Asbestos Exposure Mesothelioma Asbestos is a class of minerals that bind together to create fibrous, thin materials. When these materials are agitated, tiny fibers float in the air and could be inhaled. They cling to the lining of the lungs (pleura), and sometimes reach the heart or abdomen lining (peritoneum https://wikimapia.org/external_link?url=https://vimeo.com/703523197