Most filter advice sells you a system before it tells you what you are treating. We start with the contaminant, the certification that actually removes it, and what the whole thing costs over five years.
Four contaminants drive most household filter decisions. The limit is not the same as safe: it is the level at which a utility has to act.
US EPA maximum contaminant levels and the PFAS drinking water regulation. Your own figures are in your utility's annual Consumer Confidence Report.
Tank and cartridge systems that treat every tap in the house.
6 articlesPoint-of-use systems for kitchen drinking water.
12 articlesMembrane systems for the widest contaminant removal.
7 articlesIon exchange and salt-free conditioning for hard water.
5 articlesChlorine and chloramine removal for skin and hair.
6 articlesPrivate well treatment: iron, sediment and bacteria.
5 articlesBudget portable filtration you can set up today.
19 articlesContaminants, testing, and what the numbers actually mean.
17 articlesSide-by-side comparisons and decision support.