The CONTAM model takes int account chemical specific candle emission rates, indoor VOC deposition and adsorption rates, size and building characteristics, ventilation rates as well as actual consumer candle use practices and time-activity patterns. Modeled VOC and particulate exposures were compared to existing short term and long term indoor air quality guideline values. Petry et al. (2013) calculated consumer time-weighted average exposures to candle emissions of benzene and formaldehyde using the ConsExpo 1-box model2 and compared those to existing indoor/outdoor guideline values. All three investigators concluded that on the basis of their investigations, emissions from candles are unlikely to pose long term health effects to people.VITO (2008) pointed out that short term peak exposures may trigger or aggravate symptoms in sensitive individuals.