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 : 90206P XC25858 CF11671 CF1123 AFC1428 PC4579 C25858 24579, Kit Includes: 5x Cabin Air Filter, Kit Variations: K54-100085 K54-100226 K54-100353 K54-100609 K54-100696 K54-100855 K54-101014 K54-101173 K54-101332 K54-101491, Part Reference Numbers : 90206P XC25858 CF11671 CF1123 AFC1428 PC4579 C25858 24579