Review on Spearhead Premium Breathe Easy Cabin Filter | Up to 25% Longer Life | Activated Carbon (BE-920) by Dexter Diaz

This filter is perfect for my 2013 Focus, high quality filters, thick and durable. box to install it correctly, but it only took 15-20 minutes total. It just seems like the cars are purposely designed to make it hard for dealers to get that little extra scratch. I haven't changed my filter for 30,000km and that's a long time ago. I'd say you probably want to swap at 15-20k miles.