Although it is now illegal to use asbestos in the construction or refurbishment of any premises, many asbestos containing materials which were used in the past remain in place. It is reassuring that as long as such materials are in good condition and not disturbed or damaged there is no risk and need not be removed. They can, however, become a danger to health if disturbance or damage allows asbestos fibres to be released into the air where people can breathe them in.