Water Purification Solutions for Airlines
Potable water bought on board an airplane faces contamination during the many steps it takes traveling from the municipal source to the aircraft as well as from the hoses, nozzles, fittings or tanks on the plane itself. In the United States, responsibility for water quality up to the aircraft falls under the jurisdiction of the Food and Drug Administration (FDA); however aircraft are classified as public water systems and are subject to the requirements of the Safe Drinking Water Act (SDWA). The SDWA requires the Environmental Protection Agency (EPA) to set standards for drinking water quality to ensure that a safe and reliable supply of drinking water is provided to aircraft passengers and crew. The EPA sets legal limits on the levels of certain contaminants in drinking water which reflects both the level that protects human health and the level that water systems can achieve using the best available technology, as well as setting water-testing schedules and methods that water systems must follow. Other countries, such as the United Kingdom, Germany, Switzerland and the U.A.E. have followed the US example to establish acceptable contamination levels and aircraft water testing requirements.
Today, most of the world’s aircraft manufacturers require aircraft be delivered to airlines with water filtration systems in the galleys and lavatories, and most airlines continue the use of these filters once the aircraft goes into service due to increasing monitoring of water quality by government agencies and increased demands from the traveling public for better water quality on aircraft. Any water filter must meet the EPA Guide Standard Protocol for Microbiological Purifiers against bacteria, cysts, and viruses.
PTI Technologies has developed and independently certified water purification cartridges to EPA Purification Standards and NSF Certified Potable Water standards. These replacement filters come in several different ranges of performance from removal of some taste and odors all the way to the highest “purification” micron level (0.4 microns absolute) to provide great-tasting water while protecting against water-related disease (parasitic cysts, bacteria, and viruses) and are already in service with a number of airlines around the world.