What is NSF (National Sanitation Foundation)?
The NSF (National Sanitation Foundation) is a non-profit organization established in 1944, that researches and educates the public on various environmental and health matters and provides product standards. Since 1968, the NSF has set the standard regarding water purifiers in order to test for various aspects including harmful and/or polluted substances based on EPA standards. The water purifier standard also includes product safety, design, structure, operation, and trademark.