"The FDA outlawed the use of ozone-damaging CFCs (chlorofluorocarbons) in inhalers beginning in 2009, so many manufacturers are switching to the less injurious HFA (hydrofluoroalkane) instead. While HFA inhalers are generally comparable in performance to those that include CFCs, they also tend to be somewhat more expensive, with prices between $30 and $60. This can be a problem for people on limited and fixed incomes—and as it happens, asthma tends to occur more frequently in that very group.
This is where Wal-Mart comes in. The ReliOn(R) Ventolin HFA inhaler, which will be sold exclusively by the retail giant, is priced at $9.95, bringing it within reach of many suffering asmathics.