Secrecy over CFCs in medical aerosols

Medical aerosols account for a small proportion of CFC consumption and there has been little pressure to eliminate them from these applications on ozone depletion grounds because they are generally regarded as vital to safeguarding human health. The common perception has been that remaining CFC usage in this sector is in inhalant drugs for treating asthma and other respiratory problems. However, it now appears that CFCs are still being used in