Biomass fuels account for more than one-half of all energy use in many developing countries andrnas much as 95% of all energy use in some of the poorest nations. In Ethiopia, it accounts morernthan 90% of total energy consumption. The dominant utilization of traditional fuels â€“ biomass â€“rncoupled with use of technologies of low efficiency is contributing to environmental degradationrnand prevalence of health problems due to indoor air pollution.rnBecause biomass will continue to be dominant source of energy in developing countries in thernforeseeable future, the development of more efficient biomass technologies is vital for alleviatingrnthe problems associated with biomass burning. The development of Mirt Injera stove in Ethiopia isrnone of the results of efforts made to address such problems. The purpose of this study is to assessrnthe potential of this technology in reducing environmental problems â€“ indoor air pollution andrnnatural resource degradation. The two major pollutants quantified in this study are CO and PM.rnThe concentrations of these pollutants in the kitchen were measured using UCB particle monitorrnand HOBO CO data logger.rnThe results obtained from this study shows that by installing Mirt stove in the kitchen it could bernpossible to reduce CO concentration by 88.8%, PM by 17.3% when the analysis is made based onrnthe mean 8-hour time frame. The 15-minute maximum has also showed similar trend, 91.5% forrnCO and 19.3% for PM levels. The most important parameter to make comparisons of these stovesrnis mean pollutant concentration during baking time. In terms of this parameter, the reductionsrnobtained are 91% and 19.3% for CO and PM respectively. Besides to characterizing the twornsystems using their pollutant generation, the study tries to highlight the fuel efficiency of Mirtrnstove in comparison with the open fire system. The result shows that it could achieve specific fuelrnconsumption of 45% as compared to the open fire system.rnKey words: CO, PM, Mirt stove, Open fire, Fuel efficiency