A study indicating that paraffin wax that is made from petroleum and is used in many scented candles releases carcinogens when it's burned. The main problem? Lighting candles in unventilated spaces, such as bathrooms, or lighting them every day over a period of time. According to the study's authors, occasional use of scented candles, like what you use around the holidays, should not cause any problems. So go ahead and infuse your family room with essence of holly if that's what puts you in a holiday mood. But open the windows if you can, at least for part of the time. And if possible, look for candles made from beeswax or soy, which don't cause such harmful emissions.
People with allergies or asthma may want to stay clear of scented candles, or certain scents that may make your allergys or asthma flare up. Scented candles should be used in well-ventilated rooms. Candles of all types should not be left burning unattended. Buy candles from reputable candle manufacturers only. Homemade or craft-fair candles may contain fragrances that are not approved for use in candles, or may contain too much fragrance. This can cause candles to burn in an unsafe way.
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