Owning a vehicle means that you want it to be in the best condition possible, and ensure it is efficient. Make sure to bring it in for regularly schedule maintenance inspections so that the parts can be checked to ensure they are operating correctly. The cabin air filter is the filter responsible for filtering the air that is fed into the vehicle’s heating and air conditioning systems. The filter traps dust, pollen, and other foreign particles, preventing them from entering the vehicle and polluting the cabin. Since they work in essentially the same fashion as a regular engine air filter, cabin air filters get dirty and should be replaced when they become excessively contaminated, or at the regular service interval recommended by the manufacturer. Usually a dirty cabin air filter will produce a few symptoms that can notify the driver that attention may be required. Less Efficient Air Flow A common symptom associated with a bad cabin air filter is poor airflow from the vehicle’s interior vents. An excessively contaminated cabin air filter will not be able to filter the incoming air as effectively as a clean filter would. As a result, this will cause restricted airflow. Additionally, this will cause the vents to blow with noticeably less force, reducing the overall capacity of the air system and put extra strain on the blower motor. Unusual Odor From Vents Another sign of a bad or failing cabin air filter is an unusual odor coming from the vehicle’s interior vents. An excessively contaminated filter may produce a dusty, dirty, or musty smell. The smell may become more pronounced when the vent is turned on, and may make the cabin uncomfortable for the passengers. A cabin filter is a simple component that should be replaced when necessary to keep the system working as efficiently as possible, and to keep the cabin as comfortable as possible for the passengers. If you suspect that your cabin filter may be dirty, have the vehicle examined by us, to determine if your car is due for a cabin air filter replacement. Always remember to bring the vehicle in at anytime when you notice an issue. By inspecting the issue at the first sign, you can help prevent further wear and tear in the long run. You can also reduce the chance that other parts and components will start to fail, resulting in a costly repair bill. By keeping the vehicle well maintained, you can increase the efficiency of the vehicle when you drive.