Fun fact, PFAS is in basically anything that’s waterproofed, to the point where the guys testing for it can’t park their cars within like 150 ft of where they’re collecting to avoid compromising the samples. They also can’t wear rain jackets or waterproof boots for the same reason, and even the plastic components of the pumps they normally use for collecting water samples from groundwater deposits can throw off the samples because, you guessed it, those have PFAS in them too.