What is the function of a car's cabin air filter?

1 Answers
VonErin
07/29/25 12:14am
The main functions of a car's cabin air filter are as follows: 1. It ensures the filter fits tightly against the housing, preventing unfiltered air from entering the vehicle cabin. 2. It separates solid impurities from the air such as dust, pollen, and abrasive particles. 3. It adsorbs harmful substances in the air including moisture, soot, ozone, odors, carbon oxides, SO2, and CO2. Regarding the maintenance of a car's cabin air filter: 1. Replace it promptly when it becomes excessively dirty, as a clogged filter loses its effectiveness. 2. The normal replacement frequency is at least twice a year.
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