Fit For AUDI A4 B8 A5 Q5 Q5 Fit For Porsche MACAN Cabin Filter 8K0819439 CU2450 MK9515 X4332002. OEM NO. : 8K0819439 8K0819439A X4332002 8K0819439B PAB81943910 It can adsorb harmful gases such as ozone and exhaust fumes, and filter out unpleasant odors. Featuring a multi-layered composite structure, this filter effectively filters pollen, dust, spores, exhaust particles, and odors from the air, ensuring fresh air inside the vehicle. Using carefully selected non-woven fabric, activated carbon, or electrostatic cotton filter materials, it ensures high filtration efficiency and low ventilation resistance, balancing filtration performance with air conditioning output., Manufacturer: THUJMGH