Dan DeBaun is a water filtration specialist with 18 years in the field and engineering and MBA degrees from Rutgers University. He works daily with consumer drinking water quality and gravity filtration, and draws on independent, third-party lab data covering more than 200 contaminants including PFAS, lead and other heavy metals, chlorine, pesticides, pharmaceuticals, and disinfection byproducts. He offers practical, data-backed commentary on how households should think about drinking water quality, what the recent changes to federal PFAS standards mean for consumers, what gravity and countertop filtration does and does not do, how to read filter certifications like NSF/ANSI 42, 53, and 372, and how to choose a filter for emergency preparedness or well water. He is the founder of Big...