Does anyone know of an activated charcoal cabin filter for the 2004 Aveo? I believe the OEM version is just paper, so am doubtful. Some places have the NPN filter misclassified as AC, but it's actually "particulate paper" from what I can tell. PO had a smoker in the family, so would like to install an activated filter if available to deal with any residual odor after we have the car ozoned. TIA