EPA Lists Substitutes for Ozone-Depleting Substances in Refrigerators

Summary

The U.S. Environmental Protection Agency (EPA) has added isobutane (R-600a) and R-441A to its list of acceptable substitutes for ozone-depleting substances in household refrigerators, freezers, and combination units, subject to specific use conditions. The EPA also approved propane (R-290) as a substitute for CFC-12, HCFC-22, and R-502 in retail food refrigerators and freezers.