Copper-Silver Ionization is the most effective method of controlling Legionella Bacteria & other waterborne pathogens, including Pseudomonas aeruginosa, Stenotrophomonas maltophilia, Acinetobacter baumannii, & mycobacterial species in hospital water systems. Numerous independent field evaluations worldwide have validated this fact.
More than 300 hospitals now use Copper-Silver Ionization as their Legionella control method. Many hospitals that were using hyperchlorination for Legionella control have converted to Copper-Silver Ionization because of failure to control Legionella & dramatically increased maintenance costs associated with chlorine induced corrosion.
The main advantages of Copper-Silver Ionization are its consistent effectiveness, ease of installation & maintenance. Ionization also has prolonged effectiveness which provides an added margin of safety. Plus, unlike chlorine & chlorine dioxide, the biocidal activity of Copper-Silver Ionization is not reduced by higher water temperatures.
The United States Environmental Protection Agency (EPA) has set a maximum level for drinking water of 1.3 mg/L for copper & 0.1 mg/L for silver.
Typical costs for a 250 bed hospital are $40,000 for an ionization system.
The effectiveness of Copper-Silver Ionization has also been shown in long-term care facilities, office buildings & apartment buildings.
Copper ion concentrations of just 0.2 – 0.4 mg/L and silver ion concentrations of just 0.02 – 0.04 mg/L have proven to be effective.
Copper-Silver Ionization is the best available technology for controlling Legionella in hospital warm water systems.