I belong to a massage therapy board since I will soon be attending massage school. I plan on incorporating aromatherapy candles into my massage business one day. Anywho, someone on the board asked if made soy candles and I answered no, I use paraffin. Well, another member retorted with this: Just thought you might want to know what you are selling The Truth about Paraffin Wax Candles…. Paraffin is the greyish-black sludge leftover from petroleum refinery processing. To make paraffin wax the sludge is: bleached chemically colored texturized with harmful chemicals, including acrolein In January 2001, the EPA reported as a worse case scenerio that you are exposed to the following chemicals when burning paraffin candles: Regarding formaldehyde, the EPA states, "It is shown to cause cancer in animals and may cause cancer in humans." Also, "...may trigger attacks in people with asthma" and "...ozone generators are not effective in removing.... formaldehyde." Regarding acrolein, the EPA states "It is extremely toxic to humans from inhalation...." According to the EPA, acrolein is formed from burning gasoline. Regarding acetaldehyde, the EPA states "Based on the carcinogenicity of acetaldehyde in animals, EPA has concluded that acetaldehyde is a probable human carcinogen." The January 2001 report also touched on the risk of harmful black soot particles. They stated that although soot particles are very small and can potentially penentrate the deepest areas of the lungs, further research has not been done on the subject. Guess there's at least one paraffin basher on every board. Any comments on this??