Brooke Martin
Candles have been a source of light and decoration for centuries, but are candle smokes bad for your health? There is a debate surrounding the potential dangers of burning candles, with some claiming that they release harmful toxins and others arguing that the amount of toxins is not significant enough to pose a health threat. Studies have shown that burning candles releases hydrocarbons and volatile organic compounds (VOCs) into the air, and the fragrance in scented candles can contain hundreds of chemicals, including phthalates. While there is little scientific evidence directly linking candle smoke to health issues, it is always a good idea to minimize your intake of any type of smoke. Experts recommend choosing higher-quality candles and burning them responsibly to minimize potential risks.
| Characteristics | Values |
|---|---|
| Candle smoke toxicity | There is a debate about whether candle smoke is toxic or not. Some claim that candles release potentially harmful toxins, while others argue that candles don't contain enough toxins to pose a significant health threat. |
| Health risks | Burning candles releases hydrocarbons, volatile organic compounds, and particulate matter into the air, which can be a problem for children, individuals with pre-existing lung conditions, or those with respiratory issues. However, the amount released is generally not enough to pose a significant health risk to most people. |
| Candle composition | Candles are typically made from paraffin wax, but can also be made from beeswax, soy wax, or palm wax. Soy-based candles are marketed as non-toxic, but there is limited research to support this claim. |
| Candle alternatives | Ghee and oil lamps, flameless candles, and wax melts are suggested as alternatives to candles that produce less toxic emissions. |
| Candle safety guidelines | To minimize smoke production and potential health risks, it is recommended to keep candles away from drafts, trim the wick, use a candle snuffer or wick dipper instead of blowing them out, and ventilate the room after extinguishing. |
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What You'll Learn
Candle smoke may be toxic and cause respiratory issues
There is an ongoing debate about whether candles are bad for your health. Burning candles releases hydrocarbons and volatile organic compounds (VOCs) into the air, which may be harmful. However, the amount released is not considered enough to pose a significant health risk to most people.
Some people claim that candles release potentially harmful toxins. A study from Saudi Arabia found that the use of scented candles was associated with wheezing and asthma-like symptoms in young, non-smoking university students. Another study from Denmark found that candle users were more likely to be obese, former smokers, more physically active, and to have higher household incomes and alcohol consumption. Among the participants, 834 suffered respiratory events, and those who did were more likely to be older, more overweight, current smokers, and have less household income.
The type of wax and wick used in candles can also affect the amount of soot and toxins released. For example, candles made from natural sources, such as palm stearin, release less soot and fewer dangerous chemicals than those made from paraffin wax. The European Candle Association recommends keeping candles away from drafts, trimming the wick, using a candle snuffer or dipping the wick in wax instead of blowing it out, and ventilating the room after extinguishing a candle to minimize smoke inhalation.
Some experts caution that candles release chemicals into the air, which can be problematic for children and those with pre-existing lung conditions. Lower-quality candles may also emit more particulate matter and chemicals, so choosing higher-quality candles and burning them for no more than three to four hours at a time is recommended.
Overall, while candle smoke may contain some toxins, there is currently no conclusive evidence that it is harmful to health when used responsibly and in well-ventilated spaces.
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Burning candles release hydrocarbons and volatile organic compounds
There is an ongoing debate about whether burning candles is harmful to health. Some people argue that candles release potentially toxic compounds, while others claim that the amount of toxins is insufficient to pose a health risk.
Indeed, burning candles does release hydrocarbons and volatile organic compounds (VOCs) into the air. However, the amount released is generally not considered to pose a significant health risk to most people. Studies have shown that the concentration of these compounds is typically below established safe levels. Nevertheless, it is important to choose and burn candles wisely to minimise any potential risks. For example, lower-quality candles may emit more particulate matter and chemicals, so opting for high-quality candles that don't use dye or paraffin wax can be a safer choice. Natural candles, such as those made from beeswax, soy, or palm wax, tend to release fewer chemicals and less soot.
In addition to the type of candle, the way a candle is burned can also affect the amount of smoke and pollutants produced. Keeping candles away from drafts and trimming the wick to a length of 5-10 millimetres can help reduce smoke. Using a wick dipper or candle snuffer to extinguish the flame instead of blowing it out can also minimise smoke and wax splatter. Proper ventilation of the room after burning a candle is also important to disperse any accumulated pollutants.
While the smoke from burning candles in a well-ventilated area is generally not a cause for concern, there are certain situations where caution may be warranted. For example, Dr. Farooq suggests that people with bladder cancer or chronic lung conditions like COPD should be mindful of their exposure to candle smoke, as there is some evidence of an association between candle burning and bladder cancer. Additionally, scented candles can trigger allergic reactions or asthma attacks in some individuals.
In conclusion, while burning candles does release hydrocarbons and volatile organic compounds, the amount released is typically not enough to pose a significant health risk. However, choosing high-quality, natural candles and following proper burning and ventilation practices can further minimise any potential risks associated with candle usage.
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Candle smoke may be especially harmful to children and those with lung issues
There is some debate about whether candles are harmful to health. Burning candles releases hydrocarbons and volatile organic compounds (VOCs) into the air, which may be inhaled or absorbed through the skin. However, the amount released is not enough to pose a significant health risk to most people.
That said, candle smoke may be especially harmful to children and those with lung issues. Studies suggest that higher concentrations of particulate matter can lead to negative lung effects and pulmonary effects in susceptible individuals. A study of young, non-smoking university students in Saudi Arabia found a significant association between wheezing and the use of scented candles. The study also found asthma-like symptoms in scented candle users, which may lead to adult-onset asthma later in life.
Another study of 6,757 participants in Denmark found that candle use was associated with cardiovascular and respiratory events. Those who experienced these events were more likely to be older, overweight, current smokers, and have a lower household income.
To minimize the potential risks associated with candle smoke, it is recommended to choose candles wisely, burn them responsibly, and follow candle safety guidelines. Higher-quality candles that burn slowly are thought to be safer. It is also important to keep candles away from drafts, trim the wicks, and ventilate rooms after extinguishing candles.
Some people recommend avoiding candles altogether and using alternatives such as flameless candles, wax melts, or oil lamps, which are smoke-free and less toxic.
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Natural candles may be a healthier option
There is an ongoing debate about whether burning candles is harmful to health. Some people argue that candles release potentially harmful toxins, while others claim that candles do not contain enough toxins to pose a significant health threat.
Natural candles made from beeswax, soy wax, or coconut wax are a healthier and more eco-friendly alternative to traditional paraffin wax candles. These natural waxes burn cleaner and produce fewer harmful byproducts. For example, candles made from palm stearin release half as much soot as paraffin candles. Natural candles also have a lower environmental impact, making them a more sustainable choice.
Soy wax, in particular, is a renewable resource that is farmed in the US, supporting American agriculture. It provides a cleaner burn than paraffin wax, with a slower burn rate, better value over time, and the ability to hold and disperse fragrance effectively. However, soy wax candles do not offer the same air-purifying benefits as beeswax candles and can be harmful when they contain additives or synthetic fragrances.
Beeswax candles are another excellent choice for natural candles. They burn cleaner, with minimal soot and no emission of chemicals, and have a longer burn time compared to other natural waxes. Beeswax candles also provide a subtle, naturally-scented fragrance and may even help clean the air as they burn.
When choosing natural candles, opt for those with sustainably sourced wicks made from wood or 100% cotton, and natural fragrances or essential oils. Avoid candles with metal-cored wicks, as these can release trace amounts of heavy metals, sometimes even lead, into the air.
While natural candles are a healthier option, it is still important to ensure adequate ventilation when burning any type of candle to maintain good indoor air quality.
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Candle safety guidelines can reduce health risks
While there is some debate about whether candles are bad for your health, there is little scientific evidence to suggest that they pose a significant danger. Burning candles does release hydrocarbons into the air, but not in large enough quantities to be a major concern. However, it is still important to minimise your intake of any type of smoke, and there are several candle safety guidelines that can help reduce potential health risks.
Firstly, it is recommended to choose candles wisely. Studies suggest that lower-quality candles emit more particulate matter and chemicals, so opting for higher-quality candles can help minimise risk. Natural candles, such as those made from palm stearin, release less soot and fewer dangerous chemicals than those made from paraffin wax. Soy-based candles are also marketed as non-toxic, but the truth is more nuanced. While soy wax is a renewable resource, there is limited research on the amount of soot inhaled from candles and how much is considered too much.
Proper candle care and safety practices are crucial to reducing health risks. Before lighting a candle, always trim the wick to a length of about a quarter to half an inch and ensure it is no longer than 5 to 10 millimetres. Keeping the wick trimmed helps prevent uneven burning, dripping, flaring, and sooting. It is also important to remove any debris, such as wick trimmings or matches, from the wax pool. Debris adds more fuel to the candle, increasing the risk of flare-ups or small fires.
When burning candles, avoid placing them near drafts, fans, open windows, or crowded areas. Drafts can increase smoke production and cause candles to burn improperly. Keep candles at least 12 inches away from anything flammable, and never leave a burning candle unattended. Always use a heat-resistant and sturdy candle holder that can catch any drips or melted wax. Discontinue burning a candle when half an inch of wax remains in the container or two inches for pillar candles.
To extinguish a candle, avoid blowing it out or using water, as this can create wax splatter. Instead, use a wick dipper or candle snuffer to submerge the wick in the wax pool, or gently press the wick into the melted wax. Ensure the candle is completely out and the wick ember is no longer glowing before leaving the room. Ventilate the room after extinguishing the candle to minimise any potential health risks from smoke inhalation.
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Frequently asked questions
Burning candles releases hydrocarbons and volatile organic compounds into the air, but there is little scientific evidence to suggest that they are a danger to your health. However, some people claim that candles release potentially harmful toxins, and the smoke may be a problem for kids or those with pre-existing lung conditions.
If you'd rather avoid candles, you can use flameless candles, ghee and oil lamps, or wax melts.
Natural candles, such as those made from palm stearin, beeswax, soy wax, or palm wax, are thought to be the safest types of candles to burn. Higher-quality candles are also thought to be safer.
To minimise the amount of smoke a candle produces, keep it away from drafts, trim the wick if it gets longer than 5-10mm, and use a wick dipper or candle snuffer to extinguish it.
