Asbestos is a naturally occurring silicate mineral that was widely used in construction and insulation materials due to its fire-resistant and durable qualities. However, it was later discovered that exposure to asbestos can cause serious health problems, including lung cancer and mesothelioma. Asbestos fibers are small and can easily become airborne, making it dangerous to inhale them.

Because of its dangers, the use of asbestos was banned in the UK in 1999. However, many buildings constructed before that time still contain asbestos materials. If you live in a building that was constructed before 1999, it's important to have it surveyed for asbestos and remove it if it is found.