Asbestos was once very popular due to its fire-resistant properties, durability, and low cost. It was used in a wide range of materials, such as insulation, roofing, flooring, pipes, and ceiling tiles. Although many asbestos-containing materials (ACMs) have been banned or phased out over time, others are still in use today, especially in older buildings.

Asbestos is only dangerous when it is disturbed or damaged. This can happen during renovation, demolition, or routine maintenance work, causing tiny asbestos fibers to become airborne and potentially inhaled. The risk of exposure depends on several factors, such as the type and amount of asbestos present, the level of damage or deterioration, and the state of the material (friable or non-friable).

People who are most at risk from asbestos exposure are those who work in industries where asbestos has been extensively used, such as construction, shipbuilding, and automotive repair. However, homeowners, tenants, and visitors to older buildings are also vulnerable to the health effects of asbestos if proper precautions are not taken.