In most cars, the cabin air filter sits behind the glovebox. You might able to access it yourself by removing the glovebox from the fasteners that hold it in place. If this is the case, your owner’s manual should provide guidance on how to remove the glovebox. However, if your cabin air filter is beneath the dashboard or under the hood, it might not be as accessible.

If you’re having your vehicle serviced at a repair shop or dealership, the technician might recommend a cabin air filter replacement. Before you agree, ask to see your current filter. You could be surprised to see a filter covered in soot, dirt, leaves, twigs, and other grime, which confirms the replacement service is important. However, if your cabin air filter is clean and free of debris, you can probably wait