More detail
Many consumers mistakenly believe any carbon filter makes water perfectly pure. Standard activated carbon can trap some chemicals, but PFAS are extremely difficult to remove. Without specific certification, PFAS will flow right through a basic pitcher filter.
To protect your drinking water, you need an under-sink Reverse Osmosis (RO) system (certified to NSF/ANSI 58) or a high-capacity carbon system certified to NSF/ANSI 53/P473.
Your matched installer can recommend systems that have independent, third-party verification for the contaminants present in your specific water supply.