The anti-fogging sprays and cloths many people use to prevent condensation on their eyeglasses when wearing a mask or face shield may contain high levels of per- and polyfluorinated alkyl substances (PFAS), a new Duke University-led study finds.
Four anti-fogging sprays and five anti-fogging cloths - all of which have received top ratings on Amazon - were subjected to high-resolution mass spectrometry by experts from Duke University.
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