What are PFAs? Everything you need to know about the

Toxic chemicals have been found in everything from strawberries to waterproof clothing. Should we worry?

• ‘They’re in dust – and the thing I use to clean the dust’: can I eradicate PFAS from my home?

Per- and polyfluoroalkyl substances or PFAS are a group of chemicals that have been used in manufacturing and added to consumer products since the 1950s. They allow grease and dirt to slide off carpets and textiles, protect industrial equipment from heat damage and corrosion, and help to smooth and condition the skin.