Whole House Water Filtration: frequently asked questions
These answers are general. For your situation, check the official sources listed below or ask a professional.
Do I need a whole house system?
It depends on the contaminant: some concerns only need drinking water treatment, others the whole home.
How do I know a filter works?
Look for certification to the NSF/ANSI standard for the contaminant.
Does a softener remove PFAS?
No. Softeners treat hardness; PFAS needs certified filtration such as activated carbon or reverse osmosis.