ODOUR BUSTER™ ORIGINAL Odour Buster™ Original is a premium clumping cat litter made from responsibly-mined bentonite clay and our odour-eliminating ingredients. It was developed from a formula originally created to control odours in the toughest agricultural settings: pig and chicken farms! If the Odour Buster™ recipe can eliminate odours in chicken coops and pig pens, imagine what it can do for your cat’s litter box!