In the developing countries, energy required for cooking often has the biggest share in the total national energy demand and is normally met mostly by biomass. This paper presents the results of experimental studies on emission conducted on a number of traditional and improved cookstoves collected from different Asian countries using wood and charcoal as fuel. The emission factors from this study are comparable to those reported in the literature. In the case of wood combustion, CO2 emission factor is in the range of 1560-1620 g kg(-1). The emission factors for pollutants CO, CH4, TNMOC and NOx were in the ranges 19-136, 6-10, 6-9 and 0.05-0.2 g kg(-1), respectively. In the case of charcoal combustion, CO2 emission factor is in the range of 2155-2567 g kg(-1). The emission factors for pollutants CO, CH4, TNMOC were in the ranges 35-198, 6.7-7.8, 6-10 g kg(-1), respectively.