QUOTE : <i>Hyggelige</i> as the Danes may be, there is one serious drawback to being crazy about candles: the soot. Studies show that lighting just one candle fills the air with more microparticles than traffic in a busy street.<br /><br />A study undertaken by the Danish Building Research Institute showed that candles shed more particles indoors than either cigarettes or cooking. Despite Denmark being a highly regulated country, we have yet to see warning labels on candles. Nobody messes with the hygge fanatics.