Air filters and cabin air filters are both designed to purify the air, but they serve different purposes. Air filters protect engine components from wear and tear, while cabin air filters prevent allergens and airborne contaminants from entering the cabin interior, thus improving cabin air quality. The cabin air filter is like a second air filter installed in the duct system to filter pollen and dust particles that enter a vehicle through its heating, air conditioning, and defrost systems. It traps dust, pollen, and other airborne materials that can make driving in a car unpleasant, especially if you have allergies or other respiratory problems.The main difference between an air filter and a cabin filter is that an air filter ensures that no dust particles enter the car's engine.
A car's air filter works the same way as a cabin filter, but it filters air entering the car's engine, while the cabin filter filters air entering the car's cabin through the air conditioning (HVAC) system& heating and ventilation. Increasing pressure drop from air moving through a clogged filter could reduce fresh air supply to the passenger compartment of vehicles and cause the fan motor to work harder to overcome the restriction.When a vehicle is traveling on the road or sitting in traffic, the air outside the vehicle, which contains all kinds of pollens and impurities, is drawn in through the fresh air intake system, even when the fan motor is turned off. The cabin air filter does its job first, removing physical particles from the air, such as dirt, mold spores and other particles. From there, air is sent through the blower motor, which dictates how much air is drawn from the fresh air vent, as well as the strength of the air exiting the vents inside the car.Dirty air can reduce engine efficiency and can damage the engine, so it's always advisable to change both your car's air filter and cabin filter from time to time to keep your vehicle in top condition.
Some signs that you need a new cabin air filter are reduced airflow through the climate control system, such as when you turn up the fan too high and hear more noise than results.Many cabin air filters are located behind the glove box and can be easily accessed by releasing the glove box from its fasteners; instructions should be in your car's owner's manual. If there is no cabin filter, all contaminants and particles present in the outside air will enter the cabin of your car. This position near the base of the windshield is also an area of high air pressure, which means there is always an abundant supply of fresh air for the system to use.Filters are one of the most important things, whether it's an air filter, cabin filter, or an air conditioning unit. The first mass-market car to receive a standard cabin air filter was the 1991 Opel Astra, a compact car on the European market, similar to the VW Golf or Jetta.Simply put, both air filters and cabin air filters are basically the same; they purify dirty air and only allow fresh air to enter.
However, their purposes are slightly different. Air filters prevent dirty air from entering the engine, while cabin air filters block dirty air from entering the cabin. If there is no cabin filter installed in your vehicle, it is highly recommended that you install one for improved cabin air quality.
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