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Concept.png PFAS 
(Chemical,  Pollutant,  Carcinogen)Rdf-entity.pngRdf-icon.png
The Devil We Know.jpg
Poster for the 2018 documentary film The Devil We Know.

PFAS (sometimes PFOS or PFOA, Per- and polyfluoroalkyl substances), most commonly known under the DuPont brand name Teflon, are widely used long lasting chemicals, which break down very slowly over time;[1] so slowly that they are also known as "forever chemicals".[2]

PFAS are commonly found in every household, and in products as diverse as non-stick cookware, stain resistant furniture and carpets, wrinkle free and water repellant clothing, cosmetics, lubricants, paint, pizza boxes, popcorn bags, and many other everyday products.[3]

They are also found in the blood of people and animals all over the world and are present in a variety of food products and in the environment (especially in the US).


In 1946, DuPont introduced nonstick cookware coated with Teflon. Today the family of fluorinated chemicals that sprang from Teflon includes thousands of nonstick, stain-repellent and waterproof compounds called PFAS. These are also used in fire-fighting foam.[4][5][6] 3M became its main manufacturer.[7]

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