Maddie James
Scented candles are extremely popular, with sales increasing by 30% in the United States since the COVID-19 pandemic, according to a report from ResearchAndMarkets.com. However, opinions are mixed on whether it is bad for one's health to smell candles. While some sources claim that candles can release harmful chemicals and pollutants that may cause respiratory issues, allergies, and even cancer, others suggest that the typical use of scented candles is unlikely to cause significant harm. It is recommended to choose candles made from natural materials, ensure proper ventilation, and limit burning time to reduce potential negative impacts on health.
| Characteristics | Values |
|---|---|
| Occasional candle burning | Safe |
| Frequent candle burning | May cause health issues |
| Paraffin candles | Releases VOCs, acetone, benzene, toluene, and other toxins |
| Soy candles | Produce fewer compounds than paraffin candles, but more of other compounds |
| Unscented candles | Safer than scented candles |
| Scented candles | Releases VOCs, may cause asthma and allergy irritation, may increase risk of bladder cancer |
| Natural candles | Less likely to contain pollutants |
| Ventilation | Important for reducing negative health impacts |
| Electric candles | Low health risk alternative |
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What You'll Learn
Scented candles can cause indoor air pollution
Scented candles are a popular way to fill our homes with pleasant aromas. However, there are concerns about their impact on indoor air quality and human health. When burned, scented candles release volatile organic compounds (VOCs), which are gases that easily and quickly vaporize into the air at room temperature. These compounds include acetone, benzene, formaldehyde, and toluene, which are known carcinogens and respiratory irritants. Long-term exposure to these chemicals has been linked to blood disorders, such as leukemia, and can increase the risk of developing cancer, allergies, asthma, and other respiratory issues.
The wicks, waxes, and perfumes used in scented candles can emit these harmful chemicals. Paraffin wax, in particular, a common ingredient in scented candles, is a petroleum byproduct that releases VOCs when burned. These VOCs are the same chemicals released in diesel fuel emissions and are known to contribute to poor indoor air quality. According to the American Lung Association, the scents from candles can cause breathing problems for people with asthma.
The risks associated with scented candles may depend on various factors, including the type and quality of the candle, the frequency and duration of use, the airflow in the space, and individual health status. While occasional use of scented candles in well-ventilated spaces may not cause harm, prolonged exposure to the chemicals released by these candles can have negative health effects. It is recommended to choose candles made from natural materials, such as beeswax or soy wax, and scented with essential oils rather than synthetic perfumes to reduce exposure to pollutants.
To minimize the negative impacts on health, it is advisable to limit the time spent burning candles and ensure proper ventilation in the space. Electric candles are also a healthier alternative, providing ambiance without the same level of health risks. While the scientific opinion on the safety of scented candles is mixed, taking preventive measures and being aware of the potential risks can help individuals make informed decisions about their use.
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Burning candles may increase the risk of cancer
Burning candles, especially scented ones, may have adverse effects on human health. They release volatile organic compounds (VOCs) into the air, which are commonly emitted from paints, cleaning products, cosmetics, air fresheners, car exhaust, and fuel-burning appliances. While typical use of scented candles is considered safe, frequent and long-term exposure to these compounds in inadequately ventilated spaces may increase the risk of developing certain types of cancer.
Volatile Organic Compounds (VOCs)
VOCs are gases that easily and quickly vaporize into the air at room temperature. Some common VOCs released by candles include toluene, acetone, and benzene, which are known toxins and carcinogens. These compounds are also found in diesel fuel emissions and can be harmful on their own, as well as when they react with other gases to form additional pollutants. The American Lung Association has identified VOCs as irritants that can cause respiratory issues, especially for individuals with asthma.
Candle Type and Quality
The type and quality of the candle play a significant role in determining the potential health risks. Paraffin candles, which are made from petroleum byproducts, are of particular concern. The process of burning paraffin wax can release VOCs and other harmful chemicals into the air. Beeswax, soy, and vegetable-based candles are considered healthier alternatives as they produce fewer pollutants.
Indoor Air Pollution
Burning scented candles can contribute to poor indoor air quality (IAQ). The chemicals released by the wick, wax, and perfume can lead to respiratory issues, allergies, and asthma attacks. It is recommended to air out the space after using scented candles to remove any lingering chemical compounds. Additionally, limiting the burning time of candles and ensuring proper ventilation can help reduce potential negative impacts on health.
Cancer Risks
Long-term exposure to certain chemicals released by scented candles, such as benzene, has been linked to an increased risk of developing specific types of cancer. For example, a study by Adamowicz et al. in 2019 suggested that scented candles may increase the risk of bladder cancer. Another study found that burning candles contributes to poor air quality and increases the inhalational exposure to chemicals of concern, which may include carcinogens. However, it is important to note that the research on this topic is limited and the conclusions are mixed.
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Candles made from natural materials are healthier
Candles are commonly used to create a cosy atmosphere and are often associated with relaxation. However, the burning of candles, especially scented ones, has raised concerns about potential health risks. To make an informed decision about candle usage, it is essential to understand the impact of candle materials on our well-being.
Paraffin wax, a petroleum byproduct, is a common ingredient in candles. When burned, paraffin releases volatile organic compounds (VOCs), including acetone, benzene, and toluene. These compounds are known carcinogens and can contribute to indoor air pollution, leading to potential health issues such as allergies, asthma, and even cancer. The American Lung Association warns that the scents in paraffin candles can cause breathing problems, especially for individuals with asthma.
To promote a healthier environment, opting for candles manufactured from natural materials is advisable. Beeswax and soy wax are recommended alternatives. Beeswax candles are considered safer as they burn with a cleaner flame, producing fewer harmful pollutants. Soy wax candles are also a healthier option, emitting fewer VOCs than paraffin candles. Vegetable-based candles are another natural choice that reduces the presence of toxic chemicals in your home.
In addition to natural waxes, choosing candles scented with essential oils instead of synthetic perfumes can further reduce exposure to pollutants. Essential oils provide a more natural fragrance, minimising the release of harmful chemicals into the air. It is worth noting that even with natural candles, ensuring proper ventilation and limiting burning time are important practices to maintain good air quality.
While the research on candle emissions and their health effects is ongoing, opting for candles made from natural materials is a prudent choice. By choosing beeswax, soy wax, or vegetable-based candles scented with essential oils, you can reduce your exposure to toxic chemicals and create a healthier and more pleasant environment for you and your loved ones.
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Burning candles can cause respiratory issues
Burning Candles and Respiratory Issues
Burning candles, especially scented candles, can emit volatile organic compounds (VOCs) such as toluene, acetone, and benzene, which are known toxins and carcinogens. These compounds are commonly emitted from paints, cleaning products, cosmetics, air fresheners, and car exhaust. While typical use of scented candles is considered safe, frequent and long-term exposure to these compounds, especially in inadequately ventilated spaces, can increase the risk of respiratory issues and other health problems.
The American Lung Association warns that scented candles can be problematic for people with asthma, as the scents alone can trigger asthma attacks and cause breathing difficulties. Additionally, the chemicals released by scented candles can worsen existing respiratory conditions or allergies, not just in humans but also in pets. Symptoms such as coughing, sneezing, or an itchy throat may indicate that the airways are irritated by the candle's emissions.
The type of candle also plays a role in respiratory issues. Paraffin candles, for example, are made from petroleum byproducts and can release VOCs when burned. These compounds are the same as those released in diesel fuel emissions and have been linked to long-term harm, including cancer, allergies, and asthma. On the other hand, natural candles made from beeswax or soy wax are recommended as they produce fewer pollutants.
To minimize the potential respiratory risks associated with burning candles, it is advisable to limit the burning time, ensure proper ventilation, and opt for natural candles made from beeswax or soy wax. Electric candles are also a healthier alternative, providing ambiance without the same level of health hazards. While the scientific opinion on the safety of candles is mixed, taking preventive measures can help reduce any negative impacts on respiratory health.
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Occasional use of scented candles is likely safe
While the use of scented candles has gained popularity, especially during the COVID-19 pandemic, concerns about their impact on health have also grown. Scented candles are made from a variety of ingredients, both natural and synthetic, and they emit volatile organic compounds (VOCs) which may have short-term and long-term negative health effects. These VOCs are commonly emitted from paints, cleaning products, cosmetics, air fresheners, car exhaust, and fuel-burning appliances. Some VOCs are harmful on their own, while others react with other gases to form additional air pollutants.
However, it's important to note that the research on the potential health risks of scented candles is mixed. While some studies suggest that burning scented candles can contribute to poor indoor air quality and increase the risk of exposure to chemicals of concern, others indicate that with typical use, the dose of harmful compounds is far below what is considered harmful to health.
In this context, occasional use of scented candles is likely safe, especially if certain precautions are taken. It is recommended to choose candles made from natural materials such as beeswax or soy wax, and scented with essential oils rather than synthetic perfumes. After burning a candle, it is advisable to ventilate the space to eliminate any chemical compounds produced during burning. Staying away from low-quality candles made with paraffin or artificial materials is also suggested.
Additionally, it's important to be mindful of any respiratory symptoms that may occur when around scented candles, such as coughing, sneezing, or an itchy throat. If these symptoms disappear when the candles are removed, they are likely the cause of respiratory irritation. For older adults and people with allergies, asthma, cancer, heart disease, or compromised immune systems, extra caution is advised, and it may be best to avoid scented candles altogether.
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Frequently asked questions
Scientific and expert opinion on the safety of candles is mixed. Scented candles release volatile organic compounds (VOCs) which may have short-term and long-term negative health effects. However, research suggests that with typical use, the dose of VOCs is far below what is considered harmful to your health.
VOCs are gases that easily and quickly vaporize into the air at room temperature. Some VOCs are harmful on their own, while others can react with other gases to form pollutants once they are in the air. Common VOCs released by candles include toluene, acetone, and benzene, which are known toxins and carcinogens.
To reduce any negative impacts on your health, limit the time you burn candles and ensure the space is well-ventilated. You can also try using vegetable, soy, or beeswax-based candles, which are healthier options.
