High levels of toxic ‘forever chemicals’ found in anti-fogging sprays for glasses

A Duke University study nine top rated products contained PFAS, which has been linked to cancer and other health problems

Anti-fogging sprays and cloths often used to prevent condensation on eyeglasses from wearing a mask or on face shields may contain high levels of potentially toxic PFAS forever chemicals", according to a new study led by Duke University.

Researchers tested four of the top-rated anti-fogging sprays as well as five top-rated anti-fogging cloths sold by Amazon. In all nine products, experts found fluorotelomer alcohols (FTOHs) and fluorotelomer ethoxylates (FTEOs), two types of per- and polyfluorinated alkyl substances (PFAS).