What Causes Frost Inside the Car?

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Frost inside the car is caused by water vapor produced by human respiration. In winter, when the outdoor temperature is relatively low, parking the car outside for a while can lead to frost forming on the interior glass, which is normal. If there is frost on the inside of the windshield, it is recommended to use a towel soaked in warm water to wipe it off. If you must park outdoors in winter, it is advisable to cover the front windshield with a blanket at night to effectively prevent frost formation. Low outdoor temperatures in winter can significantly impact the battery's lifespan if the car is parked outside overnight. Many cars experience difficulty starting the engine the next morning after being parked outdoors overnight in winter. It is recommended to check the battery's voltage and internal resistance before winter arrives. If the voltage and internal resistance do not meet the specified values, it is advisable to replace the battery.