Charcoal filters are able to block the passage of sediment and suspended solids. They also absorb some gases, like chlorine and halomethanes. They do not remove dissolved solids, especially toxic materials. Although carbon filters do absorb some substances like chlorine and halomethanes, they can also become saturated and begin releasing these substances back into the water. It does an excellent job in reducing harmful pollutants.
Reverse osmosis enhances the oxygen content of water, giving it a fresh and lively taste.
Pure water and oxygen are allowed to pass through the unit, while rejecting harmful pollutants. Passage through the maze depends not on physical size, but on the specific bonding characteristics of each particle. Only water, oxygen molecules, and several beneficial trace minerals have the ability to make and break the required bonds as they move step by step through the reverse osmosis membrane maze. The origins of reverse osmosis can be found in nature. For example, a sea gull uses reverse osmosis to purify sea water to drink.