① FB2 : 6 steps of Carbon Block Compound Filter

② FU3 : 8 steps of Advanced Ultra Hollow Membrane Purification Filter

③ FNC : 7 steps of NANO Silver Carbon Block Compound Filter

The effectiveness of the filtration is determined by the valid filtration capacity verified by a testing institution, and these products have a valid water capacity of 3,600 liters for approximately 6 months. It is recommended to use for approximately 6 months and a voice guide will inform you when it is time to replace the filter.