1. The ability of filtration is extremely good---0.9 microns are larger than 99.99% ; 0.5 microns are larger than 90%.
2. Long life-be able to repeat scrubbing the filter.
3. Effectively divide Cystosporidium ~ 100%.
4. Effectively divide Giardia Lambia ~ 100%.
5. Prevention of bacteria's further growth of bacteria ~ 100%