What are some tips to prevent car windows from fogging up?

1 Answers
StJuliet
07/30/25 10:45am
Tips to prevent window fogging: 1. Apply cleaning products: Toothpaste can prevent car windows from fogging up. Apply toothpaste to the windows before driving and wipe with a cotton cloth—this effectively prevents fogging. Besides toothpaste and anti-fog agents, using diluted dish soap or soapy water to wipe the windows also helps. 2. Turn on the AC: Whether using cold or warm air, turning on the AC speeds up defogging because the air conditioning compressor has a dehumidifying function. 3. Crack the windows: After defogging, leave a small gap in the windows to allow air circulation inside the car, balancing the interior and exterior temperatures. 4. Use the external air circulation: The principle is the same as opening the windows—both methods draw outside air into the cabin.
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