Developed in StockholmCleaner Water.
Cleaner Water.
Openly Measured.
PFAS are synthetic chemicals that do not break down in the environment. Sweden sets a limit of 4 ng/l for four of them in drinking water, one of the strictest in Europe. That limit applies to your water supplier. Our cartridges use an anion exchange fibre developed for reduction of PFAS and heavy metals.
What PFAS Are
Per- and polyfluoroalkyl substances (PFAS) are man-made chemicals that don't break down in the environment or our bodies.
4,700+
PFAS Compounds
23,000+
Sites Mapped in Europe
4 ng/l
Swedish PFAS4 Limit
Forever
Chemicals in Nature
Why Filterion?
We develop filtration technology in Stockholm with a mission to make clean water accessible to everyone.
Interactive PFAS Map
Search your address to discover PFAS contamination levels in your area. Data sourced from EPA, USGS, and European agencies.
Explore the MapDeveloped in Stockholm
Our cartridges are developed in Stockholm and manufactured to our specification. The filter medium is an anion exchange fibre.
Our Technology
Developed in Stockholm
Developed in Stockholm
Sweden's limit for PFAS4 in drinking water is 4 ng/l (LIVSFS 2022:12), among the strictest in Europe. The limit applies to drinking water producers. You can read your own municipality's most recent analysis on its website.
Our cartridges are developed in Stockholm. The filter medium is an anion exchange fibre in chloride form, with a polyacrylonitrile matrix.
Learn Our StoryReady for Cleaner Water?
Filter cartridges developed in Stockholm, with an anion exchange fibre for reduction of PFAS and heavy metals.