Primatene Mist was taken off the market in the United States in 2011 because it contained chlorofluorocarbon (CFC) propellants, which are known to deplete the ozone layer. After reformulating with HFA ...
5 A collaborative effort between General Motors, Du Pont, and Frigidaire to find safer refrigerant led Thomas Midgley Jr. to the discovery of Freon® in 1928, a type of chlorofluorocarbon (CFC), 6 ...