During an oil change, what is the purpose of replacing a cabin air filter?

The purpose of replacing a cabin air filter during an oil change primarily focuses on enhancing interior air quality. The cabin air filter is designed to trap dust, pollen, and other contaminants from entering the vehicle's passenger compartment through the air conditioning and ventilation systems. When this filter is clogged or dirty, it can significantly reduce the quality of air inside the vehicle, leading to discomfort for the occupants, especially for those with allergies or respiratory issues. By regularly replacing the cabin air filter, you ensure a cleaner, healthier environment within the car, making it more comfortable for everyone inside.

Other options, while they may relate to vehicle maintenance, do not directly address the specific function of the cabin air filter. Fuel efficiency, engine wear, and tire pressure are important factors in vehicle performance, but they are not impacted by the condition of the cabin air filter.