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 : 89685 XC35898 CF10546 CF1128 AFC1306 PC1040 C35898 24685, Kit Includes: 5x Cabin Air Filter, Kit Variations: K54-100132 K54-100273 K54-100371 K54-100683 K54-100821 K54-100980 K54-101139 K54-101298 K54-101457 K54-101616, Part Reference Numbers : 89685 XC35898 CF10546 CF1128 AFC1306 PC1040 C35898 24685