1.With the air purifier off, unplug the air purifier and remove the back cover
2.Remove the old air filters and properly dispose of them
3.Unwrap the new air filters. Place the Activated Carbon filter inside the housing first, making sure the pull tabs are facing the opening
4.Install the True HEPA filter into the housing; make sure the pull tabs are facing the opening.
5.Replace the back cover onto the housing
6.Plug in and turn on the air purifier. Use a pen or a pencil to press the black reset button inside the vent on the side of the air purifier.
The "Change Filter" symbol should now be off Be sure to also clean the dust sensor on the side of the air purifier using a clean cotton swab