The U.S. government-mandated switch to CFC-free inhalers is causing problems for millions of people with asthma and other lung diseases, according to The New York Times. CFCs (chlorofluorocarbons), used as propellants in the inhalers, damage the Earth's ozone layer.
As of Jan. 1, 2009, CFC inhalers will have to be replaced with inhalers that use propellants called HFAs (hydrofluoroalkanes). But HFA inhalers cost much more than CRC inhalers and the new and old inhalers differ in feel, force and taste, and in how they're primed and cleaned, the Times said.