More than half of the world's population relies on solid fuels, including biomass fuels (wood, charcoal, dung, agricultural residues) and coal, to meet their basic energy needs. Cooking and heating with solid fuels on open fires or traditional stoves results in high levels of indoor air pollution. Globally, indoor air pollution is responsible for approximately million deaths every year. Various interventions are available to reduce indoor air pollution and associated health impacts at the household level. Working chimneys and hoods, increased ventilation and improved combustion can reduce concentrations of indoor air pollutants. Reducing human exposure to these harmful by-products of combustion leads to reduced illness
