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 : 90198P XC25877 CF10545 CF1169 AFC1506 PC5877 C25877 24829, Kit Includes: 7x Cabin Air Filter, Kit Variations: K54-100119 K54-100260 K54-100349 K54-100470 K54-100662 K54-100692 K54-100851 K54-101010 K54-101328 K54-101487, Part Reference Numbers : 90198P XC25877 CF10545 CF1169 AFC1506 PC5877 C25877 24829