Reverse Osmosis (RO) Rejection Table
Contaminant | Rejection Percentage | Contaminant | Rejection Percentage |
Aluminium | 96–98% | Magnesium | 93–98% |
Ammonium | 80–90% | Manganese | 96–98% |
Arsenic | 94–96% | Mercury | 94–97% |
Bacteria | 99+% | Nickel | 96–98% |
Bicarbonate | 95–96% | Nitrate | 90–95% |
Borate | 30–50% | Orthophosphate | 96–98% |
Boron | 50–70% | Phosphate | 95–98% |
Bromide | 90–95% | Polyphosphate | 96–98% |
Cadmium | 93–97% | Potassium | 92–96% |
Calcium | 93–98% | Pyrogen | 99+% |
Chloride | 92–95% | Radioactivity | 93–97% |
Chromate | 85–95% | Radium | 97% |
Copper | 96–98% | Selenium | 97% |
Cyanide | 85–95% | Silica | 80–90% |
Detergents | 97% | Silicate | 92–95% |
Ferrocyanide | 98–99% | Silver | 93–96% |
Fluoride | 92–95% | Soduim | 92–98% |
Hardness (Ca & Mg) | 93–97% | Sulfate | 96–98% |
Herbicides | 97% | Thiosulfate | 96–98% |
Insecticides | 97% | Viruses | 99+% |
Iron | 96–98% | Zinc | 96–98% |
Lead | 95–98% |
*The above estimated percent rejections are for reference only. The above listings are for the most common impurities found in water, however the Standard HyperLogic RO membranes may also remove other less common impurities found in water. Actual rejection will depend heavily on the exact chemistry, temperature, pressure, and TDS content of the feed water. Please call us at (888) 426-5644 or email us if you have any further questions.