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 : SEE 527997 SEE XC10491 SEE CF12150 SEE CF1342 TC38214C C38214C WP10653, Kit Includes: 5x Cabin Air Filter, Kit Variations: K54-100580 K54-100721 K54-100880 K54-101039 K54-101198 K54-101357 K54-101516 K54-101677 K54-101715 K54-101791, Part Reference Numbers : SEE 527997 SEE XC10491 SEE CF12150 SEE CF1342 TC38214C C38214C WP10653