What Causes Fogging on the Passenger Side Window?
2 Answers
Due to the temperature difference between the inside and outside of the car, the windows are prone to fogging. This happens because the temperature of the window glass in contact with the outside is lower, causing the water vapor inside the car to condense on the glass, forming fog. Methods to clear window fogging: Allow the car to fully adjust to the higher outside temperature; once the moisture evaporates, fogging will naturally stop. When parked, open all doors and windows, and the issue will quickly be alleviated. Ventilate by opening windows: If you're in a hurry to drive, simply open the windows to allow air circulation. The wind will quickly remove the moisture stored in the garage, and the fog will dissipate naturally within a few minutes. Use anti-fogging products: Nowadays, there is a wide variety of car accessories available, and anti-fogging products are no exception. So, keep a bottle handy and spray it before heading out to naturally prevent fogging.
That day when I was driving my friend home, I encountered fogging on the passenger side window. Essentially, it's caused by the temperature difference between the inside and outside of the car. When the heater is on, the glass is colder than the interior, and the moisture from our breath condenses on it. The passenger side window is closer to the person, so every breath the passenger takes can cause fogging. Another scenario is when the air conditioning vents aren’t adjusted properly—if the air is blowing directly at the windshield, the side windows are more prone to fogging. Later, I found that keeping a dry cloth handy works well. Wiping the inside of the windows before driving can prevent fogging. If fogging does occur, switching to the external air circulation or slightly opening a window to let the moisture out works immediately.
