Driving for a long time to open the internal circulation, what effect does it have on the body?

It's so cold, even if you don't turn on the heating, you must have closed the window. A bad place, staying in it for a long time will not only make you feel chest tightness and shortness of breath, but also make your brain groggy.

It is said that cars have internal and external circulation. How come... It is estimated that some car owners are not so clear about the use of internal and external circulation.

How to use internal and external circulation? When is it inside and when is it outside?

You know, the so-called internal circulation means that the outside air is not allowed to enter the car, and only the air inside the car circulates by itself. This function is mostly used in summer. You can save fuel when you turn on the air conditioner.

When you don't turn on the inner circulation, the car defaults to the outer circulation, and the air inside the car will circulate with the outside air.

So, when do you start the internal circulation?

For example, there is fog outside, or when the tail gas of large trucks is particularly heavy. Moreover, the air conditioning effect is not very good. When it is cold and hot, the internal circulation should be opened at these times.

Is there anything to pay attention to when opening the internal and external circulation? There must be this. The first thing to remind is the riders who start a new car.

It is best to start the internal circulation less in a new car, because the interior smells heavy and there are many harmful substances in it.

Ventilation is very important.

After buying a car, the most important thing is to open the window often for air, so that the odor inside can be eliminated as soon as possible. Also, wash the car air conditioner often in the first few months, and don't think about using perfume or air freshener to remove odor.

Don't use it too long when the internal circulation is on. After a long time, the amount of oxygen in the car will decrease, which will easily cause the driver to feel sleepy. Use the external circulation at intervals, or open a window with a small slit to breathe.

Especially in a relatively sealed environment, don't turn on the air conditioner at idle speed. Why?

Idle speed will make the engine oil burn insufficiently and produce a lot of carbon monoxide. No matter whether the internal circulation or the external circulation is turned on, it will slowly penetrate into the car, causing poisoning, so don't idle the air conditioner in a garage for a long time.

According to the current weather conditions, fog will basically be encountered. Don't just sit in the car and do nothing in the face of traffic jams. Remember to set the warm air to the self-circulation mode.

Which mode to turn on should be adjusted in time according to the air outside the car.