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The Difference Between the Car AC Cabin Filter and the Air Filter

1. What is a car AC cabin filter?


The car AC cabin filter is the second air filter installed in the duct system to filter out pollen and dust particles that enter the interior of the vehicle. Car AC cabin filters are designed to prevent dust, pollen, bugs and other pollutants from entering the vehicle through the air conditioning and defrosting system. Car AC cabin filters are usually located behind the glove box, under the dashboard and the engine hood, while some vehicles' AC cabin filters are installed in the HVAC box between the blower motor and the evaporator core.


2. What is an air filter?


As the name suggests, the air filter is also provided by the internal combustion air filter, which can filter the air and prevent the impurities in the air from entering the engine during the combustion process. The air filter directly or indirectly protects engine components from daily wear and tear. They are the vehicle's first line of defense against pollutants caused by engine damage. The products provided by professional air filter manufacturing companies can prevent insects, dirt, debris and pollutants from entering the sophisticated system of the engine, thereby reducing emissions and improving vehicle performance.


3. The difference between the air filter and the car AC cabin filter


If there is no car AC cabin filter, once the dust, ozone and peculiar smell in the outside air enter the car, not only will the car air conditioner be polluted, the performance of the cooling system will be reduced. Besides, the human body will experience allergic reactions after inhaling dust and harmful gases, lung damage, irritability caused by ozone stimulation, and the influence of peculiar smell, all affect driving safety.


The engine needs to suck in a large amount of air during the working process. If it is not filtered by the air filter, the dust suspended in the air is sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder.

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