With the onset of cold weather, many motorists have to deal with such a phenomenon as fogging of windows in the car... This phenomenon is not only unpleasant in terms of comfort, but also poses a great danger to drivers in the form of limited visibility. In addition, drivers constantly have to be distracted in order to wipe the fogged-up windows, which is strictly forbidden to do while driving.
Increased humidity in the cabin, which is the main reason for which fogging of glasses, is also fraught with the occurrence of corrosion and the appearance of unpleasant odors due to the formation of mold, fungi and harmful bacteria, for which a humid environment is an ideal breeding ground.
Today I will try to figure out and understand why glass sweats and how to avoid fogging up car windows.
First of all, I propose to talk about the reason why the windows in the car sweat.
The main reason why the windows fog up is condensation, in other words, moisture that settles in the form of the smallest particles of water in the coldest parts of the cabin, which, as you know, are car windows. Moisture is formed as a result of hot breathing of a person, therefore, the more passengers there are in the cabin, the higher the humidity in it, and the stronger the fogging of the windows.
In addition to the exhalation of a person, sources of moisture in the cabin can be damp weather outside the window, as well as wet shoes or car mats, which absorb a large amount of moisture from the shoes. The source of moisture in a car is often a car stove, which operates regularly during the cold season. Moisture ingress occurs through the oven hole, designed for air intake, it is located in the upper part of the hood, near the plastic protection. Snow that accumulates there during the melting from a warm engine increases the level of humidity in the car's interior.
About, why do glasses sweat you already know, now I propose to talk about how to eliminate fogging of windows, that is, about ways to combat fogging of windows in a car.
To get rid of the fogging of the windows, you need to regularly take care of the interior and adhere to simple rules, which we will now talk about.
The salon must be kept in constant cleanliness, this is especially important in rainy weather or in winter during a thaw. You should regularly ventilate the interior and make sure that the carpets are not wet, and dry them regularly. Before getting into the car, tap or sweep your shoes, and in rainy times, try to keep your shoes dry (avoid getting wet, or change). Alternatively, you can choose which is easier to care for, and if moisture appears, it can be carefully poured out. The shape of the rubber mats does not allow moisture to go beyond the sides, so the moisture from the shoes does not go anywhere.
If you notice that snow has accumulated on the hood grille, do not be too lazy to shake it off, otherwise the snow in the form of moisture will fall into the passenger compartment when the stove is turned on. Dry and ventilate the cabin from time to time, to do this, turn on the air circulation in the cabin, regularly clean the car windows from ice. In winter, fill the "anti-freeze" into the windscreen washer tank, the liquid must contain alcohol, which prevents freezing.
When constantly sweat glass in the car, make it a rule to properly ventilate and warm up the car interior before driving. Warm up all the glasses first, and do not create sudden changes in temperature; if the windows in the car are frozen, warm them up gradually. Do not forget also about such important elements as: air conditioner, stove - all these elements must be in good working order and clean.
- an excellent solution to the problem of fogging the windows in the cabin, it dries the air perfectly and keeps the optimum temperature. If the car is not equipped with air conditioning, then fresh air or a stove will help to defeat the fogging of the windows, and it is better if they work in tandem. That is, with a working stove, turn on the air circulation from the street.
For proper operation of the blowing, direct the flow regulators (deflectors) to the most misted areas and move the circulation lever to the extreme left position.
Alternatively, you can consider a method that allows you to partially "overcome" the fogging of the windows. It provides a small upgrade to the luggage compartment duct by cutting small holes in the side trims of the luggage compartment. In the resulting "windows" it is necessary to install plastic grilles (y), due to which the outflow of air will significantly increase. After such a small upgrade, air ventilation in the cabin will be more efficient, after such a procedure, much less sweat glass in the car.
The next option is the use of anti-fogging agents, which prevent moisture from collecting and effectively fight against condensation. Anti-fogging agents are most often of two types:
- In the form of a special liquid that covers the glass with a transparent film that does not allow moisture to accumulate on the windows.
- In the form of a liquid that repels moisture.
- Anti-fogging mastic. They are the most effective, but at the same time the most expensive among the above. The principle of their operation is based on similar principles - the glasses are covered with this compound and prevent the glasses from fogging up and getting wet. Most importantly, one treatment is enough for several "wet" rides in wet weather.
Anti-fogging agents are applied exclusively to a dry, clean surface, but if you apply liquid to a fogged window, there will be no effect, and the money will be wasted.
In winter, it is recommended to use "Antiled" and "Non-freezing" products in the cabin, they help to fight the accumulation of moisture on the glass and provide excellent visibility. These products contain alcohol in their composition, which prevents the formation of moisture and the accumulation of dirt, allowing you to keep the glass clean. The special composition allows for a long time to forget about the fogging of glass, as well as ice on the windows, even at -25 °. Special products work for at least 72 hours after application. the liquid does not affect the transparency of the glass and is excellent at fighting moisture.
That's all for today, I hope my article will help you solve the issue. fogging of windows in the car.
Fogging on car windows can severely impair visibility while driving. And it makes no difference whether the old Moskvich is being used or the latest Infiniti model. In this case, automakers are powerless over the laws of physics. But this problem can be solved. Consider the main ways and means of combating glass fogging.
Why do the windows in the car sweat?
First of all, in order to fight the enemy, it is necessary to study its nature, because droplets of moisture on the glass do not appear on their own. And it's worth starting from the concept of air humidity. Simply put, humidity is a measure of the amount of water vapor in the air. When a liquid passes into a gaseous state, the air mass is saturated with moisture, and this continues until a certain point. Reaching the maximum concentration, water begins to precipitate in the form of condensation on the surface of objects. In this case, on glass.
But at the same time, the threshold for planting moisture can be different and depends on specific conditions. First of all - from the air temperature or the temperature of the surrounding objects. So, with an increase in air temperature, the level of its moisture absorption increases sharply, and therefore, in warm air, part of the water is always greater than in cold air. And if the temperature of the moisture-saturated air drops, part of the moisture present in it falls out in the form of condensation. At the same time, the phenomenon of constant water settling on the glass is explained by the fact that its temperature is usually lower than the temperature in the cabin. As a result, finding itself near the cooled glass, the air loses part of its temperature, which provokes the precipitation of water sediment.
Video about the reasons and methods of anti-fogging of glass in a car
Separately, mention should be made of the moisture released by a person with each exhalation. We can see the results of breathing in the cabin by bringing our face closer to the glass - fogging will immediately appear. Therefore, do not be surprised if you are carrying a large number of passengers.
Cause of condensation when it rains
The peculiarity of the formation of condensation on the glass during rain or sleet is explained by two factors: increased air humidity in the cabin and a drop in temperature “overboard”. In case of precipitation, water inevitably gets into the cabin with wet shoes, outerwear, raincoats and umbrellas. And moisture-laden air also penetrates through the opening doors, trunk lid and air vents. At the same time, glass serves as a boundary between the warm microclimate of the cabin, where the air contains a lot of moisture evaporation, and the external environment, which is cooled by natural precipitation. As a result, the windows, windshield and rear windows are very quickly covered with water droplets.
Does it make sense to wipe the glass
The first thought when fogging up a window is to wipe it down. Various fabric rags, towels, napkins or jacket sleeves and just a palm are used. Of course, in most cases, stains and hand marks remain from such manipulations. And most importantly, if the conditions inside the cabin have not changed, moisture will appear in a minute or two. So it is necessary to wipe the glass, but only in combination with other measures. Microfiber cloths are best suited for the quick removal of condensate, which do not leave lint, streaks and perfectly absorb moisture. Paper tea towels are also useful for this purpose.
What to do if condensation appears over and over again
To quickly get rid of fogging on glass, at least one of the following steps is required:
- ventilate the car;
- increase the temperature of the cabin;
When you are driving in the rain, and a continuous veil forms on the glass, just slightly open (about 1 cm) the front and rear windows on the driver's side. This will allow some of the moist air to escape.
If you have no passengers in the gallery, then it is better to make a combination of windows "front left + rear right". For such cases, external deflectors will be very appropriate, which allow you to drive with the windows ajar and not be afraid of rain or snow falling into the cabin. It is also advisable to ventilate the car when you come to the parking lot for it.
In addition, the importance of correct air intake by the ventilation system should be noted. It is necessary at high humidity to turn on the fence "from the outside", instead of "driving" the same humid air through the cabin. It is necessary to monitor the cleanliness (if any), change it every 10-15 thousand km, since the ventilation inputs can be clogged with dust, dirt, leaves, snow, and a clogged cabin filter will additionally impede the flow of fresh air. As a last resort, experienced drivers even advise removing the filter from the system altogether in order to increase the air flow and get rid of the problem of constant fogging of the windows.
The most convenient and effective way that is available to owners of absolutely all cars, regardless of the year of manufacture, is to heat the air with a stove. Simply raise the temperature in the passenger compartment and the condensation water is immediately absorbed into the air without leaving any trace.
For the fastest effect, the ventilation nozzles must be directed towards the misted glass and side windows. There will also be no problems with the rear window if it is equipped with a heater. Just turn on the heating of the glass, and after 2-3 minutes the condensation will disappear. In the absence of heating, it is better to remove moisture with a napkin, without waiting for the interior to warm up to the required temperature and the water in the back dries itself.
Least of all problems with high humidity in the cabin arise from the owners of equipped cars. If turning on the stove warms up the air, then the operation of the air conditioner will also effectively remove excess water from it, which will eliminate the root cause of the fogging problem. Therefore, always keep an eye on the condition of the air conditioner, be it summer or cold season.
Anti-fogging application
Many drivers actively use chemical aerosol agents - the so-called anti-fogging agents - to combat condensation. At the moment, such products exist in the product line of many brands and may differ in quite a budget price.
At the same time, eminent companies are ready to offer customers advanced nanotechnologies that interact with surfaces at the molecular level and successfully prevent fogging for several months.
It should be understood that there are no means that could "wean" water to precipitate at high humidity. Instead, a protective coating applied to dry glass is hydrophobic, preventing moisture from settling on the surface in the form of droplets. Water simply flows down evenly or slides off the glass, without interfering with the driver's visibility. At the same time, the humidity does not decrease, and therefore no one has canceled the need to dry the air and carpets in the cabin.
- news
- Workshop
Limousine for the president: more details revealed
The website of the Federal Patent Service continues to be the only open source of information about the "car for the president." First, NAMI patented industrial models of two cars - a limousine and a crossover, which are part of the "Cortege" project. Then the namishniki registered an industrial design called "Car dashboard" (most likely, namely ...
Self-driving taxis to appear in Singapore
During the tests, six modified Audi Q5s, capable of driving in autonomous mode, will be released on the roads of Singapore. Last year, such cars smoothly covered the path from San Francisco to New York, according to Bloomberg. In Singapore, the drones will move along three specially prepared routes equipped with the necessary infrastructure. The length of each route will be 6.4 ...
AvtoVAZ has nominated its own candidate to the State Duma
The official statement of AvtoVAZ says that V. Derzhak has worked for more than 27 years at the enterprise and has gone through all stages of career development - from an ordinary worker to a foreman. The initiative to nominate a representative of the workforce of AvtoVAZ to the State Duma belongs to the collective of the enterprise and was announced on June 5 during the celebration of the city of Togliatti. Initiative ...
Video of the day: electric car gains 100 km / h in 1.5 seconds
An electric car called the Grimsel was able to accelerate from standstill to 100 km / h in 1.513 seconds. The achievement was recorded on the runway of the air base in Dubendorf. The Grimsel is an experimental vehicle developed by students from the Swiss Higher Technical School of Zurich and the University of Applied Sciences Lucerne. The car is made to participate ...
Mitsubishi will reveal a touring SUV soon
The abbreviation GT-PHEV stands for Ground Tourer, a travel vehicle. At the same time, the concept crossover should proclaim "Mitsubishi's new design concept - Dynamic Shield." The Mitsubishi GT-PHEV powertrain is a hybrid unit consisting of three electric motors (one on the front axle, two on the rear) to ...
Citroen is preparing a carpet-flying suspension
Citroen's Advanced Comfort Lab, based on the C4 Cactus production crossover, is by far the most visible innovation in the chubby chairs, which look more like home furniture than car seats. The secret of the chairs is in the padding of several layers of viscoelastic polyurethane foam, which is usually used by manufacturers ...
Toyota factories are down againToyota factories are down again
Recall that on February 8, the Toyota Motor carmaker stopped production at its Japanese factories for a week: from February 1 to February 5, employees were first prohibited from working overtime, and then it came to a complete halt. Then the reason was a shortage of rolled steel: on January 8, an explosion occurred at one of the supplying plants owned by Aichi Steel, ...
Datsun cars became more expensive at once by 30 thousand rubles
Immediately, we note that the rise in price did not affect the cars assembled last year. Last year's on-DO sedan and mi-DO hatchback in basic versions are still offered for 406 and 462 thousand rubles, respectively. As for cars produced in 2016, now on-DO cannot be bought cheaper than for 436 thousand rubles, and for mi-DO dealers are now asking for 492 thousand ...
Professor of Moscow State University will star in the new Pirelli calendar
Hollywood stars Kate Winslet, Uma Thurman, Penelope Cruz, Helen Miren, Lea Seydoux, Robin Wright took part in the filming of the cult calendar, and Moscow State University professor Anastasia Ignatova was a specially invited guest, according to Mashable. The shooting of the calendar takes place in Berlin, London, Los Angeles and the French town of Le Touquet. How...
There will be more flashing lights in Russia again
Let us recall the background. In 2012, Vladimir Putin sharply reduced the number of cars with special signals to 568, while earlier on the roads of the country there were 965 "flashing lights" without color schemes on board. Then the list was repeatedly supplemented: the FSB gave 207 "flashing lights" instead of 197, the Foreign Ministry - four instead of three, and this spring ...
Since the time of Cagnoton's first steam propulsion device, invented in 1769, the automobile industry has made great strides. The variety of brands and models currently boggles the imagination. The technical equipment and design will satisfy the needs of any customer. Buyability of a particular brand, the most accurate ...
The best gifts for the car ownerThe best gifts for the car owner
A car enthusiast is a person who spends a lot of time behind the wheel of his car. Indeed, in order to provide the necessary comfort in the car, as well as traffic safety, you need to make a lot of efforts when caring for a car. If you want to please your friend ...
HOW to choose and buy a car, Buying and selling.
How to choose and buy a car The choice of cars, both new and used, on the market is huge. And not to get lost in this abundance will help common sense and a practical approach to choosing a car. Do not give in to the first desire to buy the car you like, carefully study everything ...
Which sedan to choose: Almera, Polo Sedan or Solaris
In their myths, the ancient Greeks talked about a creature with the head of a lion, the body of a goat and a snake instead of a tail. “The winged Chimera was born as a tiny creature. At the same time, she sparkled with the beauty of Argus and terrified the Satyr with the ugliness. It was a monster of monsters. " The word ...
2018-2019: rating of CASCO insurance companiesEach car owner seeks to protect himself from emergencies associated with road accidents or other damage to his vehicle. One of the options is the conclusion of a CASCO agreement. However, in an environment where there are dozens of firms on the insurance market that provide services for ...
What car should a family man choose
A family car should be safe, roomy and comfortable. In addition, family cars should be easy to use. Varieties of family cars As a rule, most people associate the concept of "family car" with a 6-7-seat model. Station wagon. This model has 5 doors and 3 ...
Which cars are the safest
When deciding to purchase a car, first of all, many buyers pay attention to the operational and technical properties of the car, its design and other attributes. However, not all of them think about the safety of the future car. Of course, this is sad, because often ...
How to exchange an old car for a new one In March 2010, a program for the recycling of old cars started in our country, according to which any car owner can change his old car for a new one, having received from the state, represented by the Ministry of Industry and Trade, financial assistance in the amount of 50 ...
HOW to choose your first car, choose the first car.
How to choose your first car Buying a car is a big event for the future owner. But usually the purchase is preceded by at least a couple of months of choosing a car. Now the car market is filled with many brands in which it is quite difficult for an ordinary consumer to navigate. ...
- Discussion
- In contact with
One of the problems that motorists often face is glass fogging. What are the reasons for the fogging of windows in a car and what should be done to restore visibility?
High air humidity
When the car is parked for a long time, the air humidity in the passenger compartment is equalized as on the street. A man, getting into a car, fills the interior with moist air from his breath. Water droplets, settling on cold glass, create a thin film that restricts the view.
The problem of fogging up car windows is aggravated by rain. At the same time, the glass often sweats so that it becomes impossible to operate the car due to the complete lack of visibility. The problem is solved without the use of technical means. To restore visibility, turn on the blowing of the car heater on the glass. Visibility will be restored in a minute.
For cars equipped with air conditioning, it is better to turn it on. A minute is enough to eliminate fogging, it copes better than a “stove”. At the same time, move the blower switch to the "windshield only" position.
In winter, fogging of the windows of the car occurs when the engine is started, when the temperature in the cabin and outside is different. You should turn on the blowing on the windshield, and as the interior warms up, switch to other positions.
If the reason for fogging is only high humidity, it is possible use of special formulations to prevent fogging car windows. Made in spray form, they are easy to apply and provide long lasting effect. The cost of such compositions: from 200 rubles.
Wet rugs under your feet
Despite the fact that damp rugs cause high humidity (which could be attributed to the first point), such situations should be considered separately.
Firstly, you need to find the reason for the ingress of moisture on the rugs - perhaps water gets into the cabin due to worn door seals or a leaking windshield seal. If so, then they should be replaced.
Another reason is the leakage of the "stove" radiator, which on most cars is located under the dashboard. In this case, the glasses do not sweat in the conventional sense of the word, but are covered with a greasy film consisting of droplets of coolant. This film can only be removed with a glass cleaner. Wipe it down with a dry cloth aggravates the situation.
As a rule, upon noticing a slightly misted glass, the driver directs a stream of warm air onto it. In the event of a coolant leak, this will rapidly increase fogging. This is one of the diagnostic signs of a malfunction. In addition, if the radiator leaks under the mat at the driver's feet, it is often possible to detect antifreeze smudges. The repair consists in replacing the radiator, checking the tightness of the pipe connections.
Secondly, the car interior should be completely ventilated at least once every six months... To do this, you need to open all the doors, the trunk and leave the car to dry at a warm air temperature for a day. This way you can dry the entire interior and remove excess moisture.
The cabin filter is to blame
A clogged pollen filter is often the cause of fogging. Over the summer, a lot of road dust and leaves get into it, which disrupts the air conductivity through it. During the first autumn rains, such a filter damp and completely ceases to fulfill its function. Wet and poorly cleaned air begins to flow into the passenger compartment.
Misted windows bring a lot of inconvenience to car owners. The visibility of the road is impaired and the risk of an accident increases. Most often, people face similar problems in rainy weather and in winter. To relieve drivers of headaches, many manufacturers began to produce cars with a heated glass function. However, most of the vehicle owners are still forced to solve problems on their own.
Clouded glass, on which condensation accumulates, is far from always the result of a change in the weather or the fact that a drunken passenger is in the cabin. There are many other factors that can be eliminated to improve visibility.
Reasons for fogging car windows
Of course, the most obvious reason is condensation. When the air temperature is very different from the temperature inside the car, water droplets are formed and deposited on the surface of the glass. They sweat. Also, the deterioration of visibility can be affected by:
- Increase of humidity in the car interior. When in rainy weather, people get into the car in wet clothes and turn on the stove, this leads to rapid evaporation of moisture, which settles on the surface of the windshield and side windows.
- Clogged cabin filter. If this device stops absorbing moisture and dust in the required volume, then condensation will also form on the glasses.
- Defective clean air valve. If the dampers of the sensor stop functioning in normal mode, then the circulation of air flows in the passenger compartment of the car is disturbed.
Also, the problem may lie in the system, which is responsible for a kind of drainage in the car. If the holes for removing excess water are clogged with foliage and dirt, then this often provokes perspiration on the glass.
As a rule, solving technical problems in a car helps to get rid of fogging of the car windows. But, sometimes the car owner simply has no time to engage in diagnostics or the reasons for the appearance of perspiration are associated with other factors. In this case, you need to follow the recommendations that will help solve the problem.
- Sit in the car only with clean shoes so as not to introduce excess dampness into the passenger compartment. Anyone who has ever sat down in a car in winter or during a heavy rain is well aware that it is simply impossible to completely clean boots in such a situation. The only way is to wear galoshes or shoe covers on the street. Agree, few people want to become such a "mod" and even more so to offer such solutions to car passengers.
- Use rubber mats. They collect all the water from the boots, which can be easily poured onto the street. These funds more protect the bottom of the car from corrosion. However, while the car enthusiast waits for the snow on the boot tread to melt and drain onto the mat, moisture will evaporate and settle on the windows. Therefore, this also does not help to fully solve the problem.
- Setting up the stove and ventilation. When it is humid outside, many advise you to simply switch the standard car fan to the air circulation mode, which, as it is believed, after numerous runs through the stove, will become much drier. However, in practice, such manipulations with recirculation of air flows lead to even more fogging.
- Use of salt. Some craftsmen, having read that salt absorbs moisture well, begin to diligently rub glass with it, especially in winter. Of course, this component dissolves snow well and absorbs liquid, but do not forget about the abrasive properties of salt. If you start rubbing the glass with it, then small scratches will remain on them, which will only lead to their greater pollution and wear.
There is no point in wasting time on the methods described above. Better to get rid of excess moisture build-up using more effective methods.
How to get rid of perspiration
First of all, it is worth replacing the cabin filter. Drivers rarely think that the service life of this element is no more than 20,000 km. Experts recommend buying new activated carbon filters. Such products perfectly clean the air and do not allow chemical vapors to enter the interior.
Other helpful tips to consider are:
- There should always be clean soft napkins in the car interior. If the windows are suddenly fogged up and there is no time to search for the root cause of perspiration, then you can clean the glass from the inside and direct a fan at them. This will help to temporarily fix the problem.
- Works with the trunk. First of all, it is worth removing all wet things from the luggage compartment and generally making it a rule not to litter it. Also, some car owners cut small openings in the side trim and cover them with plastic grilles. Such a cardinal measure allows to improve air exchange in the car interior.
- Bonnet grill. If snow or dirt accumulates on it, then you should not be lazy to clean this part before each trip.
- Warming up. Before you start driving, especially in winter, it is recommended to first warm up the vehicle interior a little. This should be done gradually so as not to create sharp temperature changes. It is best to direct the heating to all glasses and turn it on to medium mode.
Sometimes there is no time for such manipulations. In this case, some turn on the stove to the full and get not the best result. To quickly get rid of perspiration, it is recommended to use special formulations.
Specialized anti-fogging
The easiest way is to purchase a special liquid and spray it on the glass of a car. The cost of the anti-fogging agent ranges from 80 to 600 rubles, depending on the composition of the product. The cheapest drugs use glycerin. However, this liquid leaves rainbow smudges on the glass.
It is better to give preference to mastic-based anti-fogging agents. They are more expensive, but much more efficient. After covering the surface with such a product, water droplets will literally repel from it. The actions of such trains are enough for several trips (up to 72 hours).
Important! This type of fluids will only work when applied to clean, dry surfaces. Spraying an anti-fogging agent on a fogged glass will not change anything.
In winter, it is more rational to use various anti-freeze and anti-ice. They can not only be poured into glass washers, but also sprayed onto the windows from the inside of the passenger compartment. These liquids contain alcohol, which keeps surfaces clean for longer.
Some people make their own anti-fogging agents. To do this, it is enough to mix 20 parts of pharmacy alcohol and one part of glycerin. The resulting mixture is poured into a spray bottle and applied to glass.
There are other methods, using the cheapest remedies, to help you forget about perspiration.
If there is no specialized liquid nearby, then you can temporarily solve the problem with the help of:
- Shaving foam. The composition is applied in a thin layer to glass and wiped with a clean cloth.
- Lemon. For this method, you need to cut the fruit and rub it with glass pulp. After that, the surfaces are wiped with a soft cloth.
- Salt. If you use this component correctly, you can achieve a good effect. It is enough to fill a few paper bags with salt and place them next to the glasses.
- Newspapers. This "grandfather" tool helps to temporarily clean the glass and prevent the formation of condensation. It is enough just to wipe the windows with thin paper.
- Soaps. With it, you need to draw small squares at the four corners of the glass. After that, the entire surface is wiped with a dry cloth. Thus, a thin protective film is formed on the glass, and the visibility does not deteriorate.
In custody
Most of these methods allow you to get rid of the problem for a while. However, if the glass begins to sweat with enviable regularity, then it is best to carry out a complete diagnosis of the car. As a preventive measure, it will not be superfluous to periodically ventilate the car interior, dry the upholstery, clean the rugs and drain the liquid from them in a timely manner. Sometimes moisture accumulates in the soundproofing material. Therefore, it is worth finding out all the possible causes of perspiration.
Reading 5 min. Views 288 Published 9 September 2015
As soon as there is a sharp difference between day and night outdoor temperatures after summer, motorists are faced with the problem of fogging up the windshield and side windows. In addition to the usual discomfort, this situation is dangerous. The driver, due to a fogged-up window, may not fully analyze the environment on the road. In this article, we will explain why the windows in a car sweat and present methods of getting rid of fogging.
Reasons for fogging windows in the car
There are several reasons for fogging windows in a car. The main reason for this is the increased humidity in the vehicle interior. It occurs due to various factors:
- passengers in the cabin exhale, together with the air, water vapor, which condenses on metal and glass;
- in wet or snowy weather, we bring a lot of moisture into the interior of the car with shoes, which settles on the rugs;
- ingress of moisture into the passenger compartment through the stove from the melted snow near the warm engine compartment.
All of these factors increase the humidity level in the vehicle interior. While driving or after stopping and cooling the car, moisture begins to condense on the metal parts of the passenger compartment or glass, which in the cold season is the coldest part of the car interior.
Now it became clear to you why the windows in the car fog up. We can move on to describing methods of getting rid of this phenomenon.
Prevention of fogging of car windows
If we want the glass to not sweat in our car once again, it is necessary to keep the interior of our car dry and clean. This means that you need to watch out for rainy and snowy weather to keep the car mats always clean and dry. All you need to do is blow off snow and water from your shoes while getting into the car. In this case, rubber car mats will help, which are easier to clean from snow and water. You just need to knock them out and put them back in the salon. Unlike pile on rugs, rubber is quickly cleared of water and snow. It is generally enough to pour water over the sides of the rubber mats.
You also need to watch out for snow that can linger on the grille between the hood and the windshield. After the engine warms up, all the snow from the grate will melt and enter the interior ventilation system and enter the vehicle interior in the form of water vapor. Further, it will condense again on the glass of the car.
In winter, after a trip, when you leave the car overnight, open the cabin and let the air in it aerate. This will normalize the humidity level in the vehicle interior with the ambient humidity level. Timely cleaning of the outside of the glass from snow and ice will reduce the likelihood of frost on the glass of the car.
Methods for getting rid of fogging car windows
The table below provides a description of methods for de-fogging car windows.
| Method | Description |
| 1. Before driving, warm up the interior | In the morning, when you come to the parking lot or garage for your car, do not leave until you warm up the interior and the windows of the car. Ventilate the vehicle interior at the same time. Start warming up the car interior by blowing warm air over the windows. Use the interior heater to warm up. |
| 2. Turning on the car air conditioner | If in rainy weather the windows of your car interior are fogged up, turn on the car air conditioner and direct the air currents towards the windows. In this case, the air intake from the environment must be turned on. A car air conditioner will help blow all condensation off the glass in seconds. In other words, the air conditioner effectively dries the air in the vehicle interior. |
| 3. Turning on the heater with air circulation | If your car does not have an air conditioner, then the air recirculation stove will help to avoid fogging the windows in rainy weather. Turn on the lever on the air intake from the environment and the stove. As a result, condensation will disappear from the windows from heating, and excess moisture will come out of the car interior. The air in the passenger compartment is thus dehumidified. |
| 4.increase air outflow from the vehicle interior | As you know, air ducts are installed at the end of the passenger compartment to remove air from the passenger compartment, the so-called natural air circulation. Additional ventilation holes must be cut on the luggage compartment shelf. Air will escape faster from the vehicle interior. And the ventilation of the passenger compartment will begin to capture more fresh air into the passenger compartment. As a result, we get improved air circulation and reduced humidity levels in the vehicle interior. |
| 5. Using an anti-fogging aerosol | There are special anti-fogging aerosols on sale in car stores. By sprinkling a defogger on the glass, we will prevent moisture condensation on the glass. Apply the anti-fogging agent to the clean, dry inner surface of the glass. |
Means - Anti-fogging
Anti-foggers are offered in several forms:
- in the form of a special liquid that covers the glass with a transparent film, which prevents the accumulation of condensate water vapor;
- in the form of a special liquid that will repel water from the glass;
Anti-fogging mastic is the most expensive, but also the most effective. The mastic covers the glass and protects it from fogging and getting wet. One application of a mastic anti-fogging agent is enough for several rides in wet weather. There is also one rule to keep in mind. Anti-fogging will have no effect if not worn on wet glass. The glass surface must be wiped dry and free of dust before applying the anti-fogging agent.
In winter, you can also use anti-freeze or anti-ice special agent for the car interior. These funds are alcohol-based. Alcohol also prevents condensation from forming on the glass surface. In addition, you will not have ice formation on the glass from the inside at ambient temperatures down to minus 25 degrees Celsius. One application of these special products is enough for 72 hours.
