( September 4, 2024, 2:22 PM EDT) -- MINNEAPOLIS — Two consumers filed a putative class action in Minnesota federal court against the 3M Co. , E. I. DuPont de Nemours & Co. , and DuPont affiliates, contending that they were fully aware of the health risks posed by stain-repellant products containing per- and polyfluoroalkyl substances (PFAS) that they made and sold to carpet manufacturers and others without disclosing the toxicity of the products in what the plaintiffs call the “PFAS Concealment Enterprise. ”. . .