Diatomaceous earth is used as a pest control agent. Because diatomaceous earth is composed of algae, it can be completely biodegraded and will not leave toxic waste, so it will not affect the health of animals or people. Diatomaceous earth is used as fertilizer, and other fertilizers such as nitrogen, potassium and phosphorus contain many nutrients and minerals. Diatomaceous earth prevents diseases, prevents diseases caused by humidity and temperature conditions. Diatomaceous earth repels cats and dogs and prevents the presence of fleas. Diatomaceous earth is used as a deodorant to remove bad odors in litter boxes and other places.