There is currently no established safe level for lifetime exposure to the carcinogen chromium-6 in tap water. All households at risk of chromium contamination should take steps to purify their water. Aquasana’s OptimH2O Reverse Osmosis + Claryum Systems are NSF Certified to reduce at least 97% of hexavalent chromium (chromium-6) for the life of the filtration system. To ensure performance, claims are backed by rigorous testing. Consumers should only consider water filters Certified by NSF to the NSF/ANSI 58 Standard for removal of chromium-6.
Chromium-6 has been making news since the 1990s when Erin Brockovich worked with attorneys to settle class-action litigation against Cr-6 polluters. Despite the efforts of advocates touting scientific research into the health impacts of even the tiniest amounts of chromium, the Environmental Protection Agency (EPA) has not published health goals for lifetime exposure to this cancer-causing toxin. In fact, not all public water systems are even required to monitor for chromium-6 in the water. If you think your home water supply has some level of chromium-6, we recommend that you take steps to protect yourself.
Aquasana launched the OptimH2O Reverse Osmosis + Claryum systems to give our customers peace of mind when drinking, cooking, and serving water at home. Our innovative approach to water filtration takes out bad contaminants and puts back in the healthy minerals that your body needs. The Aquasana OptimH2O combination of Claryum filtration with reverse osmosis in one product gives you the highest level of filtration we offer. Take a look at Aquasana’s Performance Data Sheet, and you will see that this system removes over 70 different contaminants including 97% of chromium-6. But don’t take our word for it, just ask NSF.
NSF International is an organization that develops public health standards and provides certification programs with a mission that includes helping to protect the world’s water. You may see water filtration products that are tested and certified by other organizations using NSF Standards. However, products certified by other organizations may not pass the rigorous, full-system contaminant reduction, structural integrity, and extraction testing required to earn NSF Certification. Aquasana’s OptimH2O Reverse Osmosis + Claryum systems proudly display the NSF Certified logo ensuring that you will get the contaminant reduction that you expect.
Source: https://www.epa.gov/dwstandardsregulations/chromium-drinking-water