Asbestos is a harmful material that was commonly used in constructing buildings until the 1980s. This material can cause severe health problems such as lung cancer, Mesothelioma and Asbestosis. Even with small amounts of exposure, asbestos can pose a serious health risk. Asbestos fibers can be inhaled and are not visible to the naked eye. The best way to ensure safety when working with asbestos is to get rid of it altogether.