What are the methods for defogging while driving in winter?

[DiHazel]

Methods for defogging while driving in winter: 1. Reduce the temperature difference between the inside and outside of the car, using cold air to defog; 2. Lower humidity, using warm air to dry and defog; 3. Open windows for air convection; 4. Use professional defogging spray: Before using the anti-fog spray, first clean the inside of the windshield, then spray an appropriate amount of the anti-fog spray, wait for it to solidify, and wipe it clean with a clean towel. Many cars now come with a front defogging button, which uses the compressor to produce cold air and blows it onto the fogged windshield, adjusting the temperature inside the car to be similar to that outside. The advantage of this method is that it can quickly remove window fog, suitable for sudden fogging. However, its drawback is also obvious—the sudden temperature drop may cause the car glass to crack due to thermal expansion and contraction.