What are the methods to remove fog inside the car?

[VonSkylar]

The methods to remove fog inside the car are: 1. Open windows for air convection. If the fog inside the car is not heavy, you can slightly open both side windows to create air convection between the inside and outside of the car, reducing the temperature difference and gradually eliminating the fog; 2. Use defogging spray. Spray the defogging agent on the inner surface of the car windows and wipe it clean. This not only removes dirt from the glass but also forms a protective film to prevent the formation of fog caused by condensation of moisture on the glass; 3. Use the air conditioning system. There are air vents under the front windshield of the car. Simply adjust the air conditioning to the appropriate setting to use the air blown by the air conditioning to remove fog. Using warm air to blow the glass is more effective than using cold air. Initially, the fog inside the car may become heavier due to the increased temperature difference between the inside and outside of the car, but once the warm air dries the moisture inside the car, the fog will disappear.

[DelAlejandro]

As an experienced driver who has been behind the wheel for years, I have a complete set of methods for dealing with window fogging. After starting the car, I immediately turn on the air conditioning, switch to defrost mode, and direct cold air towards the windshield to quickly evaporate moisture. If it's not too cold outside, I like to open the windows for a few seconds to allow air exchange between the inside and outside, reducing the temperature difference. For long-term prevention, I use anti-fog spray, which forms a protective film on the glass to prevent fogging. Remember, don’t rely solely on the warm air from the AC—it’s less effective than cold air in humid and cold weather because cold air dehumidifies better. During daily driving, I also make sure to keep the interior dry and avoid leaving any water stains, a method that saves time and enhances safety.

[Dorothy]

Safe driving is my top priority. Once the windows fog up and obstruct my vision, I take immediate action. First, I turn on the fan and activate the air conditioning defogging function, prioritizing cold air to blow on the windshield. At the same time, I reduce my speed and avoid sudden braking to prevent accidents. If it's winter with a significant temperature difference between inside and outside, I slightly open the window to allow air circulation and reduce fog buildup. In emergencies, such as during rain or snowy conditions, I pull over to handle the situation before continuing. Over time, I've developed the habit of regularly checking the air conditioning filter to ensure effective dehumidification. Driving safety is not something to take lightly—even small issues like fogging can lead to major accidents—so quick response is key.

[VanMalachi]

The simplest and most effective way to defog your car is by using the air conditioning. After turning on the AC, press the defog button, set the fan to maximum, and blow cold air to quickly remove moisture. The principle is that cold air lowers the glass temperature, reducing water vapor condensation. In winter, use cold air for quick defogging first, then switch to warm air to maintain temperature and prevent fogging from returning. Additionally, turning on the external circulation mode to draw in dry outside air works better than internal circulation. You can also apply anti-fog films or sprays to enhance the effect. These methods are low-cost, convenient, and suitable for all weather conditions.