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 : 90212C XC25840 CF10435 CF1185 AFC1433 PC5840C C25840 C25840C 49355, Kit Includes: 3x Cabin Air Filter, Kit Variations: K54-100013 K54-100316 K54-100437 K54-100557 K54-100727 K54-100886 K54-101045 K54-101204 K54-101363 K54-101522, Part Reference Numbers : 90212C XC25840 CF10435 CF1185 AFC1433 PC5840C C25840 C25840C 49355