What is the purpose of an AC filter in a car?

The main function of a car air conditioning filter is to filter the air entering the passenger compartment, ensuring the health and comfort of the driving environment. The filter's dense structure also prevents unpurified air from directly entering the car, maintains the efficient operation of the air conditioning system, and reduces the risk of bacterial growth. In addition, it indirectly improves driving safety by keeping the windshield free of fog condensation. It is best to replace it every 10,000 kilometres or 6 months; if you frequently travel through high-pollution areas or dusty environments, the replacement interval should be shortened. Regular maintenance of the filter can extend the air conditioner's lifespan, reduce energy consumption, and ensure that the air inside the car always meets health standards.