Significant levels of PFAS found in antifogging sprays and cloths for glasses
By 
Rebecca Trager2022-01-11T14:30:00
High levels of PFAS chemicals, including two largely unknown ones, detected in products to demist glasses that have become widely used during the pandemic
High levels of per- and polyfluorinated alkyl substances (PFAS) have been found in the sprays and cloths that people have been using on their glasses to prevent fogging when wearing a face mask or shield during the pandemic.
The Duke University team in the US used mass spectrometry to analyse four top-rated anti-fogging sprays and five popular demisting cloths sold on Amazon, and it turned out that all of them contained fluorotelomer alcohols (FTOHs) and fluorotelomer ethoxylates (FTEOs), which are two relatively unknown PFAS chemicals. To the best of their knowledge, the researchers said, FTEOs have not yet been identified in any other commercial products.