Windshield problem consultation

First, the most common way: turn on the air conditioner to defog Advantages: immediate effect, without affecting driving safety Disadvantages: increase energy consumption and engine burden Most people have only one way to deal with the fogging of the front windshield: turn on the air conditioner and blow it at the glass. It is not a long-term solution to turn on the air conditioner in cold weather and catch cold yourself. The principle of window fogging is "internal heat and external cold". The temperature difference between inside and outside the car is