Asbestos is a toxic mineral that was frequently used in construction materials throughout the UK in the 20th century. Its heat-resistant properties made it a popular choice for insulation, roofing tiles, and other building materials. However, it was later discovered that prolonged exposure to asbestos fibers could cause lung cancer, mesothelioma, and other serious illnesses.

Although the UK banned the use of asbestos in new construction projects in 1999, many older buildings still contain asbestos-containing materials (ACMs). These materials may release dangerous fibers into the air if they are disturbed or damaged, posing a significant health risk to anyone nearby.