Asbestos is a group of naturally occurring minerals that were widely used in construction materials, insulation, and other products in the past. While asbestos has many favorable properties, such as being resistant to fire, heat, and chemicals, it also poses a serious health risk when its fibers are inhaled or ingested.

Exposure to asbestos can cause serious respiratory diseases, such as lung cancer, mesothelioma, and asbestosis. The symptoms of these diseases typically do not appear for many years after exposure, making them difficult to diagnose and treat. Asbestos is classified as a hazardous substance and requires special handling and disposal procedures to protect people and the environment from its harmful effects.