Secure Your Car With The Super Car Insurance Plan!

Believe it or Not! Save upto* 75% on TATA AIG Car Insurance

Secure Your Car With The Super Car Insurance Plan!

Believe it or Not! Save upto* 75% on TATA AIG Car Insurance

Insure your  Brand New Car

Defogger in a Car

  • Author :
  • TATA AIG Team
  • Published on :
  • 09/05/2023

Enjoying a long drive in your car during the monsoon can be fun. But while you are enjoying the cool weather and the natural greenery on the drive, it is equally essential for you and your car to be safe. One of the issues you will face at this point is your car’s windows or windshield getting fogged due to the weather since you cannot roll the windows down.

However, this is a small roadblock you can easily tackle with the help of a defogger. Read on to learn what the defogger in a car is and the use of the defogger in the car.

What is a Defogger in a Car and How Does it Work?

A defogger in the car is a device that removes moisture or condensation from a surface, typically used to clear fog or mist from a car's windshield. This is how the defogger works in the car – it uses a combination of heat and air to evaporate moisture, allowing for improved visibility while driving.

The primary defogger in the car is typically part of the vehicle’s heating and ventilation system. It uses warm air from the car's heater to remove moisture from the inside of the windshield. The warm air is directed onto the windshield and side windows, and the moisture is then carried away by the car's ventilation system.

Conversely, the secondary defogger is an electrical system built into the car's rear window. It uses electrical resistance to heat the rear window, which helps remove moisture from the outside. This system is especially useful in cold weather when the outside temperature is lower than the inside temperature of the car, causing moisture to condense on the outside of the rear window.

The primary and secondary defoggers work together to ensure that the windshield and side windows remain clear and fog-free, providing a clear view for the driver.

How to Defog Your Car in the Rain?

These are some steps to understand the use of the defogger in your car:

Turn on the defogger: Most modern cars have a defogger system that can be turned on by pressing a button or flipping a switch. The defogger system combines heat and air to remove moisture from the windshield and side windows.

  • Turn on the air conditioning: The air conditioning system helps to remove moisture from the air inside the car. Turn it on and set it to the highest fan speed and the coolest temperature.

  • Open the windows slightly: Opening the windows slightly allows for better airflow inside the car, which helps to remove moisture.

  • Use a microfiber cloth: If the defogger in the car is not adequate, use a microfiber cloth or a squeegee to wipe away the moisture from the windshield and windows.

  • Avoid the recirculation mode: Using the recirculation mode on your car's ventilation system can cause moisture to build up inside the car, making the windows fog up even more. Instead, use the fresh air mode to allow for better airflow.

  • Avoid smoking inside the car: Smoking inside the car can release moisture into the air, which can cause the windows to fog up even more.

  • Keep the car clean: A dirty interior can trap moisture, leading to fogged-up windows. Regularly clean the car's interior to prevent this from happening.

Following these steps, you can defog car windows in the rain and ensure safe and comfortable driving. If your defogger in the car is not working properly, have it checked by a mechanic to ensure it is functioning correctly.

How to Avoid Car Windows from Fogging?

Now that you know how the defogger works in your car, you can brace yourself for those long drives in the rain without any worries. However, preventing car windows from fogging can be much easier than clearing them up later. Here are two tips you can use to avoid fogging up your windshield:

  • One of the easiest methods is to use silica balls, which are great at absorbing moisture. Simply fill a sock with silica balls and place it inside your car. The balls will absorb the moisture in the air and prevent your windows from fogging up.

  • Another method is to apply shaving foam to your windshield. Spread the foam evenly across the glass and let it sit for a few minutes. Then, wipe away the residual foam with a clean cloth. The foam leaves a protective layer on the windshield, which prevents moisture from collecting on the glass surface.

Following these simple tips, you can keep your car windows fog-free and ensure better driving visibility.

Why Do You Need Car Insurance?

While using the defogger in your car can help you drive safely, you always need an added layer of protection for your car. Hence, getting adequate car insurance coverage for your four-wheeler is essential.

As you may be aware, having at least a third-party car insurance policy in India is mandatory so that third-party damages to other vehicles, people and property caused by your insured car can be covered by your car insurance policy. However, having a comprehensive four-wheeler insurance plan can be much more effective as it includes third-party coverage and own damage cover for your car.

Four-wheeler insurance makes it possible to secure your car against various damages. When driving in the monsoon, damages to your car due to landslides or storms can be covered by your Tata AIG car insurance policy. Tata AIG lets you compare car insurance premium quotes in a few easy steps to get a suitable car insurance policy with sufficient coverage and reasonable premiums. This enables you to select a policy that meets your needs and budget.


Having a defogger in a car is important for safe and comfortable driving. Fogged-up windows can block visibility, making it difficult to see the road and other vehicles, pedestrians, or obstacles. In low-light areas or poor weather conditions, this can lead to an accident. While you should undoubtedly secure yourself and your car with a car insurance policy, using a defogger can help prevent any mishaps and damages to your car.

Share This Article
Facebook Feeds
Recent Tweets
Share This Article
Facebook Feeds
Recent Tweets

Disclaimer / TnC

Your policy is subjected to terms and conditions & inclusions and exclusions mentioned in your policy wording. Please go through the documents carefully.

Related Articles

Tata AIG Also Offers Insurance for the below products

Travel Insurance

Two Wheeler Insurance

Health Insurance

Car Insurance