What is the best way to defog cars in winter?

1, warm air demisting: it's cold in winter and warm air is on in the car. Adjust the wind direction to the position where the glass is blocked before blowing. If the fog is heavy, adjust the wind and quickly remove the fog! It also has its shortcomings. It is best not to remove it with fog. If hot air is turned on while driving, the fog may not be removed temporarily, but it will become more and more serious, and the front windshield will become hazy and dangerous! So you'd better start the good car and start blowing the front windshield, so it won't fog.

2. Special defogging agent: There are many defogging products on the market, ranging from ten yuan to dozens of yuan. It is relatively simple to use. Spray it directly on the windshield and wipe it with a dry towel. In this way, a thin transparent protective film is formed on the glass. Prevent water vapor from condensing into fog on cold glass. The defogging effect can last for about a week or two. Self-made defogging agent: spray it on the glass with detergent according to the ratio of 1:6, and the effect is similar to that of defogging agent, that is, it is almost permanent.

3. Window opening and defogging: Window opening and convection will reduce the temperature inside the car to the same as that outside the car, and the fog will disappear. This defogging method has many restrictions and is suitable for use under the condition that the temperature is not too low. If it is rainy and the temperature is extremely low, it is not recommended.