PFAS water filtration solutions

PFAS (perfluoroalkyl and polyfluoroalkyl substances) are man-made chemicals used in products like waterproof fabrics, waxes, cleaning products, and non-stick surfaces. They’re often called “forever chemicals” because they take thousands of years to break down.

In April 2024, the EPA established the first-ever national, legally enforceable drinking water limits for PFAS — including a 4 parts-per-trillion (ppt) standard for PFOA and PFOS, the two most well-known forever chemicals, along with limits for three additional PFAS compounds and a mixture standard. In May 2026, the EPA proposed rules that would repeal the previously established limits for four of those compounds — PFHxS, PFNA, GenX (HFPO-DA), and certain PFAS mixtures — while extending the compliance deadline for PFOA and PFOS to as late as 2031 for eligible utilities. These proposed rules are not yet final. Regardless of where federal standards ultimately land, PFAS remain a widespread concern in drinking water — which is why Culligan’s certified filtration systems are certified to reduce Total PFAS, not just the currently regulated compounds.

While research is still ongoing, PFAS have been linked to many potential health issues. According to the U.S. Environmental Protection Agency, PFAS is estimated to be a contributing factor in 6,800 new cancer cases each year – and exposure to PFAS during pregnancy and early childhood can result in adverse health impacts. The Government of Canada has also found that PFAS can affect multiple organs and systems in the body including the liver, kidneys, thyroid, immune system, nervous system, and more.

No, the updated ruling is not related to any changes to determinations around safety of PFAS in drinking water. The EPA’s proposed rules would remove previously established federal limits for certain PFAS compounds and delay enforcement timelines for water utilities. PFAS remain widespread across North America, many utilities are still working toward compliance, and private well water is entirely outside EPA regulatory requirements. The most reliable protection is a filtration system independently certified for Total PFAS reduction, given the evolving regulatory environment and extended timelines for public utility compliance.

You can get a fast, accurate reading of your water’s PFAS levels with our low-cost, easy-to-use test kit. Simply request your kit online, use it to gather your sample, and mail it to our lab. Once we receive your kit, you’ll get results in just 10 business days.

Unfortunately, studies have shown that there is at least a chance of PFAS contamination in bottled water. DIY solutions like boiling your water or using a standard pitcher filter also don’t provide adequate protection from PFAS. That’s why we recommend scheduling a free consultation and considering a certified solution from Culligan to keep your water safe and clean.

While both systems protect your water from PFAS, where they’re installed and how much of your home’s water are treated varies. A whole home filter is installed where water enters your home, so all the water flowing through your home is treated for PFAS. A reverse osmosis system with Total Defense is connected to one tap, typically in your kitchen, and provides comprehensive protection from 90+ contaminants including PFAS.

Schedule a free consultation with your local Culligan experts. They’ll provide personalized recommendations for safeguarding your home’s water – and solving any other water challenges you’re experiencing – based on your needs and your budget.

Absolutely. Culligan’s RO systems reduce more than 90 contaminants like lead, arsenic, bacteria, and microplastics in your drinking water and can be customized with additional filters to combat specific concerns.