How to Defog Windows When Driving in Winter?

[DeKeegan]

Methods to defog windows when driving in winter include: 1. Opening windows to reduce the temperature difference between inside and outside the car; 2. Using the heating and air conditioning system; 3. Applying professional defogging sprays. Spray the anti-fog spray on the glass and then wipe it off, which not only removes fog but also stains and dirt. The defogging spray also forms a protective film on the glass, effectively preventing fog formation. The reasons for fogging inside the car are: 1. When the window temperature is below the dew point under certain humidity conditions, condensation forms on the window surface; 2. A temperature difference on both sides of the window causes the saturated vapor pressure on the cooler surface to be lower than the surrounding environment's vapor pressure; 3. Moisture gathers on the glass surface and forms tiny water droplets, leading to fogging.