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Drinking Water

Concerned about drinking water? NSF’s experts provide science-based information on water filters, water safety and bottled water.

Learn more about what certification means for these products and how they help you and your family with better living through science.

What Is NSF Certification?

Millions of people take the safety of their food, water and consumer products for granted. Why? Because of three letters: NSF. Our certification ensures products meet strict public health standards.
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