Although there is general acceptance that fragranced products can play an important role in enhancing the odor quality of the indoor environment, the increased use of scented candle use has also raised queries about the exposure to candle emissions and their possible impact on indoor air quality. Fragranced candles, however,are only one source of volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs) or particulate matter (PM) in the indoor environment. In fact VOCs, SVOCs and PM are ubiquitous in indoor air and their presence is due to a multitude of sources, both anthropogenic and natural