“…In addition, evaluation of regional differences in intervention effectiveness is needed since stove adoption and HAP levels may vary geographically due to environmental (e.g., fuel type, climate, and housing) and cultural factors (e.g., beliefs, cooking practices, and cuisine). , Our randomized control trial (RCT) explores the effectiveness, on socio-economic (stove adoption, fuel choice, and use) and technical [emissions and indoor air quality (IAQ)] bases, of a multiyear stove intervention in two rural areas, one each in North and South India. Thus far, analysis from this project has characterized stove emissions and identified factors affecting stove adoption, the diffusion of information through intervention communities, LPG use, and biomass consumption . In this paper, we focus on the effectiveness of this RCT, and various associated stove use and ventilation characteristics, in improving IAQ.…”