NSF certifies Aquasana water filters that reduce PFOA and PFOS in drinking water


Milwaukee, Wis.—NSF International has announced it certified 17 Aquasana drinking water filter products that reduce perfluorooctanoic acid (PFOA) and perflurooctane sulfonate (PFOS) contaminants to below the health advisory levels set by the federal government.

The 17 Aquasana products are the first to earn NSF International certification for PFOA and PFOS.  The certified products are:

  • Aquasana two-stage countertop water filters, model numbers AQ4000, AQ4000B, AQ-4000B-Prem, AQ-4000P, AQ-4000P-STD , AQ-4000W, and AQ-4000W-Prem;
  • Aquasana one-stage under-counter water filter model number AQ5100;
  • Aquasana two-stage under-counter water filter model number AQ5200; and
  • Aquasana three-stage under-counter water filter model number AQ5300;
  • Aquasana Clean Water Machine models AQ-CWM-D-W, AQ-CWN-D-B, AQ-CWM-P-W, and AQ-CWM-P-B;
  • Aquasana whole-house reverse osmosis units, model numbers AQ-RO-3.55, AQ-RO-3.56, and AQ-RO-3.62.

PFOA and PFOS are chemicals resistant to water, grease, or staining and are used to manufacture carpets, clothing, cookware, fabrics for furniture, and paper packaging.  Exposure to these chemicals in drinking water over the 70 parts per trillion health advisory level may result in a number of adverse health effects including developmental effects to fetuses or to breastfed infants, cancer, liver damage, immune disorders, and thyroid disorders.

NSF International recently developed a test method and protocol to verify a water treatment device’s ability to reduce PFOA and PFOS levels in drinking water to below 70 parts per trillion, the health advisory level established by the U. S. Environmental Protection Agency in May 2016.

“Our mission is to deliver the healthiest water possible, and that means working with NSF International to say ahead of the increasing types of contaminants affecting our nation’s water supply by providing the very best filtration technology and performance,” Todd Bartee, chief executive officer of Aquasana, said.

“Aquasana is leading the charge as the first to offer families a premium product that is NSF certified to protect against PFOA contamination.”

To earn NSF International certification to the test method and protocol P473:  Drinking Water Treatment Units-PFOA and PFOS, water treatment systems, including filters, must undergo extensive testing to verify:

  • The contaminant reduction claims for PFOA and PFOS shown on the label are true;
  • The system does not add anything harmful to the water;
  • The system is structurally sound; and
  • The product labeling, advertising, and literature are not misleading.

Certified products must be retested periodically and manufacturing facilities must be inspected by NSF International every year to ensure the products continue to meet all requirements.

For more information regarding P473:  Drinking water treatment units-PFOA and PFOS, contact Tina Yerkes, general manager of filtration programs at NSF International.

Austin, Texas-based Aquasana designs, assembles and markets premium performance water treatment products, including whole-house treatment systems, drinking water solutions for at home and on-the-go, and shower filters.  Aquasana sells its products directly primarily to U.S. consumers through its website at www.aquasana.com, as well as through retail outlets and distributors. The company was acquired by A. O. Smith Corporation (NYSE:AOS) in August 2016.