10/11/2021
Who would have thought an aromatherapy room spray could impose potential risks of serious injury and this one in particular, is linked to 2 deaths? Be sensible and don’t get carried away by pretty packaging or sales gimmicks. Another takeaway from this incident is that preservative when used under safety guidance is definitely not something worth “freeing from”.
In the USA Walmart is recalling about 3,900 bottles of Better Homes and Gardens-branded- Essential Oil Infused Aromatherapy Room Spray with Gemstones in 6 different scents due to the possible presence of a rare and dangerous bacterium and risk of serious injury and death.
The CDC tested a version of the product and determined that it contained the dangerous bacteria Burkholderia pseudomallei which causes melioidosis. The CDC has been investigating a cluster of 4 cases of melioidosis in the U.S., including 2 deaths, 1 a child.
Any room spray that contains water, whether or not it contains EOs, needs to have an appropriate preservative system to prevent microbial growth. We could not find an ingredients list for the product that states “with gemstones”, but looking online for similar products, we found one that mentions “preservatives” and another that doesn't:
* BH&G Essential Oil Infused Aromatherapy Spray, Lavender & Chamomile, 8 oz
Water, Fragrance & Polyethylene Glycol Octylphenyl Ether
* BH&G Essential Oil Infused Room Spray, Sandalwood & Vanilla, 8oz
Water, Fragrance (essential oils), Preservatives, Polyethylene Glycol Octyl Ether
Both polyethylene glycol octyl ether and polyethylene glycol octylphenyl ether are non-ionic emulsifiers, presumably used to solubilize essential oils in water. It is unusual for a cosmetic to simply state “preservatives”, but air fresheners are not cosmetics and are regulated by the CPSC, which does not require as much detail on labels.
So, we don’t know if these products were adequately preserved, or if a “normal” preservative would guard against significant contamination. We also don’t know how much EO was actually present in these products. What we do know is that this bacteria is endemic to parts of Asia and Australia, and the products were manufactured in India.
It seems very unlikely that EOs played any role in this outbreak, but the situation is a reminder of the importance of adequate preservation in aqueous products.