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ZeroWater is the sole pour-through water filter that holds certification for reducing Lead, Chromium, and PFOA/PFOS. The test results are based on the pour-through devices' NSF/ANSI testing standards conducted by the independent ISO 17025 laboratory, Quality Filter Testing Laboratory, LLC, situated in Williamstown, New Jersey, and recognized by IAPMO.

To evaluate the effectiveness of ZeroWater's 5-stage filter and Brita's Maxtra Filter, the products underwent testing in accordance with their recommended daily usage of 7.5 liters of filtration per day. The test results represent an averaged calculation of each filter's performance in filtering drinking water at both pH levels of 6.5 and 8.5.

ZeroWater's commitment to quality and its ability to reduce harmful substances sets it apart as a reliable choice for clean drinking water. With its certified filtration capabilities and rigorous testing standards, ZeroWater provides consumers with peace of mind and reassurance in their quest for safe and purified water.