Heads up that this might be a little dusty. Consider doing this outside or over a trashcan.
To recycle your Mill Plus carbon filter
Pop open the lid (like paint can) using a flat head screwdriver or butter knife
Put the spent activated charcoal in the garbage. We know this doesn't feel quite right, but it's okay! Burying activated charcoal is a form of carbon sequestration, so putting it in the trash won’t add emissions.
Peel off and dispose of the foam along the top edge