PFAS removal from public water is a costly and long process. Here’s how to filter out some of it

PFAS can be found in the blood of most Americans and in many drinking water systems.

Chemists invented PFAS in the 1930s to make life easier: Nonstick pans, waterproof clothing, grease-resistant food packaging and stain-resistant carpet were all made possible by PFAS. But in recent years, the growing number of health risks found to be connected to these chemicals has become increasingly alarming.