Should You Use Hot or Cold Air to Defog Car Windows in Summer?

1 Answers
DiKylie
07/30/25 9:34am
Both cold and hot air are equally effective in defogging, but using cold air is more comfortable in summer while hot air is preferable in winter. Here's an introduction to the car air conditioning system: 1. Overview: The car air conditioning system is a device that cools, heats, ventilates, and purifies the air inside the vehicle. It provides a comfortable environment for passengers, reduces driver fatigue, and enhances driving safety. 2. Classification by Drive Type: Systems are divided into independent (powered by a dedicated engine to drive the compressor, offering large cooling capacity and stable operation but with higher costs, larger size and weight, mostly used in large and medium-sized buses) and non-independent (the air conditioning compressor is driven by the car engine, with cooling performance significantly affected by the engine's operation, resulting in poorer stability, commonly used in small buses and cars).
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