PFAS, better known as "forever chemicals", are ultra-resistant to water and heat – so much so that they are virtually indestructible in nature. These chemicals are everywhere in our daily lives – in clothes, cosmetics and kitchen utensils – and are poisoning us. FRANCE 24's reporters Cécile Khindria and Juliette Lacharnay went to meet the citizens who are taking on the industrial giants behind PFAS.