The filters of passenger vehicle mainly include air filters, oil filters, and air conditioning filters. The main function of these filters is to purify the air and liquids, prevent impurities from entering the engine, and thus protect the normal operation of the engine.

The filters of commercial vehicle focuses more on efficiency and economy. The service life and replacement cycle of commercial vehicle filters are usually longer than those of passenger cars, as they need to withstand harsher working conditions and higher loads.

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