You answer:

I have no idea what you want to hear in response. I think if many people buy such filters, then they really make sense. And about whether ZeroWater filters remove PFAS you can find out go here http://purewaterblog.com/do-zerowater-filters-remove-pfas-the-definitive-answer/ Check it out and I think you will find answers to all your questions. There is a very detailed description of this issue and I think there will be no more questions.