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 : 90227P XC25876 CF10547 CF1198 AFC1345 PC5876 C25876 C25879 24065, Kit Includes: 5x Cabin Air Filter, Kit Variations: K54-100065 K54-100206 K54-100378 K54-100676 K54-100732 K54-100891 K54-101050 K54-101209 K54-101368 K54-101527, Part Reference Numbers : 90227P XC25876 CF10547 CF1198 AFC1345 PC5876 C25876 C25879 24065