What is Reverse Osmosis Filtration?


The purpose of Reverse Osmosis filtration is to remove the dissolved contaminants that are small enough to pass through any previous filters. High pressure water is forced through a semi permeable membrane which removes the contaminants from the water. Clean, filtered water is then used and the remaining contaminated water, called brine, is discharged. This reverse osmosis process can remove up to 95% of dissolved particles and minerals from water depending on the pressure and temperature of the water. RO filtration can remove contaminants that as small as 0.0001 micron. A single micron is one millionth of a meter. A single human hair is approximately 25 microns in diameter! Because this type of filtration is intended to remove the smallest particles, it is used as a third filter typically after sediment and carbon filters have already removed the larger particles. Larger particles would plug the membrane immediately if it was used first in a multi stage filter system.

Check out our comprehensive offering of Point of Use Water Coolers that use Reverse Osmosis or contact our knowledgeable water cooler sales team to help you find the right water filtration system.