Hello, metdog, and Welcome to allnurses.com
I moved your thread to the UK forum for a better response. We hope you enjoy the site.
In accordance with the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer, all treatments that contain chlorofluorocarbons (CFCs) are, where possible, being replaced with CFC-free alternatives - not because they are bad for people with asthma but because of their effect on the ozone layer.
http://www.asthma.org.uk/news_media/...reatments.html