Sustainability 101: PFAS-Free Filters
Fluoropolymers are excellent materials for filters. Polytetrafluoroethylene (PTFE), the same polymer used in Teflon coatings, is inert, stable, hydrophobic, and durable, making it an ideal filtration media. Except for one potential problem. PTFE is a member of the PFAS (per- and polyfluoroalkyl substances) class. Even though PTFE no longer contains...