Where is the cabin air filter on a 2006 Chevy trailblazer?

On a 2006 Chevy Trailblazer, the cabin air filter is located behind the glove compartment. To access it, you need to open the glove compartment and remove the stops on either side, allowing it to drop down. Once lowered, you can find the cabin air filter cover, which you can remove to replace the filter.