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 : 90264P XC16098 CF11672 CF1233 AFC1521 PC6098 C16098 24046, Kit Includes: 3x Cabin Air Filter, Kit Variations: K54-100121 K54-100336 K54-100457 K54-100604 K54-100738 K54-100897 K54-101056 K54-101215 K54-101374 K54-101533, Part Reference Numbers : 90264P XC16098 CF11672 CF1233 AFC1521 PC6098 C16098 24046