When purchasing a household water purifier, you must first buy a product that obtains the sanitation license for the wading product, that is, the water purifier product must be approved by the health administrative department, and the water quality must comply with the corresponding sanitary standards or specifications. In addition, before choosing a household water purifier, you must also understand the water treatment materials used in the product, in order to choose the right product according to your needs. According to Ying Liang, there are currently seven types of water treatment materials commonly used in household water purifiers: 1. Non-woven fabric and PP cotton: It can remove particulate impurities, colloids and reduce the turbidity of water. 2. Activated carbon: It can adsorb small molecular organic substances, residual chlorine, disinfection by-products of tap water, heterochromatic, odor, heavy metals and other toxic and harmful substances in water, and improve the taste of water. 3. Cationic resin: It can remove heavy metals and excess calcium and magnesium ions in water to improve the taste. 4. Ultrafiltration membrane: The filtration precision is 0.1 micron, which can remove particulate suspended matter and some viruses from organic matter, impurities, colloids and bacteria. 5. Nanofiltration membrane (NF membrane): The filtration precision is 0.01-0.001 micrometer, which can remove organic matter, bacteria and virus, selectively remove heavy metal ions, calcium and magnesium ions, and retain some minerals and trace elements. 6. Reverse osmosis membrane (RO membrane): The filtration precision is 0.001-0.0001 micrometer, which can remove all substances in water. 7. High-purity copper and zinc particles (KDF): It can remove 99% of chlorine and soluble metals in water, and has a significant effect on controlling the growth of bacteria and algae. Concerned about surprises Label: Read the water treatment materials before purchasing a household water purifier Previous: Four reasons for installing water purifiers Next: Where are the advantages of ball valves?
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