PFAS are a large and diverse universe of chemistries that are critical to the products that power our lives – the cellphones, tablets and telecommunications we use every day to connect with our friends and family; the aircrafts that power the U.S. military; alternative energy sources; and medical devices that help keep us healthy. PFAS are being used to support COVID-19 testing equipment and to provide lifesaving protection in medical garments – both uses that have helped save lives around the world in the midst of the pandemic.