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 : 89907 XC35643 CF10372 CF1059 AFC1271 PC5643 C35643 24907, Kit Includes: 3x Cabin Air Filter, Kit Variations: K54-100084 K54-100364 K54-100485 K54-100656 K54-100698 K54-100857 K54-101016 K54-101175 K54-101334 K54-101493, Part Reference Numbers : 89907 XC35643 CF10372 CF1059 AFC1271 PC5643 C35643 24907