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 : 90211P 90254P CAF211P XC25836 XC36179 CF10742 CF11178 CF11819 CF1173 CF1228 AFC1359 PC4013 PC5836 C25836 C36179 24013 49368 WP10234 WP10361, Kit Includes: 8x Cabin Air Filter, Kit Variations: K54-100059 K54-100200 K54-100372 K54-100493 K54-100637 K54-100688 K54-100847 K54-101006 K54-101165 K54-101483, Part Reference Numbers : 90211P 90254P CAF211P XC25836 XC36179 CF10742 CF11178 CF11819 CF1173 CF1228 AFC1359 PC4013 PC5836 C25836 C36179 24013 49368 WP10234 WP10361