PUR exclusive enhanced HVAC filters up to 99.7% of dust, pollen and contaminants, PUR exclusive activated carbon 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 : 90101P XC15850 CF10388 CF1058 AFC1341 PC1043 PC4854 C15850 24854, Kit Includes: 5x Cabin Air Filter, Kit Variations: K54-100069 K54-100210 K54-100343 K54-100598 K54-100703 K54-100862 K54-101021 K54-101180 K54-101339 K54-101498, Part Reference Numbers : 90101P XC15850 CF10388 CF1058 AFC1341 PC1043 PC4854 C15850 24854