| Grade | Function |
| No.1: 5μm PP melt-blown Filter | Remove sediment, suspended substances, glue, rust, particles. |
| No.2: UDF (Granular Activated Carbon Filter) | Remove odor, residual chlorine, chloroform, meanwhile absorb general organics, dibromethane, chlorylene, etc. |
| No.3: 1μm PP pleated Filter Cartridge | Remove micron particles in water. |
| No. 4: RO Filter | Remove bacteria, virus, heat source, salt and other substances which influence health. |
| No.5: CTO (coconut shell activated carbon filter) | Deeply absorb odor, make the water much more sweet and delicious. |
Postscript:
Change-outs about water purifier filter cartridge.
- Water yield
When water yield is small and cannot meet normal requirement. That means filter cartridges inside are blocked, which should be cleaned to regain its normal flow rate, but if it is still small flow rate and water yield after cleanup, it is time to replace a new filter cartridge. - Flavor
When the water produced by water purifier and taste it like tap-water, that means activated carbon filter is no more able to remove residual chlorine in water, it has absorbed fully, it is time to replace UDF and CTO. - Service Life
The service life of RO filter normally is 1-2 years, if it exceeds 2 years then it is time to replace a new RO filter. Moreover, if filter cartridges rarely being replaced of the change-outs interval is too long, not only can the filtering effectiveness meet our anticipation but also it is harmful to water purifier operation itself.
