Compared to traditional filtration technologies that rely on a screen or filter to remove particles, reverse osmosis (RO) is a pressure-driven separation process that employs a semipermeable membrane and the principles of crossflow filtration. Reverse osmosis water treatment provides the finest level of filtration. The RO membrane acts as a barrier to all salts and inorganic molecules, as well as organic molecules with a molecular weight greater than approximately 100. It is therefore a highly effective process for removing contaminants such as:

Endotoxins/pyrogens.

Insecticides/pesticides.

Herbicides.

Antibiotics.

Nitrates.

Sugars.

Soluble salts.

Metal ions.