Small car knowledge: How to prevent car glass fogging?

We often encounter fog, we will use the cold wind to remove the fog, the cold air will blow to the glass and the fog will dissipate quickly. The effect is very quick and direct. This is because cold air blows onto the glass and forms a “cold film” on the surface of the glass, preventing carbon dioxide from condensing on the glass and acting as a defogging effect. The only downside is that people in the car may feel very cold. Imagine what it feels like to be cold in the cold winter.

Blowing the glass with hot air can also blow out the fog, but since the temperature of the water just starts is very low, it takes a period of time for the air conditioning to blow out the hot air, so the time is longer than blowing with cold wind. In addition, when the air blows, the fog inside the car becomes larger. This is because the temperature difference between the inside and the outside is greater. After the hot air blows the moisture in the car, the mist disappears.

If the rear windshield is misty, you can use the rear windshield heating function. The position of the key switch is usually found in the air-conditioning control area and is easy to find. The defogging effect of the rear windshield heating is very direct, generally after the defogging switch is turned on, the fog on the rear windshield glass can be dispersed in about 3 minutes.

Demisting agent can be bought in the city or on the Internet, the price is from ten to tens of dollars, spray the defogging agent on the inner surface of the glass and wipe it clean, this can not only clean the glass, but also Will form a thin layer of transparent protective film on the glass, to prevent the condensation of water vapor on the glass to form a layer of fog, anti-fogging agent spray once to prevent fog for about ten days.

In addition to buying off-the-shelf aerosol remover, we can also use our own hands to make defogging agents. The method is very simple, that is, we can use the detergent and water to blend in. The ratio of detergent to water is about 1:10. You can pour it directly into the watering can. The effect is basically the same as the commercially available defogging agent.

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