Absolutely NO, From the day one EPS is Manufactured with Eco-friendly Pentane gas as blowing agent. EPS is 100 % CFC, HCFC or its fiber Free material. EPS does not contain any Ozone depleting chlorofluorocarbons   or Hydro chlorofluorocarbons (HCFCs). Therefore It’s Ozone Depletion Potential Zero (ODP=0).   Since it has ZERO ODP it falls under Low GWP category. (Global Warming Potential).  (Pls. refer toEnvironment page for more details)