Media reports on the dangers of per- and polyfluoroalkyl substances (PFAS) have catapulted these compounds into the public discourse. Even people unfamiliar with the technical names for PFAS have purchased products in which they are contained. Teflon nonstick cookware, stain resistant carpeting, food packaging, cosmetics, firefighting foams, and water repellant clothing constitute a sampling of the goods containing this family of chemicals.