BreatheSmart FLEX - Troubleshooting - Filter Light Reset

To Reset the Filter Light: 
Every time you change the filter, you need to reset the filter light.

While the FLEX is powered on, press and hold filter button for approximately 5 seconds. (It will beep and change the yellow or red light back will change to the green light.)

Additional information: Changing the Filter for the BreatheSmart FLEX