This LBNL facility is used for detailed evaluation of the fuel efficiency and pollutant emissions of cookstoves, including methods traditionally used in developing regions of the world and cookstoves designed for increased efficiency. The facility is equipped with state-of-the-art instrumentation for monitoring cooking parameters, such as fuel use rate and moisture content, flame and food temperatures, and for measuring gas and particle phase pollutant concentrations in real-time, including carbon monoxide, carbon dioxide, particulate matter, and black carbon.