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 : 90241P XC26087 CF11175 CF1234 AFC1516 PC6087 C26087 24148, Kit Includes: 9x Cabin Air Filter, Kit Variations: K54-100006 K54-100147 K54-100361 K54-100482 K54-100685 K54-100686 K54-100845 K54-101004 K54-101163 K54-101322, Part Reference Numbers : 90241P XC26087 CF11175 CF1234 AFC1516 PC6087 C26087 24148