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Is Annette's front filter really useful? Personal actual experience, filtering is true and effective. it may have been because the community is too old, many facilities are rusted, and the water flowing out is light red, that is, the kind of 'red water' we say every day ', this front filter is OK.
What's the matter with several microns in filtering accuracy? (Additional depending on the answer) NAS1638 is just a standard. As long as the filtering accuracy can meet the requirements you need.1000um equals 1mm.The liquid accuracy after filtering by the filter device is less than 3um or 5um. Impurities greater than 3um or 5um will remain in the filtration device.Different industries have different evaluation criteria. The filtration capacity in the water filtration and oil filtration equipment industry is the difference in filtration accuracy. Um, Micron, specifies the size of the filter particles, and the regulations of each industry are different. our filter industry has \ 'purpose \', units, and um for the accuracy of the filter material.
