 activated charcoal is very expensive to use in aquariums and that kind of stuff. The distiller has a, when the distilled water comes out of the tube, just like if you were making moonshine, it drips down into whatever container. Well, the last stage of this distiller is a charcoal canister that you put your own activated charcoal in, and so that catches the stuff that gets distilled right along with the water, because there are some