Zero Water is a water filtration company founded in 2005 that produces water filtration products, most notably their 5-stage water filtration pitcher. Their filtration system uses a mix of carbon filtration, ion exchange, and oxidation reduction to remove contaminants and dissolved solids from tap water.
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A key feature of Zero Water’s pitchers is the included TDS meter that allows users to test the total dissolved solids (TDS) in their filtered water, with Zero Water claiming their system can reduce TDS levels to 0 ppm. Their patented Ion Exchange Filter is designed to attract positively charged ions like calcium and magnesium and exchange them for hydrogen and hydroxide ions, which results in highly purified water. While traditional filters use mesh screens, Zero Water relies on ion exchange and activated carbon for thorough filtration. Their products have received praise for their ability to purify tap water and closely replicate the purity of distilled water, which is useful for applications like coffee brewing where mineral-free water is desired. However, some criticize that removing TDS and minerals from water can give it a flat taste versus tap water. Overall, Zero Water aims to provide cleaner, purer drinking water by significantly reducing contaminants and dissolved solids using their specialized ion exchange filtration system.