PUR exclusive enhanced HVAC filters up to 99.7% of dust, pollen and contaminants, PUR exclusive activated carbon 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 : 90220P 90220C XC36071C CF11179 CF1186 AFC1494 PC6071C C35845 C36071C 24227, Kit Includes: 11x Cabin Air Filter, Kit Variations: K54-100032 K54-100173 K54-100304 K54-100425 K54-100618 K54-100713 K54-101031 K54-101190 K54-101349 K54-101508, Part Reference Numbers : 90220P 90220C XC36071C CF11179 CF1186 AFC1494 PC6071C C35845 C36071C 24227