If there is a peculiar smell in the car, should I use internal circulation or external circulation?

If there is a peculiar smell in the car, try to open the external circulation as much as possible to circulate the car and the outside air.

It is caused by the following reasons: 1. The air conditioner is often turned on the coldest. 2. The air volume is always the smallest.

3. Always use internal circulation. In this way, there is condensate in the condenser pipe all the time, which is easy to mold. In general, because of the reason of air conditioning refrigeration, there is a temperature difference between the condenser pipe and the outside air, forming condensation, when the car is on the air conditioner for a long time, the condensate is combined with the air, and the smell of water will be produced, so every time you open the external circulation, you can smell a smell like water.

Extended Information: Precautions for Automotive Internal and External Circulation:

1. There is often an automatic switching function of internal and external circulation on the model, which can be automatically switched according to the external air quality conditions. 2. After buying a new car, you should keep the air exchange inside and outside the car as much as possible like a newly renovated house, so as to volatilize and release the harmful gases in the car as soon as possible. 3. In a short period of time after entering the car, people should open the windows or open the external circulation ventilation facilities to introduce fresh air, and they should not drive for a long time in the closed windows and doors, let alone sleep or rest for a long time in the closed car.

4. When turning on the air conditioner and heater, use the air communication mode inside and outside the car, and try to avoid using the self-circulation mode in the car for a long time. 5. In the area where the traffic jam is serious, the air conditioner and heater switch should be temporarily adjusted to the self-circulation mode in the car, and the window should be temporarily closed for the vehicle driving with the window open. The owner of the car develops such a habit and adjusts the air conditioning circulation system in the car in time according to the air conditions outside the car.

1. It may be that there is a peculiar smell in the outside air. If it is the smell of the outside air, there will be a temporary odor, so it is good to change to a place with fresh air.

2. The inner core of the air conditioner is dirty. The filter element of the air conditioner can play a role in filtering dirty air, but if it is not cleaned after a long time, the dirty filter element will only pollute the air in the car twice, so there will be peculiar smell when the external circulation is opened.

3. There are foreign objects blocking the air inlet pipe. If there is a smelly foreign body blocking the air inlet duct, the air coming in the air conditioner will naturally have a peculiar smell, and the foreign body needs to be cleaned up in time.

Hope it helps, hope.

When the car air conditioner is turned on, an unbearable smell is generated, which is mainly mustyIt arises for the following reasons:

1. Because the air conditioner filter has not been cleaned for a long time, and the air is humid in the rainy season, the air conditioner filter is humid and warm, resulting in mold breeding and musty smell.

2. The outside air flows through the air conditioning system pipes, which must bring moisture and dust, and most of the water and dust will be excluded from the car through the air conditioning drainage, but there will also be a small amount of residual moisture in the air conditioning system pipes combined with the dust in the air.

There are the following solutions to the odor of air conditioners:

1. Clean the air conditioning system or replace the air filter element frequently to reduce the growth of mold.

2. Master the correct method of turning on and off the air conditioner, it is generally best to turn off the air conditioner 5 minutes before parking, and then turn on the natural wind, so that the temperature in the car can be picked up as soon as possible, and the water droplets condensed will not be condensed in the air conditioning pipe due to the temperature difference after parking, so that the air conditioning pipe can be dried and block the breeding of mold and fungus.

It is advisable to check the air inlet outside the air conditioner. It's best to wash it and replace the filter.

First of all, the reason for the peculiar smell after the empty bai tune is turned on is du

1. After the air conditioner is used for many years, the indoor filter and the inner copper sheet will be squeezed.

A certain amount of dust, so that after accumulating to a certain amount, a certain odor will be generated, and as the air conditioner is turned on, the odor of the air conditioner will drift into the air.

2. Because the air conditioner is refrigerated and heated, in many cases, there will be moisture inside the indoor unit, so when the air conditioner is turned off, the air conditioner without dry and mildew prevention function will be shut down immediately, so that the internal moisture has always existed, and mold will be produced in the long run, and the musty smell will naturally occur.

Knowing the reason, then how do we get rid of odors?

1. If the service life of the air conditioner is not very long, and there is dust in the panel and air outlet, the user only needs to wipe it by himself, and open the panel to remove the filter screen for clean water flushing, which can simply solve the problem of peculiar smell.

2. If the air conditioner is used for a long time and the user cannot simply clean it by himself, we need to contact the after-sales service to clean the air conditioner in time to make the air conditioner more healthy and fresh.

It is indeed easy to open the external circulation, turn off the external circulation, open the internal circulation, or change the air conditioning filter.

(1) The solution to the odor of the air conditioning exhaust duct.

The best way is to choose an open, sunny environment, open the car door, open the external circulation to the maximum (do not turn on the air conditioner), or turn on the warm air for 5-6 minutes to blow out the odor.

2) The solution to the odor of the air conditioner filter.

The air conditioner filter is generally replaced once a year, but it is feasible to change the air conditioner once every three months when the air conditioner is often used or the external environment is extremely poor. If the air conditioner filter is dirty, you can simply blow it, but you should avoid cleaning it many times, otherwise the filtration effect of the air conditioner filter will be significantly reduced.

3) The solution to the odor on the evaporation box.

This kind of odor is more difficult to deal with, usually it is recommended that you go to a professional maintenance company to do air conditioning cleaning, cleaning is when the air conditioner is turned on, spray special air conditioning cleaning agent to the blower.

The main reason why air conditioners have odors is that air conditioners have the three main conditions for mold growth (i.e., warmth, humidity, and nutrients).

Therefore, every time the air conditioner is turned on, these bacteria and mold will enter the cabin with the air conditioning wind and be inhaled into the human body, causing headache, fever, sudden sore throat, tonsil infection, asthma, flu symptoms, dermatitis and wounds that are difficult to heal and other adverse reactions, and in serious cases, people will have dizziness, chest tightness and other discomforts. For example, when the air conditioning system is running, the water vapor in the air forms condensate on the surface of the condensation evaporator of the air conditioner, in which - - part of the water will remain in the evaporator and air conditioning pipeline after the air conditioner is turned off, and these moisture will combine with microorganisms and pollutants in the air to become a breeding ground for mold in the humid, warm and dark air conditioning system. Or because of the nicotine produced by the driver and passengers smoking in the car, and the smell of rubber, plastic and leather in the car, as well as the smoke, dust and exhaust fumes in the outside air enter the car and pollute the air conditioning system.

Summary. Hello, there is a gasoline smell in the external circulation mode of the car, but there is no internal circulation because there is something called evaporator in the air conditioning system, which is used for refrigeration. But in a humid environment, the evaporator can become a breeding ground for mold and fungus, and at this time, the evaporator will become moldy, and this smell will be emitted into the car through the air outlet.

There is a smell of gasoline in the external circulation mode of the car, and there is nothing wrong with the internal circulation.

Hello, Lu Shenju has a gasoline smell in the external circulation mode of the car, and the internal circulation is not because there is something called evaporator filial piety in the air conditioning system, which is used for refrigeration. However, in a humid environment, the evaporator can become a breeding ground for mold and fungus, and at this time, the evaporator will become moldy, and this smell will be emitted into the car through the air outlet.

There are still many car owners who like to smoke in the car, but smoking like this often can be harmful. The filter element of the air conditioner in the car is made of activated carbon. If the activated carbon adsorbs a large amount of harmful gases such as smoke odor, the smoke smell and tar smell will remain on it, so that there will be a peculiar smell in the car; Many insects may enter the pipe collapse front.

Many of these bugs will enter the mausoleum and be put into the air conditioner when the external circulation is opened, and then their corpses will rot inside. At this time, they will also smell a bad smell.

The reason why the external circulation of the car has a smell, but the internal circulation has no smell: 1. There is something called an evaporator in the air conditioning system, and its function is refrigeration, but in a humid environment, the evaporator will become a breeding ground for mold and fungus, and the evaporator will become moldy, and the smell will be emitted into the car through the air outlet; 2. There are many car owners who like to smoke in the car, but there will be harm after smoking like this, the air conditioning filter in the car is made of activated carbon, if the activated carbon absorbs a large amount of smoke and other harmful gases, resulting in smoke and tar left on it, so that there will be a peculiar smell in the car; 3. There may be a lot of insects in the pipe, and many of these insects will enter the air conditioner when the external circulation is turned on, and then their corpses will rot inside, and then they will also smell a relatively unpleasant smell. @2019