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 : R91302 91302 XC10008 CF11777 CF1251 AFC1498 PC4302 C16177 24302, Kit Includes: 11x Cabin Air Filter, Kit Variations: K54-100126 K54-100267 K54-100394 K54-100515 K54-100532 K54-100752 K54-101070 K54-101229 K54-101388 K54-101547, Part Reference Numbers : R91302 91302 XC10008 CF11777 CF1251 AFC1498 PC4302 C16177 24302