OE Replacement for 2008-2018 Smart Fortwo Cabin Air Filter (Base / Brabus / Brabus Cabrio / Citybeam / Cityflame / Electric Drive / Iceshine / MHD / Passion) - Walmart.com
Amazon.com: FRAM Fresh Breeze Cabin Air Filter Replacement for Car Passenger Compartment w/ Arm and Hammer Baking Soda, Easy Install, CF10612 for Select Smart Vehicles : Automotive
Smart Fortwo Cabin Air Filter | Smart Car of America Forum