Candles and health awareness | Health & WellBeing

Candles and health awareness | Health & WellBeing

The Following is a Google AI-assisted overview, of the 'Candles & Health' topic -  November 2025 


Burning candles, especially scented ones made with paraffin wax, can release indoor air pollutants like particulate matter, volatile organic compounds (VOCs), and chemicals such as formaldehyde and toluene, which can cause respiratory problems like asthma, headaches, and allergic reactions.

The risk is higher for those with existing respiratory conditions, and proper ventilation is crucial to minimise exposure.

Choosing candles made with natural waxes like soy or beeswax and using them in moderation can help reduce potential harm, along with frequent ventilation and air purification.   

Potential health risks:-

  • Respiratory irritation: Particulate matter and VOCs can irritate the eyes, nose, and throat, potentially worsening conditions like asthma and allergies.
  • Chemical exposure: Synthetic fragrances in scented candles can release harmful chemicals such as formaldehyde and toluene, which are known toxins linked to various health issues.
  • Carbon monoxide: Incomplete combustion can release carbon monoxide (CO), which is a poisonous gas
  • Systemic effects: Some studies suggest a link between exposure to candle emissions and long-term effects on heart and lung health, such as increased risk of heart disease and chronic bronchitis.

How to reduce risks:-  

  • Improve ventilation: Always burn candles in a well-ventilated area and open windows after use to clear the air.
  • Use natural waxes: Opt for candles made from natural waxes like soy, beeswax, or coconut wax, as they tend to release fewer pollutants than paraffin wax.
  • Trim the wick: Keep candle wicks trimmed to about 5-10 millimetres to ensure a cleaner, more even burn.
  • Avoid synthetic fragrances: Choose candles scented with essential oils or those that are unscented to avoid synthetic fragrance chemicals.
  • Use alternatives: Consider other ways to add fragrance or ambiance, such as simmering spices and fruits in water or using a Himalayan salt lamp.
  • Clean regularly: Use a vacuum cleaner with a HEPA filter and clean surfaces frequently to reduce indoor air pollutants. 

The information above was drawn from the following articles across the internet:-

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