Why Buy a Countertop Water Filter? Here’s What They Actually Remove and How to Choose the Right One

If you’ve been meaning to look into a countertop water filter but haven’t known where to start, you’re not alone. With new federal data showing 176 million Americans drink tap water that has tested positive for PFAS, the category has gotten a lot more complicated than it used to be.

The good news is that picking the right filter isn’t as overwhelming as it seems — you just need to know what’s in your water before you decide what to do about it. Here’s a step-by-step breakdown.

Why More People Are Rethinking Their Tap Water Right Now

PFAS — per- and polyfluoroalkyl substances — are synthetic chemicals that don’t break down in the environment or the human body, which is why they’re called “forever chemicals.” They’ve been used since the 1940s in everyday products like nonstick cookware, food packaging and stain-resistant fabrics, and they’ve been making their way into water supplies ever since.

The EPA has linked PFAS exposure to a range of health concerns including certain cancers, immune suppression and hormonal disruption. At the same time, federal limits on four of the six originally regulated PFAS compounds have been rolled back, leaving consumers with less regulatory protection than they had a year ago. That gap is a big part of why so many people are looking for their own solutions.

Step One: Check What’s Actually in Your Water Before You Buy Anything

The most important thing you can do before spending money on a filter is find out what’s actually coming out of your tap. Two households a few miles apart can have very different contaminant profiles depending on their water source, local infrastructure and proximity to industrial sites.

Start with the EWG Tap Water Database — enter your zip code and you’ll get a breakdown of detected contaminants compared against both federal legal limits and stricter health-based guidelines. You can also request your utility’s annual Consumer Confidence Report directly. Pay attention to anything flagged above health guidelines, not just legal limits. Those two thresholds are often very different numbers.

New EPA data from March 2026 puts the number of Americans drinking PFAS-positive tap water at 176 million, and a 2023 USGS study found detectable PFAS in 45% of U.S. tap water samples. Risk is higher near military bases, airports, industrial facilities and agricultural zones — but confirmed contamination exists in all 50 states.

Step Two: Understand What Your Current Filter Does and Doesn’t Remove

If you already own a Brita or similar pitcher, here’s what it’s actually doing. A standard carbon pitcher removes chlorine, improves taste and odor and reduces some heavy metals like cadmium, mercury and copper. It doesn’t remove PFAS, lead (in the standard filter) or nitrates.

Brita’s Elite filter adds lead reduction and some emerging contaminants but still doesn’t address PFAS. This isn’t a knock on Brita specifically — basic carbon filtration technology has real limits, and PFAS removal isn’t something it was designed to do. A lot of people assume “filtered water” means comprehensively treated water. It usually doesn’t.

Step Three: Match the Contamination to the Right Filtration Technology

Once you know what’s in your water, you can match it to a filter that actually addresses it:

• Basic carbon pitchers (Brita standard, PUR): Taste and odor improvement, some heavy metal reduction. If your water report is clean and you mainly want better-tasting water, this may be enough.
• Advanced pitchers (Brita Elite, PUR Plus, ZeroWater, Clearly Filtered): Add lead reduction and up to 200-plus contaminants depending on the model. Some are certified for PFAS reduction; many aren’t. Always check before assuming.
• Countertop dispensers (Brita Hub): Address 70-plus contaminants including PFAS, PFOS, lead and pharmaceuticals with no installation required.
• Countertop reverse osmosis (AquaTru): The most comprehensive no-install option. Reduces PFAS to non-detectable levels in certified testing and requires no plumbing or drilling.

Step Four: Check the Certifications Before You Spend a Dollar

Filter marketing can be misleading. A product can be “certified” without being certified for the contaminant you care about. Here’s what the NSF labels actually mean:

• NSF/ANSI 42: Taste and odor only. Not a health filter.
• NSF/ANSI 53: Health contaminants including lead and certain PFAS.
• NSF/ANSI 58: Reverse osmosis systems.
• NSF P473: PFAS-specific certification.

If a product only carries NSF/ANSI 42, it’s not removing health contaminants regardless of what the packaging says. Match the certification to the contaminant in your water report.

Step Five: Pick the Right Format for Your Home and Budget

If you rent or just don’t want the hassle of installation, you’ve got solid options. Countertop RO units and advanced pitchers require no plumbing, no drilling and no landlord approval — and they’re portable, so they move with you.

For anyone with confirmed PFAS or lead in their water report, a countertop RO is generally where meaningful protection starts. Consumer Reports’ water filter pitcher ratings are a useful benchmark for comparing pitchers side by side, but won’t tell you whether a pitcher is the right choice at all. That’s what your water report is for.

The right filter is the one matched to what’s actually coming out of your tap. Start there and the rest of the decision gets a lot simpler.

This article was created by content specialists using various tools, including AI.

This story was originally published May 13, 2026 at 3:15 PM with the headline "Why Buy a Countertop Water Filter? Here’s What They Actually Remove and How to Choose the Right One."