Ford recommends replacing your 2015-2024 Mustang cabin air filter every 12 months! Cabin air filters clean incoming air during heater, air conditioner and vent modes keeping Dust, pollen, mould spores and other particles out that otherwise flow into your Mustang. Cabin filters are particularly beneficial for people with allergies and they do an effective job of removing allergens from the air. The FP78 is engineered to fit precisely in various Ford models, providing easy installation and reliable performance. With its durable construction, this filter improves air quality and helps protect the vehicle’s HVAC system from debris, contributing to a more comfortable and pleasant driving experience.