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 : 93953 SEE XC25840 XC10595C CF12155 CF1383 TC31372 C31372 WP10279 WP2153, Kit Includes: 11x Cabin Air Filter, Kit Variations: K54-100555 K54-100744 K54-101062 K54-101221 K54-101380 K54-101539 K54-101659 K54-101697 K54-101735 K54-101773, Part Reference Numbers : 93953 SEE XC25840 XC10595C CF12155 CF1383 TC31372 C31372 WP10279 WP2153