Formally, reverse osmosis is a water purify process which applies high pressure in excess of the osmotic pressure to water in order to remove tiny molecules and various type of ions by membranes.

Water from a high concentration region is forced through a selective membrane to a low concentration region. The membrane used in reverse osmosis contains tiny pores which water is permeable. The small pores of this membrane are restrictive to such inorganic substances as heavy metal compound, salt and other natural minerals which generally have larger molecular sizes than water.  These pores are also restrictive to bacteria and disease-causing pathogens.

It is certain that the product water is pure and safe from contaminants. By reversed osmosis, product water is purified up to 99%.

Our under sink unit has 4 steps of reverse osmosis process as follows;

1.  Sediment Filter – To remove large particles with 5-micron polypropylene filter

2.  Pre-carbon Filer – To remove chlorine which toxic to membrane. And also reduce odors, colors, and taste.

3.  RO membrane – To remove contaminants larger than 0.0001 micron.

4.  Post-carbon filter – a final step remove odors and undesirable gas.