PUR exclusive enhanced HVAC filters up to 99.7% of dust, pollen and contaminants, PUR exclusive weaves are USA-engineered to last up to 15,000 miles, 25% longer than standard performance of 12,000 miles, PUR filter use thick, industrial strength electrostatic media to trap even the tiniest of particles while densely packed activated carbon prevents gases and odours from entering the cabin, Road debris, exhaust fumes, and contaminants undergo filtration through a three-layer system, which includes a dust filter for trapping road debris, a particle-averting filter to block airborne particles, and an adsorption filter for absorbing exhaus, Contains soda combined with carbon cleans the outside air flowing through the ventilation system, Part Reference Numbers : 89689 XC45662 CF10329 CF1074 AFC1315 PC5662 C45662 24689, Kit Includes: 2x Cabin Air Filter, Kit Variations: K54-100237 K54-100350 K54-100471 K54-100624 K54-100764 K54-100923 K54-101082 K54-101241 K54-101400 K54-101559, Part Reference Numbers : 89689 XC45662 CF10329 CF1074 AFC1315 PC5662 C45662 24689