Low air flow restrictionAdhesive forms pocket pleat for the filtersComes with urethane soft sealing gasketProvides a mesh support screeningPleated-paper filtersWix Air Filter Panels are designed to circulate clean air inside the passenger area of the vehicle. They filter the contaminants down to microscopic size and provide a linear path for low air restriction. These are pleated-paper filters and are placed on the outside air intake of the vehicle's passenger compartment.