They work for getting rid of that ‘hard’ water taste.
It might reduce lead and PFAS in some small way (leaving them trapped in the filter and slowly leeching into every glass you pour until you replace it), but it’s not really doing much for that. It’s not going to fix Flint Michigan’s water.
If you’re in a place with bad drinking water, first you should use one of those water purification tablets, then put the water through a Brita filter to get rid of the tablet’s taste.
They work for getting rid of that ‘hard’ water taste.
It might reduce lead and PFAS in some small way (leaving them trapped in the filter and slowly leeching into every glass you pour until you replace it), but it’s not really doing much for that. It’s not going to fix Flint Michigan’s water.
If you’re in a place with bad drinking water, first you should use one of those water purification tablets, then put the water through a Brita filter to get rid of the tablet’s taste.