The U.S. Environmental Protection Agency (EPA) has shown that compared to unscented candles, ones that give off a “pleasant” odor give off more soot. In fact, research shows that some scented candles’ smoke contains nearly the same amount of toxins as those from cigarettes. Just as startling is a study conducted by Dutch scientists who measured the air particles in churches where candles were burned for nearly nine hours straight. The results? The air in these churches contained 10 times as many free radicals as did the air next to a busy highway.
In addition to scent, the wick can pose a health risk. The EPA also found that candles with a cored wick, made with cotton wrapped around a metal or paper core, release the dirtiest soot which contains zinc, tin, lead and cadmium particles. Unfortunately, these particles can seep deep into our lungs, creating health complications and exacerbating existing ones, especially affecting those with allergies and asthma.
Suddenly that fireside hot chocolate or cotton candy breeze candle doesn’t sound so appealing, does it? While the names and colors of scented candles often seem good enough to eat or even conjure up vacation memories, it’s wise to choose healthier candle options.
Why Some Candles are so DangerousMany candles are made primarily with paraffin, which is from petroleum, a nonrenewable source that contains carcinogenic substances. Add fragrance to that, and we’ve got a double whammy. According to a study conducted by the EPA, chemicals in fragrance include ethanol, acetone and benzyl acetate, to name just a few. In fact, when the word “fragrance” appears in anything from scented candles to skin products, it’s thanks to a loophole in which most industries are legally allowed to use the word in lieu of the long list of harmful ones that can cause respiratory failure, kidney damage, central nervous system disorders and headaches.
As if this isn’t bad enough, the manner in which people use candles worsens the situation. Because they are often used for relaxation or ambiance purposes, candles are often lit in smaller spaces like bathrooms or nooks where ventilation is virtually non-existent.
7 Candle Safety Tips
- Choose unscented candles
- Select soy candles over paraffin ones. Soy candles are made from soybeans and unlike paraffin, are a renewable, non-toxic source. Not only do they burn cleaner, but they also last significantly longer.
- Look for wicks with a thin braid, not ones where metal or paper is used for support.
- Keep wicks trim. When the wick is long, the higher the flame, and the more harmful soot particles are released in the air.
- Light candles in a well-ventilated room. However, be sure it’s not extremely drafty, since too much draft can create up to 50% more soot.
- Get to the bottom of the matter. The American Lung Association advises not using scented candles or fragrances to hide odors. Instead, the Association urges people to “Figure out what is causing the odor, then clean that up and ventilate to add fresh air.”
- Does burning anything in your house not sit well with you? Check out flameless candles. Many look just as realistic as real ones and are safe.