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 : 90205P XC15873 CF10218 CF1122 AFC1366 PC4482 C15873 24482, Kit Includes: 9x Cabin Air Filter, Kit Variations: K54-100048 K54-100189 K54-100365 K54-100486 K54-100674 K54-100754 K54-100913 K54-101072 K54-101231 K54-101390, Part Reference Numbers : 90205P XC15873 CF10218 CF1122 AFC1366 PC4482 C15873 24482