"Those are the bodies that tested and certified filters from California-based Clearly Filtered, whose pitchers and under-sink systems I've been testing this month alongside a number of other brands. This is relevant, because Clearly is offering discounts on all of its filters right now. This includes a 10-percent-off blanket deal on all filters bought through its website, and 19 percent off if you enter your phone number to receive a promo code."
"Clearly Filtered is a bit different from one of its main competitors, ZeroWater, whose filters I'm also testing. ZeroWater removes pretty much all total dissolved solids, including minerals like calcium and magnesium, from water that has passed through its filter. This is an utterly thorough approach, but I've also noted it usually doesn't taste quite as good as water that still has some mineral content."
Consumers are wary of drinking-water contaminants such as chlorine, microplastics, PFAS, and groundwater heavy metals. Many water-filter manufacturers make broad claims, but only some provide independent third-party lab verification. NSF and IAPMO are primary U.S. certifying labs for filter performance. California-based Clearly Filtered has filters tested and certified by those bodies and is offering sitewide discounts. Clearly Filtered's pitcher employs activated carbon and other media to remove free chlorine, PFAS/PFOA, and heavy metals while leaving minerals and total dissolved solids intact; testing indicated a slight rise in TDS due to trace activated carbon.
Read at WIRED
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