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 : 93952 XC10475 CF12237 CF1361 AFC1737 PC99157 C31371 WP10277, Kit Includes: 2x Cabin Air Filter, Kit Variations: K54-100236 K54-100405 K54-100526 K54-100643 K54-100818 K54-100977 K54-101136 K54-101295 K54-101454 K54-101613, Part Reference Numbers : 93952 XC10475 CF12237 CF1361 AFC1737 PC99157 C31371 WP10277