Scented candles can cause 'indoor air pollution'
http://www.katu.com/news/medicalalert/118018784.html
http://www.katu.com/news/medicalalert/118018784.html
"The sweet smell of candles or air fresheners make many American homes smell nice, but do you know all the chemicals that can be found in the fragrances? According to indoor air quality experts at the Oregon Environmental Council, some of those chemicals could have a wide-range of health effects."