Asbestos was used as an insulating material for buildings and electrical wires. Asbestos has also been used in the manufacturing of fire-resistant clothing, cement and floor tiles, brake linings, and clutch linings. Although the use of asbestos has decreased, it is still used in the manufacturing of brake linings, and asbestos insulation remains in many workplaces and homes.

Occupational risk factors for asbestosis include the following:

• Boilermakers
• Construction workers
• Milling
• Mining
• Pipe fitters
• Products made from asbestos