The scent of death in every home: how scented candles subtly harm us.

The soft glow and soothing scent of a candle can transform a room into a quiet and peaceful haven for our body and mind. However, recent scientific findings suggest that these popular interior additions may be a source of invisible pollutants indoors, severely impacting our health, as reported by ZME Science.

A study from Purdue University indicated that scented candles can cause indoor air pollution comparable to that produced by diesel engines. Terpenes, the chemical compounds responsible for the fragrance of wax melts, react with the ozone present in homes, leading to a significant level of pollution. This pollution is comparable to that from gas stoves and diesel engines, according to research published in the journal Environmental Science & Technology Letters.

A study conducted in Purdue's laboratory highlighted potential health risks associated with these particles, emphasizing the need for further toxicological research. The findings underline the importance of considering indoor air quality when designing buildings and operating heating, ventilation, and air conditioning systems to mitigate health risks.

Volatile organic compounds (VOCs) are chemicals that easily turn into vapors or gases at room temperature. Many household products, including candles, can emit VOCs and negatively affect indoor air quality. In candles, VOCs can be released from wax, fragrances, and wicks. Common VOCs emitted during candle burning include benzene, toluene, formaldehyde, and acetaldehyde, which are associated with various health issues.

A study from the universities of Birmingham and Manchester, published in the journal Nature Communications, also demonstrated that even short-term exposure to air pollution, such as from burning candles, affects brain function. Inhaling PM2.5 particles impairs cognitive abilities such as selective attention and emotion recognition, regardless of whether a person breathes through their nose or mouth.

While the physical consequences of air pollution are well-documented, this research adds data on its cognitive effects related to dementia and reduced intellectual development in children. The study involved 26 adults who were tested before and after spending an hour in a non-ventilated room with a burning candle or regular air.

The results showed a significant decline in cognitive abilities when performing complex tasks after such exposure. Researchers recommend reducing indoor air pollution by ventilating spaces while cooking or extinguishing candles to minimize personal exposure.

A Danish cohort study published back in 2022 in the journal Indoor Air examined the link between candle use and cases of cardiovascular and respiratory diseases. The study gathered data from 6,757 participants and found no statistically significant associations between candle use and the risk of cardiovascular and respiratory complications. However, the authors noted that experiments with more precise exposure assessments are necessary.

Although scented candles undoubtedly enhance the atmosphere indoors, it's essential to be aware of their potential impact on air quality. By making informed choices and opting for safer alternatives, one can enjoy the warmth and fragrance of candles while minimizing potential health risks.

This material is for informational purposes only and does not contain advice that may affect your health. If you are experiencing issues, please consult a specialist.