How many levels of purifier does filter water have?
Most of the water filters with primary filtration are of low grade water purification products, and each price ranges from 10 to 150 yuan.
the water purifier structure is different, the water purification effect is also different. Generally speaking, the primary filter water purifier has simple structure, mainly activated carbon, and its filtration capacity is limited. It can only be used as coarse filtration. The filtered water is best boiled and boiled
Floating water purifier is the function of filter water, heavy metals, bacteria and viruses are removed, it has higher filtering technology, usually five filters, the first stage is also known as the second grade PP cotton filter, granular activated carbon, the third level for the precision compression of activated carbon, the four level for reverse osmosis the membrane or ultrafiltration membrane, the five grade activated carbon.
Water purifier according to different purification principle and process, can be divided into many kinds. General RO (reverse osmosis filtration precision in 0.00001 micron), nanofiltration (0.001-0.00001 microns filtration) ultrafiltration membrane (filtration accuracy of 0.01-0.001 microns), fine filter (filter accuracy of 0.01 microns or less, such as ceramic filter, PP cotton filter etc.).
