Should You Use Cold or Hot Air to Defog the Car Interior?

[SanIan]

Use cold air to defog the car interior. Here is an introduction to car fogging and defogging: Reason for using cold air: When fog forms on the front windshield of the car, you can use cold air to defog it. This is because the fog inside the car is caused by hot air inside the vehicle meeting the low temperature of the front windshield, forming water vapor that adheres to the windshield. At this point, simply turning on the car's cold air can eliminate the fog. This cold air can be directly applied using the external circulation to blow on the front windshield. If the effect is not satisfactory, you can also use the air conditioning's cooling mode to blow on the front windshield, which will quickly eliminate the condensation of hot and cold air on the windshield. Detailed process for car defogging: If you want to completely eliminate fog inside the car, you should choose to turn on the air conditioning and use hot air to blow on the windshield. Similarly, start with the external circulation, select the hot air mode and the front windshield outlet, wait for about 5 minutes, and then switch to internal circulation or simply turn it off. Of course, if the air conditioning has a heating function, the defogging effect will be faster and better.