My town's water system had PFAS and PFOS levels below that of the EPA. But the MA dept of public health has recently published a limit about a quarter of that - and we were over that limit.

So I went off on a search for a filtration system that wouldn't break the bank. Reverse Osmosis (RO) will do the trick, but they're expensive. So will distillation, but that uses a lot of energy.

After looking at an absurd number of filter data sheets, I landed on Epic Pure. There are undersink systems, but we opted for the pitcher filter

https://www.epicwaterfilters.com/collections/pitchers/products/epic-pure-water-filter-pitcher

We're a household of two, and a single filter lasts about 6 months. We drink a lot of water - and I use filtered water for any cooking where the end result absorbs cooking water (e.g. rice, beans). Our town water is otherwise quite good; other water quality might use up filters at a different speed (YMMV)

Hope this saves somebody the pain of trying to figure WQ data sheets (unless that's your thing).

Also, EPA,(and now MA state) are in parts per billion (PPB), data sheets are typically in miligram per liter (mg/l). Here's a 'cheat': 1 mg/l = 1 PPB; yep just a different way to express the exact same thing. You're welcome.