PFAS can be found in the environment near facilities where they are made or in areas where products containing PFAS are often used. PFAS may be found in contaminated drinking water, food, indoor dust, some consumer products, and workplaces. Most exposures occur through consuming contaminated food or water. Only a small amount of PFAS can get into your body through your skin, so very little PFAS exposure occurs during swimming, bathing, or showering in water contaminated with PFAS. Although some types of PFAS are no longer used, many products such as food packaging, firefighting foam, and stain-resistant treatments still contain PFAS.