How often should I replace the air filters in my Kia Sorento?

I recently purchased a Kia Sorento and I want to make sure that I am properly maintaining it. How often do I need to replace the air filters and what signs should I look for to know when it's time for a replacement?

Air filters should be replaced every 12,000-15,000 miles or once a year, whichever comes first. You can also check your owner's manual for specific recommendations for your Sorento model.

Signs that your air filters need to be replaced include reduced air flow, dirty or black filter appearance, and strange smells coming from your AC system.

You can also consider upgrading to high performance air filters that can last up to 50,000 miles, but it's important to regularly check and clean them to maintain their effectiveness.