How do I know when it's time to change the vacuum bag in my BISSELL Power Partner, Model 6800?

Answer: The Full Bag Indicator will turn to a red color to indicate that your vacuum bag needs to be changed. To keep your vacuum operating at maximum efficiency, change the dust bag frequently and clean or replace the filters as needed. The Full Bag Indicator will also display the red color to indicate a reduction in airflow due to a clog in the vacuum.