TLDR Activated carbon and reverse osmosis primarily. Distillation is most effective, but is more energy intensive (due to the energy required to evaporate and condense) and if used for drinking, should be re-minalized (sodium, potassium, magnesium, and calcium salts).
https://www.epa.gov/sciencematters/reducing-pfas-drinking-wa...
TLDR Activated carbon and reverse osmosis primarily. Distillation is most effective, but is more energy intensive (due to the energy required to evaporate and condense) and if used for drinking, should be re-minalized (sodium, potassium, magnesium, and calcium salts).