PUR exclusive enhanced HVAC filters up to 99.7% of dust, pollen and contaminants, PUR exclusive activated carbon 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 : 93963 XC10218C CF10074 CF1269 AFC1650 PC9978 C59188C WP10099, Kit Includes: 2x Cabin Air Filter, Kit Variations: K54-100148 K54-100302 K54-100423 K54-100634 K54-100755 K54-100914 K54-101073 K54-101232 K54-101391 K54-101550, Part Reference Numbers : 93963 XC10218C CF10074 CF1269 AFC1650 PC9978 C59188C WP10099