that the windows do not sweat (if your car does not have an air conditioner, and the stove is out of order) - just lower the side windows. At the same time, the temperature inside the car will drop, and the people inside will not be very comfortable.
The windows in the car are sweating: what to do?
There are several options to fix the fogging problem:
- hot air - you need to direct the nozzles to the windows and soon the moisture from the surface of the window will evaporate;
- the air conditioner will create constant air circulation and moisture will disappear from the passenger compartment;
- anti-fogging agent - the glass must first be washed and dried, and then this agent must be applied from the inside of the window.
Do not apply it to glasses if they are fogged up. It will simply drain off the glass along with the water.
In most cases, car manufacturers install rear windows in heated vehicles. It is a thin mesh that easily conducts electric current. If you turn on the heating, then electricity is supplied to the wires, the glass heats up slightly and for a short time it becomes transparent.
Foreign car manufacturers use the same nets on their windshields. It is located at the bottom of the windshield and does not interfere with traffic at all. But the effect of this is huge. The driver gets rid of the need to constantly wipe the windshield before driving, to warm up the car for a long time while waiting for the glasses to clear and stop sweating.
Also used are the original chemical reagents with which the windshield of the car is treated. The purpose of such reagents is reduced to one effect - it is necessary to make the outer side of the windshield absolutely smooth. Moisture will not accumulate on such glass - it will easily flow down the glass.
Also in the store you can buy a chemical that the driver applies to the windows of his car. The principle of operation in this case is quite simple. The surface of the glass during processing becomes absolutely smooth and very slippery. As a result, water droplets will not accumulate on the surface - condensation will simply flow down. But this has one drawback, and a rather significant one - it is useless to use them in winter, because if the outside temperature is freezing, the water will quickly freeze.
Sometimes on the forums the question is often asked: "Why do the windows in the car sweat?" Different answers from motorists are posted and you can find a way to eliminate fogging of glass in the car. Motorists are advised to replace the cabin filter. Such an accessory contains an absorbent. It absorbs excess water, thereby blocking its access to the vehicle interior. But if the filter gets clogged, moisture will freely enter the car's interior and, as a result, the windows sweat again. But if you installed a new filter, and the glasses still fogged up, look for the cause in the breakdown of the air recirculation valve. It can fail (jam) and stop working.
Experienced motorists advise the simplest and most radical (in their opinion) method of what to do in such a situation. It is necessary to sew a small bag, then pour salt into it and put this bag under the "torpedo". Salt has a high percentage of hygroscopicity, so moisture is quickly absorbed into the salt and this can also prevent fogging of your car windows.
Conclusion
When the windows in the car sweat, then this is such a moment that almost all motorists meet in their practice. If you find out the reason why condensation appears on the glass and start doing something in time to eliminate this unpleasant problem, then it can be significantly reduced. In any case, there should always be a dry and clean cloth in the vehicle interior.
It is enough to make two or three circular movements on the windshield and you can go. Good luck on the road!
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Are the windows sweating in the car? Don't rush to drop off passengers. It was not they who "breathed" on the glass. Glass fogging can have various causes. Below we will analyze why the windshield can fog up - and what to do in each case.
Reason 1: high humidity
The windshield fogs up not only in rainy weather. Condensation can also occur in dry weather. The reason is high air humidity.
Solution:
- Warm up the car without passengers.
- Switch on the suction of outside air.
- If your car has an air conditioner, turn it on. Direct the air towards the glass. It is recommended to cover the holes in the central part so that the condensate evaporates faster. Be careful! If it is cold outside, the hot air can crack the glass. Therefore, this method is not universal.
- Clean the inside of the glass regularly. First clean them using auto chemistry, then wipe dry without touching the glass with your hands.
- Use a special auto chemistry to protect against condensation. Such products create a water-repellent film on the glass. Choose good quality products, otherwise there is a risk of encountering non-drying greasy streaks.
Reason 2: dirty cabin filter
A dirty cabin filter is one of the most common causes of fogging. It significantly impairs ventilation in the car, resulting in excessive moisture.
Solution: Change the cabin filter in a timely manner. It is advisable to change it every 20 thousand km.
Reason 3: improper operation of the climate control
It happens that the drain hole of the climate control is clogged and the condensate is not removed from the system. As a result, water droplets settle on the glasses.
Solution: what to do if the windshield is sweating due to a malfunctioning air conditioner or climate control? Just clean the drain hole of the appliance.
Reason 4: the drain holes are clogged
Normally, excess moisture is removed from the air in the passenger compartment through ventilation. There are special drainage holes under the hood of the car through which condensate is discharged to the outside. When these holes become clogged, excess fluid does not escape. It accumulates and at some point can leak through the filters. The result is increased humidity in the cabin and condensation on the glass
Most often, the problem with drainage holes occurs after autumn, when leaves and dirt get into the engine compartment.
Solution: Check for clogged drain holes under the hood. Clean them if necessary.
Reason 5: wet salon
Pile and fabric rugs, seat upholstery - all this perfectly absorbs and retains moisture. When the driver turns on the heater, the temperature in the passenger compartment rises and moisture begins to evaporate. Condensation forms on the windshield.
Solution: Use rubber mats (at least in wet weather) and keep them free of cracks. Dry the flooring thoroughly after washing.
Reason 6: wet soundproofing
If the car had to overcome water obstacles (including deep puddles), it is very likely that the sound insulation got wet. Many standard soundproofing materials absorb water well and retain it, which leads to increased humidity in the cabin.
What to do: If the windshield is sweating due to the soaked soundproofing, you need to remove the soundproofing and dry it.
How do I clean my windshield correctly?
- Use a cloth or microfiber sponge.
- It is most effective to wipe the car glass diagonally - this way there will be fewer stains.
- In winter, it is necessary to clear the glass of ice not only for viewing. Snow on the glass and hood melts and water can leak through the radiator.
