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Business woman with foggy glasses from breath caused by wearing disposable mask

PFAS in antifogging sprays and cloths for glasses

27 January 2022, 16:15

High levels of per- and polyfluorinated alkyl substances (PFAS) have been found in sprays and cloths that people around the world have been using on their glasses to prevent fogging when wearing a face mask or shield during the pandemic.

Scientists at Duke University in the US have used mass spectrometry to analyse popular antifogging products for glasses that are sold on Amazon. All products contained PFAS where the sprays contained up to 20.7mg/ml solution. The products contained mainly FTOHs (fluorotelomer alcohols) and FTEOs (fluorotelomer ethoxylates) with unknown potential health risks, but there are scientific studies indicating that FTOHs can break down to PFOA in the body, one regulated PFAS substance associated with toxicity.

Link to article in Chemistry World 

Länk till publikation 

Lisa Skedung
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