Katrina Rosales
Burning candles is a popular way to create a cozy atmosphere, but is it bad for your health? The short answer is that it depends on the type of candle and how you burn it. Candles are made from different types of wax, including paraffin, soy, beeswax, and palm wax, and can be scented with synthetic or natural fragrances. When burned, candles release smoke and chemicals, including volatile organic compounds (VOCs) and particulate matter, which can be harmful to human health. However, the potential health risks depend on the quality of the candle, the ingredients used, and the ventilation of the space where it is burned.
| Characteristics | Values |
|---|---|
| Releases chemicals | Yes, burning candles releases chemicals such as volatile organic compounds (VOCs) and phthalates. |
| Health risks | Exposure to candle smoke and chemicals may have negative health effects, including headaches, respiratory issues, watery eyes, and an increased risk of cancer. However, the impact on health is still debated in the medical and scientific community. |
| Fire hazard | Yes, anything with an open flame poses a fire hazard, which is the most significant safety risk associated with burning candles. |
| Air pollution | Yes, burning candles contribute to indoor air pollution, particularly in inadequately ventilated spaces. |
| Allergies and asthma | Yes, scented candles can trigger allergies and asthma symptoms, especially in individuals with sensitivities to fragrances. |
| Natural fragrances | Natural fragrances, such as essential oils, are generally considered healthier than synthetic fragrances, but they can still be harmful to the airways in some cases. |
| Ventilation | Burning candles in a well-ventilated space can help minimize the potential health risks associated with candle smoke and chemicals. |
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What You'll Learn
Burning candles can release toxic fumes and chemicals
In addition, burning candles can release polycyclic aromatic hydrocarbons (PAHs), which are potentially dangerous chemicals. A 2014 study found that the amount of particulate matter released from burning candles was not enough to cause health problems in humans. However, there is a concern that extended exposure to particulate matter can lead to heart and lung issues.
The type of candle also makes a difference. Lower-quality candles emit more particulate matter and chemicals, while higher-quality candles burn off very slowly. Candles made from natural sources, such as soy or beeswax, are better options for minimizing the amount of particulate matter and toxic chemicals released into the air.
Furthermore, scented candles can trigger or exacerbate symptoms in individuals with asthma, allergies, or sensitivities to fragrances. Symptoms can include shortness of breath, nose, eye, and throat irritation, and headaches. Even natural fragrances, like essential oils, can potentially be harmful to the airways.
To minimize the potential health risks associated with burning candles, it is important to burn candles responsibly in a well-ventilated space and to choose candles made from natural sources and scented with natural fragrances.
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Natural wax and fragrances are safer
While burning candles can contribute to indoor air pollution, the available research suggests that the therapeutic benefits of burning candles far outweigh any health risks they may pose. However, it is important to choose and burn candles wisely to minimise these risks.
Natural waxes and fragrances are generally considered safer than their synthetic counterparts. Firstly, natural waxes such as soy, beeswax, and coconut oil are preferable to paraffin, a petroleum-based wax. Paraffin candles emit volatile organic compounds (VOCs) such as toluene, which is linked to health hazards including effects on the nervous and respiratory systems. Natural waxes, on the other hand, tend to be cleaner-burning and less likely to emit harmful compounds.
Secondly, natural fragrances are often derived from essential oils and natural isolates, which are generally considered safer than synthetic fragrances. Synthetic fragrances are developed in labs and may contain a variety of chemicals, including derivatives of benzene and toluene, which have been associated with an increased risk of cancer. Natural fragrances, while not automatically healthier, are less likely to contain these harmful chemicals.
However, it is important to note that even natural fragrances can cause irritation, photosensitivity, or trigger various reactions. Additionally, some essential oils can be harmful to airways and may not react well to heat, burning up before they can release their fragrance. Therefore, it is important to choose natural fragrances that are specifically designed for use in candles and to ensure adequate ventilation when burning candles to minimise any potential health risks.
Overall, while natural waxes and fragrances are generally safer, it is important to remember that any candle can contribute to indoor air pollution, and choosing candles with natural ingredients is just one way to minimise potential health risks. Other factors to consider include ensuring adequate ventilation, following candle safety guidelines, and choosing higher-quality candles, which tend to burn more slowly and emit fewer chemicals.
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Burning candles indoors can cause indoor air pollution
Burning candles is a common practice, with scented candles being especially popular. However, this simple pleasure may come at a cost to your health and the environment. The act of burning candles, particularly those made of paraffin wax, releases chemicals and smoke, contributing to indoor air pollution.
Paraffin wax, derived from petroleum, is the most common candle wax. When burned, it releases volatile organic compounds (VOCs) and phthalates, which are potentially harmful to human health. VOCs, such as toluene, benzene, and acetone, are carbon compounds that easily turn into gases at room temperature. Toluene and benzene are known to be used in paint thinners and adhesives, and extended exposure to high concentrations of toluene can impact the nervous and respiratory systems. Phthalates, found in synthetic fragrances, are released into the air and can be inhaled or absorbed through the skin, potentially leading to endocrine disruption and adverse reproductive effects.
Additionally, burning candles emit particulate matter, which consists of tiny liquid droplets and particles that can enter the lungs. While a 2014 study suggested that the amount of particulate matter released from candles is insufficient to cause health issues, there are concerns that extended exposure could lead to heart and lung problems.
The potential health risks associated with candle burning are further supported by studies examining the effects on young university students. These studies found that exposure to scented candles and their emissions was linked to an increased prevalence of respiratory and non-respiratory symptoms, including headaches, shortness of breath, and coughing.
Furthermore, scented candles can trigger or exacerbate symptoms in individuals with asthma, allergies, or fragrance sensitivities. The odors and synthetic fragrances can lead to shortness of breath, eye and throat irritation, and headaches.
To minimize the potential health risks, it is recommended to choose candles wisely and burn them responsibly. Opting for natural, un-dyed candles made from soy, beeswax, or plant-based waxes can reduce exposure to harmful chemicals. Burning candles in well-ventilated spaces and limiting prolonged exposure can also help mitigate the potential negative impacts on health.
While the therapeutic benefits of scented candles may outweigh the risks for most people, it is important to be aware of the potential for indoor air pollution and take appropriate measures to ensure a safer and healthier candle-burning experience.
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Burning candles can trigger allergies and respiratory issues
While candles are often associated with relaxation and comfort, it is important to be aware of the potential risks involved in burning them, especially scented candles. The smoke and chemicals released by candles can be harmful, and in particular, they can trigger allergies and respiratory issues.
Burning candles, especially scented ones, can release volatile organic compounds (VOCs) such as formaldehyde, acetone, benzene, and toluene. These compounds are known to be hazardous air pollutants and can negatively impact indoor air quality. Prolonged exposure to these chemicals, especially in inadequately ventilated spaces, can be detrimental to respiratory health. Individuals with asthma or other respiratory conditions may experience exacerbation of their symptoms when exposed to candle smoke. Symptoms such as shortness of breath, coughing, watery eyes, sneezing, and a stuffy nose have been associated with candle exposure.
The synthetic fragrances used in scented candles are often the source of these harmful chemicals. Petroleum-based fragrances, in particular, have been linked to the release of benzene derivatives and toluene, which are not only asthma and allergy irritants but have also been associated with the development of urothelial cancer. The use of scented candles in inadequately ventilated rooms may increase the chances of exposure to dangerous levels of these pollutants.
Additionally, candles made from paraffin wax, which is derived from petroleum, can release phthalates, a type of VOC. Phthalates have been linked to endocrine-disrupting effects, including decreased testosterone levels and increased pregnancy loss. The burning of paraffin wax candles has also been associated with an increased risk of lipoid pneumonia.
To minimize the potential risks associated with burning candles, it is recommended to opt for candles made from natural sources, such as beeswax or soy wax. These candles produce less soot and toxic chemicals and are generally considered safer alternatives. Additionally, ensuring proper ventilation during and after burning candles can help reduce the concentration of harmful chemicals in the air.
While the therapeutic benefits of burning candles are often weighed against these potential risks, it is important to make informed choices to protect one's health. Choosing higher-quality candles, burning them responsibly, and following candle safety guidelines can help strike a balance between enjoying candles and mitigating potential health hazards.
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Higher-quality candles are less harmful
While burning candles can indeed contribute to indoor air pollution, the therapeutic benefits of burning candles may far outweigh any health risks they pose. According to Dr. Farooq, a pulmonologist, the candle industry is not as well-regulated as it could be. Studies suggest that lower-quality candles emit more particulate matter and chemicals, whereas higher-quality candles burn off very slowly. Therefore, investing in higher-quality candles can be a good idea if you want to minimize the potential risks associated with burning candles.
Higher-quality candles are often made with natural, un-dyed waxes and do not contain artificial dyes or colorants. These candles may be more expensive, but they are less likely to release harmful chemicals into the air. In addition, candles made with natural fragrances, such as essential oils and natural isolates, are generally considered healthier than those made with synthetic fragrances. However, it is important to note that even natural fragrances can potentially be harmful to your airways, so it is always a good idea to burn candles in a well-ventilated space.
Another way to ensure you are burning higher-quality candles is to choose candles made with soy or beeswax-based waxes. These types of candles produce less soot and toxic chemicals than candles made from paraffin, which is a petroleum-based wax. Paraffin wax has been linked to the release of volatile organic compounds (VOCs) and phthalates, which can be harmful to human health. By choosing candles made with natural, plant-based waxes, you can reduce your exposure to these potentially harmful chemicals.
In addition to the type of wax, the fragrance of a candle can also impact its quality. Fragranced candles, whether labelled as green or organic, can emit hazardous air pollutants. Synthetic fragrances, in particular, have been found to contain phthalates, which can be released into the air and inhaled or absorbed through the skin. Therefore, opting for candles with natural fragrances or no fragrance at all can be a healthier choice.
Overall, while burning candles may release chemicals into the air, higher-quality candles are less likely to pose a significant health risk. By choosing candles made with natural waxes and fragrances and burning them in a well-ventilated space, you can further minimize any potential risks and continue to enjoy the therapeutic benefits of candles.
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Frequently asked questions
Burning scented candles can release volatile organic compounds (VOCs) like formaldehyde, which may increase cancer risk. They also release hydrocarbons, chemical compounds consisting of hydrogen and carbon, such as toluene and benzene. However, the amount released isn't enough to cause health problems in humans, according to a 2014 study. The therapeutic benefits of burning candles also far outweigh any health risks.
Candles made from beeswax, soy wax, or other plant-based waxes are healthier alternatives to paraffin candles. They produce less soot and toxic chemicals.
Some people experience vertigo, headaches, respiratory issues, watery eyes, sneezing, or a stuffy nose after candle exposure.
