Asbestos is a naturally occurring mineral that was widely used in building materials throughout the 20th century. It was valued for its heat resistance and durability, and was commonly used in insulation, roofing, and flooring materials, among other applications.

However, it is now widely recognized that exposure to asbestos fibers can be extremely hazardous to human health. Over time, asbestos fibers can become lodged in the lungs and cause a variety of serious health issues, including lung cancer, mesothelioma, and asbestosis.

As a result, many buildings constructed prior to the 1980s may contain asbestos, and it is important to identify and remove any asbestos-containing materials in order to protect the health of those who live and work in those buildings.