So after turning down the Toyota service center offer to change the cabin air filter I still had ordered replacing the worn-down front tires, Leaving Firestone, I stopped at AutoZone to pickup a cabin filter, $15 with tax. But I have an AutoZone discount card that requires a minimum $25 purchase to work. So I kept shopping. I like to keep a Leatherman multi-tool and they had one, $25, on a bingo rack. A little more than I wanted to pay but for $40, the same as Toyota wanted for an air filter change, the 2010 Prius has a clean filter and multi-tool for on the road. Bob Wilson
i thought they were the same. anyway, i tap mine it, and only replace it because i like the oem charcoal.