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 : 90263C XC36204C CF11220 CF1271 AFC1549 PC4329 PC6204C C36204C 24329, Kit Includes: 6x Cabin Air Filter, Kit Variations: K54-100080 K54-100221 K54-100290 K54-100411 K54-100760 K54-100919 K54-101078 K54-101237 K54-101396 K54-101555, Part Reference Numbers : 90263C XC36204C CF11220 CF1271 AFC1549 PC4329 PC6204C C36204C 24329