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 : 93964 XC10487 CF1279 CF1282 AFC1689 PC9938 C31373 WP10125, Kit Includes: 5x Cabin Air Filter, Kit Variations: K54-100115 K54-100256 K54-100403 K54-100628 K54-100807 K54-100966 K54-101125 K54-101284 K54-101443 K54-101602, Part Reference Numbers : 93964 XC10487 CF1279 CF1282 AFC1689 PC9938 C31373 WP10125