The accuracy of hollow fiber membrane filtration is 0.0 1 micron, and the filtered water can intercept most bacteria and viruses, and the purification effect is second only to that of reverse osmosis membrane. The filtration accuracy of ceramics depends on the quality of ceramics. (generally 0.2-0.5 micron) but it will never be as good as hollow fiber membrane. Ceramics can only filter some bacteria and big impurities. It is a common filter material in the market. But the two processes are completely different, and the filtration accuracy is ten times different from that of ten thousand. The cost of hollow fiber membrane is much higher.