Are Those Relaxing Scented Candles Harming Your Health?

In recent years there has been a jump in the popularity of aromatherapy, which is the use of scented essential oils or nice scents to get therapeutic benefits. As a result, people have started using scented candles around their houses, in their workplaces, and while taking long baths. However, now many health experts are warning people about the potentially harmful effects of using chemically laced scented candles. These candles are often made of petroleum-based wax, such as paraffin or gel and use artificial fragrances as opposed to deriving scent from natural oils.

Recently Dr Saurabh Sethi, a Clinical Gastroenterologist, made an Instagram video warning people against using candles that emit harmful fumes and can damage lungs. In his video’s caption, Dr Sethi wrote, “Your favourite scented candles could be harming your lungs, leading to what’s termed “chemical pneumonia” What’s the issue? As candles burn, they release alkenes, found in car exhaust, which can harm lung tissues. Fumes from synthetic candles also emit paraffin and phthalates, potentially disrupting your hormonal balance.”

A 2023 study published in the journal Environmental Impact Assessment Review revealed that burning certain candles can release high levels of volatile compounds such as formaldehyde and benzene. These compounds are linked to respiratory issues such as exacerbating asthma. Experts also believe that some synthetic fragrances used in candles can cause nausea, dizziness, and headaches in those who are highly sensitive to smell.

Dr Sethi suggests that one can replace paraffin-based candles with candles made of beeswax, soy wax, or vegetable wax. These natural waxes, which are infused with essential oil, do not emit harmful fumes. They generally emit less smoke and keep the indoor air cleaner.

However, it is important to note that any burning material, even if it is a natural candle, can emit smoke. Therefore proper ventilation is recommended when using a scented candle. If you using a scented candle in a windowless room then burn the candle for a short period of time. Another great suggestion is to switch candles with natural oil diffusers that do not cause any smoke.

Handling scented candles responsibly is also the key to enjoying them while minimising the damage. According to the recommendations of the European Candle Association, one should avoid burning candles in a drafty room, trim the wick if it is longer than 10 to 15 millimetres, and use a candle snuggler instead of blowing out the candle.