... , organic matter, colloid and so on 3. Active Carbon filter--Remove the color, free chloride, organic matter, harmful matter and ... Softener--reduce the hardness of water 4. Micron filter--prevent any deposition of large Particles, most of the bacteria, and viruses ... membrane, The accuracy is 5um, for holding back any large particulates such as large iron, dust, suspended matter, impurity. 5. High ...