PFA, or Polyfluoroalkyl substances, refers to a group of man-made chemicals used in various industrial and consumer products. These substances are known for their water- and grease-resistant properties, making them popular in items like non-stick cookware, water-repellent clothing, and food packaging. However, PFAs are persistent in the environment and can accumulate in the human body, raising concerns about potential health effects. Due to their widespread use and environmental persistence, PFAs have become a focus of regulatory scrutiny. Many countries are working to limit or ban certain types of PFAs, as studies suggest they may be linked to health issues such as cancer, liver damage, and immune system effects.