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 : 90248P XC10509 CF11666 CF1255 AFC1636 PC4270 C28198 24270, Kit Includes: 4x Cabin Air Filter, Kit Variations: K54-100083 K54-100224 K54-100459 K54-100606 K54-100747 K54-100906 K54-101065 K54-101224 K54-101383 K54-101542 KFM-100086 KFM-101490 KFM-102081 KFM-102814 KFM-103562, Part Reference Numbers : 90248P XC10509 CF11666 CF1255 AFC1636 PC4270 C28198 24270