How Candles Lower Indoor Air Quality

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Candles are a wonderful thing; they smell great and can really set the mood of a room. Unfortunately, burning certain candles too often can be as harmful as someone smoking indoors. Indoor air quality scientists have found that many candles will release pollutants into the air from the chemicals they are comprised of.
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  1. Wax – Stay away from candles that are made from paraffin wax. Instead look for a beeswax or soy alternative, which release significantly less pollutants.
  2. Wick – Pay attention to the size of the wick and how it burns to determine if it should be used in your home. Stay away from thick and wire wicks; instead look for thin, braided ones. If the wick tends to curl while it is being burned then you’re in the clear!
  3. Flame – The bigger the flame, the worse it can be. A burning candle should have a low, calm flame that steadily burns. Try to keep all candles away from air ducts and open windows. You want a well ventilated room, but keep the candles distanced from any direct drafts.
  4. Time – Candles should only be lit for one continuous hour at a time. Wait sufficient time for the wick and candle to cool before lighting again.
  5. Illness – An increase in pollutants means an increase in possible allergens. High amounts of these pollutants in your home can aggravate current allergies or cause a development in respiratory diseases like asthma.


A high concentration of pollutants from candles can lower the overall air quality inside of your home. To improve your air quality try and limit candle use — especially ones with harsh chemicals in them. Other ways you can improve your home’s air quality is to have you air ducts cleaned by professionals. To learn more, or to schedule an appointment with the pros at EnviroGreen Boston, give us a call at (844) 775-7700.

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