Burning incenses and candles have been identified as source of Volatile and Semi Volatile Organic Compounds (VOC/SVOC) and particles in indoor environments. In this study, the repeatability and reproducibility of test methods using emission chambers to investigate emissions of volatile and particulate compounds from scented candles and incense products as well as the impact of experimental volume of the emission test chamber has been studied. Finally, the best-adapted emission test chamber and test protocol for the evaluation of incense and candles emissions will be proposed