(September 14, 2023, 7:54 AM EDT) -- LOS ANGELES — A consumer filed a putative class action in California state court accusing a water filter maker of violating California’s unfair competition law (UCL) and other state consumer protection laws by allegedly misrepresenting its products’ abilities to purify water when the products in fact do not remove contaminants such as per- and polyfluoroalkyl substances (PFAS)....