Filter is impregnated with Ozzy® microbes that are transported along with the OzzyJuice® into the SmartWasher® tank. Recommended for normal to heavy parts cleaning applications. Natural occurring Ozzy® microbes eat grease, oil, and other contaminants cleaned off dirty parts. Creates harmless by-products of carbon dioxide and water. Bioremediation process leaves the OzzyJuice® clean and strong and ready to use time after time.