Whether to use internal circulation or external circulation for defogging in rainy days depends on whether to use warm air or cold air to remove fog. If refrigeration and defogging are used in summer, the owner can adjust the air circulation mode to internal circulation to reduce air humidity. In winter, if the warm air is used to remove fogging, the owner can first adjust the air circulation mode to external circulation to reduce the temperature difference between the inside and outside of the car, wait for a few minutes, and then switch to the internal circulation mode. However, if you encounter special situations such as traffic jams and large dust, it is recommended to use the internal circulation mode.
The correct way to drive on a rainy day to defog
In summer, the refrigeration and defogging method is adopted
1. The owner can press the AC switch button first, then open the front windshield defogging button, and adjust the temperature to the lowest, and then adjust the air volume, and the fog on the front windshield can be eliminated after a while
2. If you find that there is fog on the rear windshield and exterior mirror, when the front windshield is defogged, open the rear windshield heating button together, which can also eliminate the fog on the glass.
In winter, the warm air defogging method is adopted
If the car has just started, the air conditioner will not be started for the time being, wait for the engine to preheat for a few minutes, after the water temperature rises, start heating, adjust the air volume to the maximum, and then open the front window defogging button, and the fog will disappear in a few minutes. This method is also suitable for fogging the outside of the glass in the summer.
Note: If the owner of the car encounters fogging of the glass on a rainy day, but really does not remember how to deal with it, he should also pull over as much as possible according to the situation.
Car glass does not fog up
1. Spray anti-fogging agent
When using the defogger, car owners only need to spray it evenly on the glass surface and then wipe it clean with a dry towel. After wiping, a certain protective film will be left on the surface of the glass, changing the surface tension of water molecules, so that the fog beads will condense into large water droplets, so as not to block the line of sight. Other glass in the car can also be used, especially in exterior mirrors. The first mist remover on the market ranges from tens of yuan to hundreds of yuan, and the ingredients are not much different, and the only difference may be the durability.
2. Homemade defogger detergent for dish soap
If you forget to buy a defogger and want to use it temporarily, then mixing dish soap with water is a good method, according to the ratio of 1:6, put the dish soap and water in a bottle, and spray it before traveling, the effect is comparable to the defogger bought outside, but the durability is slightly worse. Some car owners asked if they could replace dish soap with soapy water, hand sanitizer, laundry detergent and other itemsYes, yes, but none of them are as effective as dish soap.