Standard 401

NSF/ANSI Standard 401 Certified Filters


Effective drinking water systems such as Multipure’s Aqualuxe, Aquaperform, Aquaversa, and Aquamini protect your water and family against contaminants that can not only impact the taste and odor of the water, but also against contaminants that can cause physical harm, such as lead, mercury, or trihalomethanes. But there are also newer drinking water contaminants out there, whose presence in drinking water is becoming more well known, but whose long-term effects are not yet fully determined; these contaminants are classified as Emerging Compounds and Incidental Contaminants.

What is an Emerging Compound or Incidental Contaminants?

Emerging compounds and incidental contaminants – sometimes shortened to “emerging contaminants” – are drinking water contaminants whose presence are of increasing concern to the consumer public, but whose physiological effects based on the trace quantities found in drinking water are not yet understood. These contaminants include – but are not limited to – atenolol (a blood pressure medication), DEET (a pest repellent), metolachlor (an herbicide), naproxen (an NSAID), estrone (an artificial hormone), and bisphenol A (a compound used to make plastic). 

These emerging contaminants are not always found in water, but when they are present, it is in concentrations low enough that they are not officially considered a health concern. Their presence is the source of ongoing concern and study, and at Multipure, we understand that even if their health effects are currently inconclusive, it is in the consumer’s best interest for us to demonstrate proven, certified effectiveness at the reduction of these contaminants in drinking water. 

What an NSF 401 Water Filter Certification Means

NSF International developed NSF 401 as a direct means to test and certify filtration against emerging compounds and incidental contaminants. NSF 401 certified water filters have been rigorously tested and verified to meet their high standards for emerging compound and incidental contaminant reduction in drinking water. Multipure’s certified NSF 401 water filters have therefore proven to be effective at the treatment of these contaminants: atenolol, bisphenol A, carbamazepine, DEET, estrone, ibuprofen, linuron, meprobamate, metolachlor, naproxen, nonylphenol, phenytoin, TCEP, TCPP, and trimethoprim.

What Are the Benefits of an NSF 401 Certified Water Filter?

NSF is the premier global authority when it comes to developing and testing standards for water treatment products. NSF certifies drinking water filtration products for standards such as NSF 42 (Aesthetic Effects), NSF 53 (Health Effects), NSF 401 (Emerging Compounds/Incidental Contaminants), and NSF P231 (Microbiological Purifier). A product that is an NSF 401 certified water filter can be trusted to protect your water against emerging compounds and incidental contaminants.  

NSF has been certifying products since 1944, and is one of the most respected organizations in the world when it comes to food and beverage quality control. They are completely independent of any food and beverage company, making them the perfect third-party testing and certification authority for drinking water treatment products. Over the decades, they have successfully certified millions of products to verify their safety and efficacy as consumer products. Their reputation is trusted from local regulatory bodies all the way to federal and even international regulatory agencies.

The Multipure Advantage

Multipure’s NSF-certified drinking water systems and solid carbon block filters reduce contaminants in tap water, improving the taste and odor of the water, and improving the overall water quality – and all without significantly impacting the overall flow rate.

Multipure offers a selection of exceptional water filtration systems, replacement filters, and even whole house water filters to meet your contaminant reduction needs, whether a specific contaminant or a wide range of contaminants. We want you to feel completely confident in the effectiveness of our products to protect your drinking water. We take pride in our NSF Standard 401 certification and our other NSF certified water filters, and are more than happy to discuss them with you in more detail. For information on Multipure product specifications, performance data sheets, drinking water filters, and more, please visit our website. If you are interested in learning more about NSF Standard 401 or NSF standards in general, feel free to contact us now.