Shop Interior Air Filter Parts in Canada & Cabin Air Filter Components Replacement. Explore Cabin Air Filter Components. Browse Interior Air Filter Parts List. Maintaining your vehicle's cabin air filter is crucial for ensuring clean air inside your car and optimizing HVAC performance. Recognizable signs such as musty odors, reduced airflow, and an increase in noise from your climate control system signal it's time for a replacement. When selecting a new filter, consider options like activated carbon filters for odor elimination and HEPA filters for superior allergen removal. Choose durable, high-quality materials for longevity and peak filtration. For DIY enthusiasts, installation is straightforward with most models—simply locate the filter housing, typically behind the glove box, and swap in the new component for a breath of fresh air.