Pneumoconiosis is any lung disease caused by the inhalation of organic or nonorganic airborne dust and fibers. Patients usually encounter these inhalants in the workplace environment, and therefore it is known as an occupational disease. The most frequently encountered types of pneumoconiosis are asbestosis, silicosis, and coal miner's lung. These particles cause inflammation and fibrosis in the lung resulting in irreversible lung disease. Prevention relies on workplace exposure management and health management regulations.