Is it OK to sleep in the car at night without opening the window?

No. Sleeping in a car without opening the windows can easily cause carbon monoxide poisoning.

This can lead to suffocation and even death.

Under closed conditions, the air in the car is circulated internally through the air conditioner, and if it is not renewed, the carbon monoxide concentration in the car will become higher and higher, and at the same time, the people in the car exhale a large amount of carbon dioxide.

As a result, the oxygen in the car is drastically reduced, which can cause nausea, coma, and even suffocation and death in a few hours.

There are two modes of air conditioning in a car, one is internal circulation.

mode, which is more economical on gasoline. The internal circulation state is to close the airflow channel inside and outside the car, there is no airflow circulation without turning on the fan, and the airflow inhaled when the fan is turned on only comes from the inside of the car, forming the airflow circulation inside the vehicle. The second is the external circulation mode, which consumes more fuel relatively speaking.

The external circulation state is to use the fan to suck the air outside the car into the car, that is to say, the air channel outside the car and the inside of the car are circulating, and the air from the fan comes from outside the car.

For a healthy person, in the sealed environment in the car for 20 minutes, the carbon oxide concentration produced by the car will seriously exceed the standard, which can make people feel suffocated, and the longer the time, the faster the concentration increases. Therefore, it is recommended to rest in the car, and the windows must be left gaps, and do not sleep for a long time.

You can't sleep in the car without opening the windows.

Because it is not recommended to sleep in the car, especially for a long time, there is a risk of hypoxic suffocation, and whether it will suffocate depends on whether there is enough oxygen in the car. Generally speaking, when the doors and windows are closed, a person sleeps in the car for one night, and the oxygen is basically enough. If there are a large number of people and there is no good ventilation, it will lead to hypoxia.

Generally speaking, it is no problem to sleep in the car after the engine is turned off, provided that it is in an open and ventilated area, and it is best to open a few windows to ensure adequate ventilation. In fact, the interior of the car is not airtight, even if you don't open the windows in an open field, there is generally no problem, of course, it is best to open the windows for ventilation.

Precautions for sleeping in the car:

1. The space in the car is closed, sleep in it without opening the window, the air is not circulated, and it is easy to lack oxygen in the car for a long time.

2. Air pollution in the car is harmful. There are formaldehyde, benzene, xylene and other toxic gases released from the interior of the car, and these pollutants are harmful to respiration, blood and cardiovascular.

3. Even if you sleep with the air conditioner on, the air can circulate, but it is easy to cause carbon monoxide poisoning. When the engine idles or spins at more than 3,000 revolutions per minute, it produces a high concentration of carbon monoxide. Drivers and passengers who rest and sleep in the car for a long time and consume excessive oxygen are very prone to carbon monoxide poisoning.

To sleep in a car, you have to open the windows, but you just need to leave a slit.

Reason: There are many harmful gases in the sealing environment in the car, the air is not circulated, it is easy to be stuffy, and it is easy to cause the danger of too strict sealing and lack of oxygen in the car after falling asleep for a long time.

Note: Try not to sleep in the car even if the air conditioner is turned on, as turning on the air conditioner for a long time will make it difficult for the air in the car to convection, and the carbon monoxide produced by the engine operation may accumulate in the car, and the carbon dioxide emitted by the breathing of the people in the car may cause poisoning to the people in the car for a long time.

It is not recommended to sleep.

If the vehicle is turned off and the doors and windows are closed, theoretically there will be no great safety hazards, because the interior of the vehicle is not completely sealed, and there will be air vents with external air circulation, which will not lead to suffocation death.

However, the amount of ventilation will not be very large, but there are some small openings, and after a long time, you may feel uncomfortable with chest tightness and lack of oxygen, so it is best to leave some gaps in the windows and not close them completely. If you have a skylight, you can open it.

If you don't turn on the air conditioner, it's okay to sleep for a short time without opening the window, and if you sleep for a long time, it's recommended to open the window. Don't sleep in the car with the air conditioner on all the time in winter, as carbon monoxide poisoning can easily occur, which is very dangerous.

It is recommended that you do not sleep in the car, if you must sleep in the car, it is recommended to set an alarm clock, do not sleep in a dense and unventilated car for a long time, which is not good for the body.

You can't sleep in the car without opening the windows. Whether it's summer or winter, always open the windows of your vehicle when sleeping in the car. If the vehicle is equipped with a sunroof, you can leave a certain amount of space in the sunroof.

It is important to ensure that fresh and empty air enters the car so that it is safe to sleep in the car.

Things to keep in mind when sleeping in the car

No matter where you are, safety is the most important, to maintain air circulation, of course, open the window ventilation is a very good choice, but at the same time you need to pay attention to your own safety, if the window gap is too large may let some criminals target, so the gap should not be too large, leave a small gap can be, this can not only keep the air circulation but also make yourself very safe.

If you are driving, you may need to take a break at any time, so the site is not very fixed, and it is very likely to be parked in a small space, and the small space is often prone to carbon monoxide.

Accumulation, the underground garage itself has poor air circulation, and oxygen is not as abundant as the ground, so try to choose an open place when resting, and never park your car in the driveway or in a curved place.