How to prevent car windows from fogging up


The windows of the Lada Granta fog up from the inside. What to do

Sudden fogging of the Lada Granta windshield not only reduces visibility, but also causes discomfort for the driver. Every second car owner is familiar with the problem.

The personal safety of the driver and passengers depends on how quickly the cause is eliminated.


Most often, car owners do not know the real reason why the glass on their Lada Grant fogs up. Wipe it again and again with a rag, but the problem does not go away.

The retail network offers to buy all kinds of glass coatings, special chemical compositions for processing, rags, etc., but the effect is not always guaranteed.

Reasons for fogging of windows on Lada Granta

Condensation on the surface is the result of the physical phenomenon of mass vaporization.

The most common causes of fogging are:

  • temperature contrast outside and inside the car. Most often, this happens in winter, at subzero temperatures;

The interaction of the two flows leads to abundant vaporization. A thin layer of condensation forms on the surface.

    excess moisture during rain. Moisture evaporates from carpets, seats, and interior trim. Its concentration exceeds the amount of air several tens of times;
  • Often the cause is deformation of the windshield insulation, doorways, depressurization;
  • excessive clogging of the cabin filter, which leads to similar problems on the road;

  • malfunction of the wind damper on the regulator. In cars over 20 years old, the ventilation system is based on mechanics, cables, levers. Modern means are equipped with servos and all kinds of electronics. Sometimes technology fails. As a result, the cyclicity of the air flow is disrupted;
  • leak, depressurization of the radiator, cooling system as a whole. The first symptoms of this are an oily film on the outer surface of the windshield;
  • long-term car washing with water penetration into the interior;
  • passenger/driver with signs of residual intoxication.

What to do to prevent car windows from sweating in the rain

To prevent your car windows from sweating when it rains, you need to follow these rules:

  • To ensure proper drying of car windows, it is necessary to ensure good ventilation inside the cabin.
  • To better dry the rear window, you can use an additional fan or interior heater from the cigarette lighter.
  • It is also necessary to promptly check the operation of the cabin filter and, if any malfunctions are found, eliminate them or change the filter.
  • There is no need to leave wet things in the car. If you have such things, they should be dried.
  • Excess moisture in the cabin, for example, puddles on the mats, also needs to be removed in a timely manner.
  • In addition, it is recommended, simply for preventive purposes, to periodically dry the entire interior of the car (especially during the rainy season or on the eve of winter).
  • To prevent the windows from fogging up when driving in the rain, it is recommended to lower the side windows of the car slightly. And after the trip, it is advisable to open the doors for a few minutes to let fresh air into the cabin.

Common ways to eliminate fogging on Lada Granta

  • adjusting deflectors, increasing the speed of air flow from the stove heater. If you have a pre-installed air conditioner, this task can be completed in no time;
  • the use of special chemicals and anti-fogging agents. Among motorists they are called “anti-foggers”.

In auto shops and car markets, the choice is quite wide, both domestic and foreign manufacturers (liquids, spray bottle, napkins).

  • systematic drying, purging of the interior, especially after rain, washing, and other processing;
  • Carrying out comprehensive diagnostics and technical inspection strictly according to schedule. Violation of intervals causes a refusal of service at the service station.
  • install high-quality, original filters and cleaning elements;
  • simultaneous activation of the stove heater and ventilation. Separately, the air will circulate only inside the cabin. The problem will not be fixed.

Methods for cleaning glass from fogging

Below are five simple tips on how to clear fogged car windows.

  1. To clean the windshield and side windows from fogging, you must first turn on the interior heating and then direct a warm air stream onto the windows. In winter, special care must be taken, since the sudden interaction of internal hot and external cold air can lead to cracking of the glass.
  2. When it rains, it is better to blow on the car windows with slightly warm or completely cold air. Air temperature will not affect the result.
  3. In order to prevent the rear window from sweating, it is necessary to turn on its heating immediately after starting the engine.
  4. It is advisable to clean windows from condensation with a minimum number of people in the car, since the exhaled air contains moisture. In this case, glass cleaning will occur faster.
  5. If your car has an air recirculation function, you should also use it on the road to prevent the windows from sweating in the future.

And one more useful tip. In winter, to clean frozen windows, you do not need to immediately turn on the wipers - this can lead to their breakage and scratches on the glass. It is necessary to use a special non-freezing liquid to defrost ice; after spraying it, after a couple of minutes you can safely use standard windshield wiper blades or a plastic scraper.

So, let's summarize. The windows of absolutely all cars sweat, the only difference being that in some models, automakers have provided systems to prevent windows from fogging up, and in some - not. To prevent the windows in the car from sweating, the car interior must be kept clean and ventilated in a timely manner - this will ensure a comfortable and safe ride in any weather and season.

Folk remedies for glass fogging on Lada Granta

Please note that these recommendations will also be relevant for other brands of cars. When the windows sweat profusely on your Lada Granta, and there is no money at all to buy aerosols, use the following “tricks”:

  • shaving foam: apply a thin layer to the surface of the glass, rub with paper, ready;
  • salt: 2 - 3 small bags of salt in the cabin are enough and the windows will never sweat. Salt perfectly absorbs condensation;
  • lemon: buy the product in any store, cut it in half, rub the glass, wipe it with a rag;
  • newspaper: a universal means for cleaning, removing dirt, preventing fogging;
  • laundry soap: draw small figures in the corners of the windshield, wipe with a napkin. The soap film prevents the formation of condensation;
  • Prepare anti-sweat powder with your own hands: a mixture of ethyl alcohol and glycerin. Mix in a ratio of 1:25, mix thoroughly, ready. Use it and recommend it to others.

Reviews

Positive
1.Valery, 33 years old: foggy windows remind me of the need to replace the cabin filter on the Lada Granta. It causes discomfort on the way, but I turn on the stove heater and ventilation. Within 2 minutes it was gone.
2.Gennady, 41 years old: the car always spends the night in the parking lot, there is no garage. The humidity is high and the windows are fogging up. I found a solution in the form of an aerosol from a domestic manufacturer. It is not expensive, its effectiveness has been proven.
3.Konstantin, 39 years old: I work as a taxi driver, often orders in bad weather, rain, windows fog up instantly. I use aerosols, stove heaters, and ventilation. Sometimes I do just one thing, other times I use all three methods.
4.Vitaly, 34 years old: I work as a foreman at a service station, and I often see heavily fogged car windows. I recommend that owners change filters promptly and buy aerosols.
5.Ivan, 44 years old: I have long ago dealt with the problem of windows fogging up. I have my own garage, every evening I open the windows slightly at night, the car is well ventilated.
6.Sergey, 29 years old: the car is old, the seals on the doors are damaged in places, the windows often sweat. To quickly eliminate it, I use chemical reagents.
7.Vladlen, 38, I use the stove heater and ventilation system the old fashioned way. It always helps and I recommend it to you.
Negative
1.Kirill, 35 years old: I don’t trust advertisements and all chemicals. I use only my own prepared solution of ethyl alcohol and glycerin.
2.Vasily, 31 years old: tried a lot of aerosols, money wasted. A friend advised me to use plain paper. Now I always have the latest issue of the press in my salon.
3.Igor, 34 years old: I use regular lemon, which I rub on the glass, to prevent windows from fogging up. There is always a couple in the refrigerator in reserve.

Conclusion In the article - recommendations we dealt with the main reasons for glass fogging on Lada Granta. We considered the most popular means of protection and prevention.

If you lack funds, use traditional methods. If you have the opportunity to spend money on consumables, buy special chemical aerosols.

Let's sum it up

In this article, we figured out why the windows inside the car sweat, and we looked at the most common reasons why this happens. Every car owner is interested in learning the basic ways to eliminate fogging of car windows. We looked at the most popular among motorists. It is not necessary to run to the nearest automotive goods store; you can also cope with folk remedies.

In general, solving the problem with sweaty car windows is very easy and simple!

Article rating:

The windows of the Lada Granta are sweating Link to main publication

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With the onset of cold weather, when there is an excessive amount of moisture in the air and large temperature changes, one of the most common problems that arises among drivers is fogging of the car windows. This phenomenon occurs when the ambient temperature decreases, as a result of which the glass cools. Accordingly, since heat and moisture in the cabin do not evaporate , but cool near the glass, it settles on it in the form of tiny droplets. It is enough to sit in the car for only 2-3 minutes for the windows to become covered with tiny drops.

Of course, in this case, visibility deteriorates sharply, and the glass changes from transparent to dull-opaque. The driver ceases to see the surrounding situation, and moreover, he is also distracted in order to wipe the glass while driving, thereby increasing the risk of getting into emergency situations. If the windshield and two front side windows are still somehow saved by airflow and heating, then the rear ones simply “perish.”

Most car owners with experience in this regard give many different tips, which boil down to one thing - you need to change the cabin filter. But is this really so? What causes car windows to fog up?

How to remove fogged windows in a car?

There are various methods to combat fogging of car windows.

There are general rules for eliminating condensation:

  1. Adjusting the air conditioning system. It is necessary to ensure that the windows are constantly blown with warm air.
  2. Installation of several high-quality moisture absorbers in the cabin. Sorbents effectively absorb water from the space, drying it to the required condition.
  3. Treatment of glass with special agents that have hydrophobic properties. Even water molecules do not linger on them. Such products are produced in the form of aerosols, liquids and impregnated wipes.
  4. Opening windows a few millimeters. The resulting air circulation ensures the evaporation of condensation from all surfaces.
  5. Ventilation (air ventilation) and preventive drying of the interior. This helps to dry the upholstery of chairs, rugs and remove liquid accumulated in the niches.
  6. Regular vehicle maintenance. Timely replacement of filters, sensors and valves will prevent excess moisture.

In the rain

When it rains, water penetrates into the interior of the car, which, when heated, turns into steam, settling on windows, metal and plastic in the form of tiny drops.

You can get rid of glass fogging in inclement weather in the following ways:

  1. After starting to drive, open the windows on both sides of the car. The resulting turbulence will ensure condensation is blown off the panels.
  2. After finishing the trip, park the car in a heated garage. If possible, leave windows and doors open to dry out the cabin.
  3. Before planting, shake off snow and water from clothes and shoes, pack wet umbrellas in plastic bags or covers.
  4. Before the onset of the wet season, warm up the interior with a hairdryer to remove moisture from the upholstery. When damp air penetrates, the fabric plays the role of a sorbent.

During the winter season

During the cold season, the formation of condensation complicates the already difficult road situation. In addition, there is a risk of sweat freezing and ice crusts forming on the windows.

What you can do:

  1. Set the maximum heating temperature by directing the air flow to the front panel. Heat in the cab can be eliminated by opening the side windows.
  2. Use special preparations against condensation formation. Modern anti-fogging solutions for car windows allow you to get rid of this phenomenon without excessive heating of the interior.
  3. Install electrically heated panels. This will require additional costs, but they are offset by the comfort and safety of travel.

Why do glasses sweat?

Condensation on the inner surface of the glass appears when there is even a slight difference in temperature on one and the other side of the surface. Even by one or two degrees Celsius. And the greater this difference, the faster and in greater volume condensation appears . So, it can appear not only in the most common case, when the driver and/or passengers sit in a cold cabin, and as a result of their breathing the mentioned condensation appears on the windows. This phenomenon can also occur in the case, for example, of driving in cold tunnels or under overpasses, that is, where the ambient air temperature is lower.

The physics here is simple. At an air temperature of +20°C and a relative humidity of 60%, the amount of moisture is 9.6 g/m³. However, if the temperature is lowered to +9°C with the same moisture concentration, the relative humidity will increase to 100%. And this is the direct reason for the appearance of condensation on the surface of the glass in the car.

Causes of fogging

There are several main reasons why glass sweats. Moreover, each factor can influence both the general fogging situation and the fact that the windshield or only the side or rear window will sweat more. Let's do this in the form of a table.

What reasons influence window fogging?Head-onDriver's licenseLateralRear
Cabin filter
Wet seats
Incorrect airflow
Fume
Failure of the stove and/or internal ventilation

Cabin filter clogged or too dense

Due to the fact that it does not cope with its functions, a closed air space without ventilation is formed in the cabin. The temperature rises over time, the air heats up and the windows in the car sweat from the inside due to the physical phenomenon described above.

It is worth noting here that the cabin filter may not only be clogged, but also simply incorrectly selected, in particular, too dense. Its material does not cope with the passage of sufficient air and moisture remains in the cabin. This is the same reason why car windows sweat when you turn on the heater. In this regard, many motorists advise installing a standard filter in the cold season , and a carbon filter in the warm season. The standard one is not as dense and, accordingly, allows air to pass through it better.

Wet seats in the car

The main reason that seats become wet is that some moisture enters the interior and is absorbed by the foam seat. In turn, this phenomenon can be caused by the following factors:

  • passengers and/or driver in the cabin wearing wet outerwear (after snow, rain);
  • bad (old, rotten) rubber seals on car windows or doors;
  • leaving the car with open doors in a damp room for a long time;
  • spillage of liquid on the seats (a banal spill of water or other liquid, due to which it is absorbed and can remain inside the seat for a long time).

It is worth noting here that the humidity in the cabin can also increase due to the fact that the car is standing in the cold for a long time and then suddenly moves into a warm atmosphere.

Moisture under rugs

Wet floor mats are also the main source of moisture in the car interior in winter and autumn. And in turn they cause significant fogging of windows. There are several reasons why moisture accumulates on or under them:

  • clogged floor drains;
  • applied and subsequently melted snow in winter or wet shoes of passengers/driver in the rain;
  • leaking (even slightly) stove or its lines.

Incorrect glass blowing

This phenomenon usually occurs due to problems with internal ventilation. The glass does not sweat when the ventilation of air masses is properly turned on. The exception is the rear window at a temperature of -15°C. Typically, clogged vents or a recirculation valve are to blame. In addition, if the car is old, then it is possible that the ventilation tubes have simply become leaky and holes have formed in them. Also remember that to blow windows from fogging, you need to take air from outside , that is, turn off the internal air recirculation.

When starting to move, direct the entire air flow first to the windshield , then to the front side windows, and then to the rear windows. The ventilation and heating mode is adjusted not in service, but while driving, depending on the state of the cabin and external factors, which change every few minutes. First, you need to pick up the instructions for the car and read the “Heating and Ventilation” section.

Quite often it happens that the driver does not even suspect that the recirculation valve is broken, but continues to drive, and wonders why the air in the cabin becomes heavy too quickly, or a damp smell appears (in such a situation, it helps either to fix the breakdown or temporarily remove the cabin filter, unless, of course, it was recently changed, but the smell is still there).

Alcohol fumes

The windows in the car also fog up from the fumes of the passengers. This interesting physical phenomenon, why glasses sweat, is based on the fact that ethyl alcohol is able to heat and attract water vapor. Because of this, a situation arises when the moisture present in the cabin air becomes more concentrated, and in this form settles even more densely on the inner surface of the car windows precisely when you drink.

Heater failure

In this case, we mean leakage or complete failure of the stove. In the first case, moisture from it can get onto the mat, forming additional moisture in the cabin. In the second, a complete breakdown leads to the fact that the air and liquid will not heat up, so the air in the cabin will not dry out, which means fogging will continue.

Duct system

There are also cheap folk ways to combat “fog” on glass. Ten parts of alcohol are added to one part of glycerin and applied to the glass. The old-fashioned method has a significant disadvantage. This composition leaves a greasy layer on the surface. At night, streaks greatly impair visibility and glare appears.

Some even wipe glass with tobacco.

There is also a special film that is glued on, just like when tinting a car. It is similar to the films that are used to cover the visors of motorcycle or racing helmets. But it is advisable to install it in a specialized service, otherwise bubbles will appear under the film, and the result will not please you.

In rainy autumn or winter, water or snow may enter the interior. During heating, the water evaporates and condenses on the glass. Therefore, removing moisture from the interior is very important. Shake off the snow from your feet before getting into the cabin. Clean the interior mats regularly.

What to do if the glass sweats

There are 10 useful recommendations that will help you deal with the situation when your car windows sweat. These include:

  1. Inside the cabin, the glass must always be clean , you cannot touch it with your hands, you must wash it using detergents, and then wipe it dry with a clean material. At temperatures below 25 degrees below zero and when traveling with passengers, it is useful to treat the glass to prevent freezing.
  2. Use a product to prevent the windows in your car from sweating, the so-called anti-foggers . It can be either popular or store-bought. Treatment with them will allow, in damp and winter seasons, to significantly reduce or completely remove (depending on humidity and temperature) fog on the inner surface of the glass.
  3. It is necessary to monitor the condition of the cabin filter and stove . Their correct functioning will allow you to quickly get rid of fogging when the car engine is already running.
  4. Follow the warm-up sequence . Blowing warm air should be directed first to the windshield, then to the side windows, and only lastly to the rear window.
  5. Set up the correct air intake . It must come from outside, since the outside air is not as humid as inside the cabin.
  6. Monitor the condition of the interior ventilation . If necessary, check and clean drainage channels.
  7. Turn on not only the stove, but also the air conditioner (if you have one). You need to use your car air conditioner in both hot and cold weather. With its help, you can quickly get rid of fogging by turning it on to warm mode (provided the air conditioning system is working properly). It dries the air well.
  8. Dry the interior . The windows rarely sweat when cars are stored in a warm garage. When drying, it is advisable to open all doors in a warm and dry room.
  9. The climate control system must be turned off.
  10. Check the air recirculation valve.

It will also help to get rid of the problem of sweating windows in the car by periodically checking leaky places in the car, such as antenna sockets, mirror adjusters and glass seals, to prevent precipitation from getting into the interior.

Moving forward in solving the problem, car enthusiasts use many different cunning methods and techniques for eliminating glass fogging. It all starts by “opening” the window so that fresh air can enter the cabin, then the problem solves itself - someone uses various sprays, “anti-foggers”, a wide selection of which is offered on the market. But all these methods are for the most extreme cases or as a temporary solution to the problem.

The procedures listed above will allow you to partially or completely get rid of the situation when the windows in your car sweat. This depends on the set of measures taken, as well as the specific situation (humidity level in the cabin, serviceability of ventilation, stove and other listed hardware).

Source: etlib.ru

How to prevent glasses from sweating?

During the cold season, the problem with foggy windows is especially acute. This problem can be solved at the stage of purchasing a car. You should choose a model with a heated windshield . This step will allow you to save not only time but also nerves when warming up the car.


Turning on the heated windows

This simple trick will quickly rid the glass of condensation. It is better to turn on the air intake from the street, and not to drive it only around the cabin. It is also worth monitoring the condition of the heater of the stove, this will allow you to quickly warm up the air in the car.

There are also special anti-condensation films available for sale. You can stick them in the same way as sun protection films.

There are also chemicals that, when applied, keep the glass clean and do not sweat. It is better to choose products that are applied in the form of a spray. They are easy to apply, and before use you only need to degrease the glass.

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