Asbestos is a naturally occurring mineral fiber that was commonly used in building materials throughout the 20th century. Asbestos was valued for its durability, heat resistance, and fire retardant properties. Asbestos materials were used in a variety of products, including insulation, roofing, floor tiles, and cement.

However, asbestos has been linked to several health problems, including lung cancer, asbestosis, and mesothelioma, a rare form of cancer that affects the lining of the lungs, abdomen, or heart. Exposure to asbestos can occur through inhalation or ingestion of asbestos fibers.