Every year, 3.2 million people die prematurely from diseases attributable to household air pollution caused by incomplete combustion of solid fuels and kerosene used for cooking. Particulate matter (fine dust) and other household pollutants inflame the airways and lungs, impair the immune response, and reduce the oxygen-carrying capacity of the blood.

To address household air pollution and its negative impact on health, the World Health Organization provides technical support and capacity building to countries and regions to evaluate and scale-up health-promoting household fuels and technologies.