Drinking Water Filters, Testing and Treatment

In the last decade, interest in home water treatment products for drinking water household use has grown tremendously. Unfortunately, it isn't always easy to know whether a particular product is as safe and effective as the manufacturer claims at reducing various contaminants from your water supply.

To help address concerns about the safety and performance of products sold worldwide and marketed for treating household water supplies, NSF International developed several American National Standards covering a wide array of water treatment systems, including:

  • Filters (whole house, drinking water and shower units)
  • Reverse osmosis systems
  • Water softeners
  • Distillation systems
  • Ultraviolet disinfection products and microbiological purifiers

Select one of the links above to learn more about NSF’s certification and why it’s important for home water treatment systems.