The function of a water purifier is to remove floating objects, heavy metals, bacteria, viruses, residual chlorine, sediment, rust, microorganisms, etc. from water. It has high-precision filtration technology. The five stage filtration technology of water purifiers used in households includes the first stage of filter element, also known as PP cotton filter element (PPF), the second stage of granular activated carbon (UDF) filter element, the third stage of precision compressed activated carbon (CTO) filter element, the fourth stage of reverse osmosis membrane or ultrafiltration membrane, and the fifth stage of post activated carbon (small T33). Water purifiers are not only suitable for areas with severe tap water pollution, but also can filter out residual chlorine in conventional tap water and improve the water outlet feel.
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