A self-cleaning scooper will not eliminate 100% of litter box odors. But CATLINK helps significantly reduce typical odors because waste is promptly removed and contained in a fully enclosed drawer below the globe. Additionally, a large carbon filter located in the front of the waste drawer absorbs odors and moisture to discourage mold growth (a major culprit of that telltale litter box smell). This is why CATLINK is a great choice for multiple-cat households.