3 ms·
Maybe? But how would you know, if the acceptable upper limit is defined in parts per trillion. You'd need lab grade instruments to even detect if the Brita filt
by lawn02 6y ago
Maybe? But how would you know, if the acceptable upper limit is defined in parts per trillion. You'd need lab grade instruments to even detect if the Brita filter is working to spec, which considering how cheap it is, is probably not something done in QC. I'd probably rely on ZeroWater for something like this but even then I would have doubts and assume my water has some unacceptable level of PFAS.
- corin_ 6y agoThe same way we know about lots of products, by the company and/or third parties testing them? The same way we "know" how much of a drug is in a pill bought from a pharmacy, or the % of a chemical in a bottle of cleaning stuff, or.... Obviously there can be cases of companies being misleading or completely fraudulent. But generally speaking you aren't testing every cosmetic, food, clothing etc. to be sure that they're made the way they claim, why would water filters be different? Legislate certification for them if needed, rather than worry about how hard it is for a single person to test at home.