Asbestos is a naturally occurring mineral that was widely used in construction materials such as insulation boards, cement, and ceiling tiles due to its fire-resistant and insulating properties. However, it is now known to be a harmful substance that can cause serious health problems if inhaled.

Asbestos fibers can become airborne during any work or disturbance to building materials containing asbestos. Once inhaled, these fibers can remain in the lungs and cause serious illness, including mesothelioma, lung cancer, and asbestosis.

Therefore, it's crucial to remove any asbestos-containing materials from your building to protect yourself and others from these health risks.