Should you use scented candles to deodorize a room?

Does regularly using scented candles to deodorize a room have any health effects, doctor? (Binh Minh, 32 years old, Quang Ninh )

Reply:

Scented candles (or scented wax candles) are candles that release fragrance when burned. The scent of scented candles promotes relaxation, helps control mood, and effectively eliminates odors, making them popular with many people. Although they offer many benefits, they should not be used frequently. The level of impact on health varies depending on the level of exposure to chemicals released into the environment by scented candles.

Cheap candles made with paraffin wax, derived from petroleum, release volatile organic compounds into the air, similar to diesel engine exhaust fumes, such as acetone, benzene, and toluene, when burned. These can cause headaches; irritation of the eyes, nose, and throat; nausea; and difficulty breathing. Inhaling large amounts can lead to lung problems, DNA changes, and even cancer.

The fragrances in these candles often contain phthalates. When burned, the heat releases the scent of phthalate chemicals, making the house smell nice. However, they can stimulate increased respiratory secretions, worsening allergy and asthma symptoms. In addition, burning scented candles also releases particulate matter (PM), also known as soot, which pollutes indoor air. PM is very small; if inhaled at high concentrations, it can settle in the alveoli, causing respiratory problems.

Candles made from natural waxes such as beeswax, soy wax, palm wax, coconut wax, and stearin (made from vegetable or animal oils) are more expensive and release fewer harmful chemicals than paraffin wax candles. However, they still produce soot when burned, and therefore still pose potential health risks if used improperly.

Burning candles produce a lot of soot, posing many health risks if used improperly. Photo: Freepik

People with allergies or chronic respiratory diseases such as asthma or chronic obstructive pulmonary disease should avoid scented candles as they may trigger acute episodes or worsen their condition.

It's best not to use scented candles frequently, especially in enclosed spaces like bedrooms, bathrooms, or air-conditioned rooms, to avoid the accumulation of toxic fumes that can cause breathing difficulties. If you like scented candles, prioritize natural wax candles and burn them in a well-ventilated room for about 15-20 minutes each day. Remember to keep the wick about one centimeter long; don't let the wick get too long as this will create a large flame and release more toxic smoke. Trim the wick regularly to reduce soot. Avoid placing candles in unsafe, flammable areas such as under blankets, bedsheets, or on paper. When extinguishing a candle, use a specialized extinguishing tool or blow it out outside to prevent soot and smoke from spreading indoors, which can affect air quality.

If you experience irritation such as a runny nose or sneezing when burning scented candles, you should stop using them. Families can replace this with other natural, safe, and cost-effective solutions for deodorizing their living spaces, such as regularly cleaning and vacuuming the house; opening windows to let in fresh air and sunlight; and planting some greenery around the house such as ferns, dracaena, or chrysanthemums.

Master of Science, Doctor Nguyen Van Ngan
Department of Respiratory Medicine, Tam Anh General Hospital , Hanoi

Source link