The three-stage filter (patent No. 2262065) of PLA material (Poly Lactic Acid) was used to increase the water purification effect and the lifetime of the filter by 1.5 to 2 times compared to the existing stick type, reducing consumer costs. The second post-processing was used to confirm the pollution level of the filter through the window, and to provide the interior effect of the bathroom as well as the function and performance.

The minute impurity removal including the rust of the tap water and residual chlorine etc. The same time tap water use is saved by the micro hole of the watering board 30~40%.