- Scented candles produce various vapors and particles when burned, but they are considered safe with typical use.
- Research suggests that the dose of harmful chemicals released is far below what is considered dangerous to human health.
- One key study showed that with normal use, scented candles do not pose health risks to consumers.
The risks of scented candles
The release of various particles and vapors into the air is a natural consequence of burning candles. However, research has shown that using scented candles is generally safe. Despite some sensational headlines that have suggested that certain types of candles, specifically those made of paraffin wax, can release harmful and cancer-causing chemicals, the risk posed to human health is low.
The effects of candle burning on air quality
In a 2014 study, researchers burned scented paraffin candles in various room sizes and measured the levels of potentially harmful chemicals such as benzene and formaldehyde that were released into the air. The results showed that even after four hours of continuous burning, the highest levels were below half of the indoor air-quality limits set by the World Health Organization and within typical indoor air concentrations of these chemicals. Based on this research, it can be concluded that scented candles do not pose known health risks to consumers under normal conditions of use.
The findings of studies on scented candles
According to odor perception researcher Pamela Dalton, the concentrations of chemicals released by burning candles are “relatively trivial.” In comparison, walking in a busy city exposes individuals to higher levels of potentially toxic chemicals from car exhaust. The amount of odor-causing particles produced by candles is usually measured in parts per million or billion, a tiny amount equivalent to a teaspoon in an Olympic-sized swimming pool.
Expert opinions on the risks of scented candles
Respiratory toxicologist Nikaeta Sadekar concurred, stating that the exposure to chemicals from scented candles is so low that they pose no significant risk to human health. Dr. Dalton added that our highly sensitive noses may lead us to overestimate the potential risks of these products.
Tips for minimizing the potential harm of scented candles
However, the National Candle Association recommends burning candles in well-ventilated areas, keeping wicks trimmed to about ¼ inch, and ensuring that the pool of wax is free of debris to minimize soot released into the air. For those concerned about the environment, soy, stearin, or beeswax candles may be a better choice, as they have been shown to produce less soot than paraffin candles. People who are sensitive or allergic to certain fragrances, including those with asthma, may experience irritation when burning scented candles and should consider using unscented candles instead.
Frequently Asked Questions
Are candles harmful to your health?
Research suggests that with typical use, candles are safe and do not pose a significant risk to your health.
Are candles as toxic as cigarettes?
No, candles are not as toxic as cigarettes.
Which candles are safe for your health?
Soy, coconut, or beeswax candles are considered safer than traditional paraffin wax candles.
Is it bad to light candles in your room?
Burning candles in a well-ventilated area that is away from drafts and vents can minimize any potential harm.
Are soy candles harmful?
There is no evidence to suggest that soy candles are harmful to your health.
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