The best water filters for PFAS

Every filter here has a PFAS claim on a certifier's own listing: NSF, WQA or IAPMO. A claim on the box or the maker's website doesn't count until a listing shows it. TapBuff has not tested these filters. They are ranked by how many PFAS the listing covers, then by what each costs over five years at the maker's list price, for a household of three using 3 gallons a day for drinking and cooking.

The picks at a glance

Filter	Pick	Certified for	Five years
LARQ Under Sink Water Filter	Best for PFAS	PFOA, PFOS, PFHxS and 3 more	$1,090
Ninja HydraSense Countertop Water Filtration System (WF1001)	Best for PFAS and lead	Lead, PFOA, PFOS and 6 more	$2,050
Express Water StreamLine Direct Connect System (USC001)	Best under-sink with lead	Lead, PFOA, PFOS and 1 more	$527
Waterdrop G3P600	Best reverse osmosis	Lead, PFOA, PFOS and 2 more	$1,149
AquaTru Classic (AT2000)	Best countertop reverse osmosis	Lead, Copper, PFOA and 8 more	$1,344
PUR PLUS Faucet Filtration System, Horizontal (PFM400H)	Best faucet filter	Lead, PFOA, PFOS and 5 more	—
Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)	Best pitcher	Lead, Copper, PFOA and 8 more	$5,103
Aquasana HealthShield (WH-HS)	Best whole-house system	PFOA, PFOS, PFHxS and 2 more	$4,901+
Five-year cost for a household of 3 at the makers’ list prices, cartridges included; whole-house systems at 80 gallons each a day. A plus sign means a part due in those five years has no published price.

Check your water first

EPA's advice starts with your water, not a product. If PFAS were not measured in it, or were measured below federal limits, EPA says a filter "may not be useful to you."

Most people on public water can find out. Under EPA's UCMR 5 program, nearly every utility serving more than 3,300 people tested for 29 PFAS. TapBuff shows each utility's results against EPA's limits, and lists every utility above them.

How the picks are ranked

PFAS covered, first. Listings carry two kinds of PFAS claim. A PFOA/PFOS claim covers those two chemicals. A Total PFAS claim covers seven: PFOA, PFOS, PFHxS, PFNA, PFHpA, PFBS and PFDA, as NSF's listings define it.

That difference matters because of what EPA regulates. Its 2024 rule set legal limits of 4.0 ppt for PFOA and PFOS, and limits for PFHxS, PFNA and GenX and for mixtures of those three with PFBS. In May 2026 EPA proposed rescinding all but the PFOA and PFOS limits. Nothing is final yet. A Total PFAS claim covers more of that list. No listing TapBuff has read covers GenX.

Then five-year cost. The price of the filter is the small part. Makers rate a cartridge in gallons and in months, and you replace it at whichever runs out first. Each five-year figure is the maker's list price for the system plus every replacement due in five years. Where a maker publishes no price, there is no figure, rather than a guess.

What no listing promises. NSF says a certified PFAS claim means the filter reduced PFAS below 20 ppt in testing. EPA's limit for PFOA and PFOS is 4.0 ppt, and EPA said in April 2024 that certifications "do not yet indicate that a filter will remove PFAS down to the levels EPA has now set." It still advises that reducing PFAS in your water limits your exposure. A listed claim is the best evidence available, not a promise of a number.

The picks

Best for PFAS

Under-sink carbon

LARQ Under Sink Water Filter

Best for covering the most PFAS at the kitchen sink

Strengths

• Total PFAS claim under NSF/ANSI 53 on NSF's listing: seven PFAS, including PFOA, PFOS, PFHxS and PFNA
• The lowest five-year cost of any filter here with a Total PFAS claim
• One filter every six months, rated 1,453 gallons

Trade-offs

• No lead claim on any listing. LARQ's lead figures come from independent testing, not certification, and LARQ says so
• No other health claims. Its NSF/ANSI 42 claims are chlorine, taste and odor, and particulates
• $99 a filter at the one-time price

Best for PFAS and lead

Countertop

Ninja HydraSense Countertop Water Filtration System (WF1001)

Best for Total PFAS and lead with nothing to install

Strengths

• Total PFAS and lead under NSF/ANSI 53 on IAPMO's listing, with mercury, cadmium and VOCs
• Chlorine, chloramine and Class I particulates under NSF/ANSI 42, and 14 claims under NSF/ANSI 401
• Sits on the counter. No plumbing

Trade-offs

• Filter rated 120 gallons or six months: at 3 gallons a day, a new one about every 40 days, at $39.99
• Ninja sells it as the WF1003 with a travel bottle; the Amazon page is the WF1001 unit alone

Best under-sink with lead

Under-sink carbon

Express Water StreamLine Direct Connect System (USC001)

Best for PFOA, PFOS and lead for the least over five years

Strengths

• PFOA/PFOS and lead under NSF/ANSI 53 on IAPMO's listing, with cysts, asbestos and atrazine
• The lowest five-year cost of any filter here with both a PFAS claim and a lead claim
• Connects to your existing faucet. One filter, rated 1,500 gallons or six months, at $48.99

Trade-offs

• PFOA and PFOS only: no Total PFAS claim, so PFHxS and PFNA are not covered
• Feeds your own faucet, so dishwater and rinse water go through it too: above about 8 gallons a day it runs out before six months
• No chloramine, mercury or VOC claim. The Brondell Coral UC300 adds those for more

Best reverse osmosis

Under-sink reverse osmosis

Waterdrop G3P600

Best for PFOA and PFOS plus fluoride and lead, under the sink

Strengths

• Reverse osmosis claims under NSF/ANSI 58 for fluoride, lead, TDS, barium, cadmium and radium, on IAPMO's listing
• PFOA/PFOS claim under NSF/ANSI 53 for its carbon block filter
• Tankless, so there is no storage tank to fit under the sink

Trade-offs

• PFOA and PFOS only, and the claim is for the carbon block, not the membrane
• Sends water down the drain: Waterdrop rates it at 2 gallons filtered for each gallon to drain
• Three filters on three schedules, from six months to two years

Best countertop reverse osmosis

Countertop reverse osmosis

AquaTru Classic (AT2000)

Best for renters who also need nitrate or arsenic covered

Strengths

• Arsenic, nitrate, fluoride, lead, copper and chromium under NSF/ANSI 58, and PFOA and PFOS under 53, on IAPMO's listing
• Sits on the counter and is filled by hand. No plumbing and no drain line

Trade-offs

• PFOA and PFOS only, and those claims come from the VOC carbon filter, so that is the one to replace on time
• The water it rejects collects in the tap-water tank and has to be poured out
• Three filters, rated six months to two years; at 3 gallons a day they come due every 6 to 13 months

Best faucet filter

Faucet mount

PUR PLUS Faucet Filtration System, Horizontal (PFM400H)

Best for Total PFAS and lead with nothing to install under the sink

Strengths

• Total PFAS claim under NSF/ANSI 53 on IAPMO's listing, with lead, mercury and VOCs
• Lead claim under NSF/ANSI 53 on NSF's, WQA's and IAPMO's listings

Trade-offs

• Total PFAS is on IAPMO's listing only. NSF's and WQA's listings for the same filter don't show it
• PUR publishes no prices, so its five-year cost can't be totaled
• Filter rated 100 gallons or three months: at 3 gallons a day, a new one about every 33 days

Best pitcher

Pitcher

Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)

Best for Total PFAS and lead in a pitcher

Strengths

• Total PFAS and lead under NSF/ANSI 53 on IAPMO's listing, with mercury, copper and chromium-6
• IAPMO also lists fluoride and nitrate claims for it under NSF/ANSI 53
• $34.99, the lowest list price of any filter here

Trade-offs

• Filter certified for 20 gallons: at 3 gallons a day, a new one about every week
• Filters come only in packs of two or more, so it is one of the most expensive filters here to keep running
• Not the older ZeroWater 10 Cup Pitcher, whose listing covers PFOA and PFOS but not Total PFAS

Best whole-house system

Carbon filter

Aquasana HealthShield (WH-HS)

Best for treating every tap in the house

Strengths

• Five PFAS under NSF/ANSI 53 on WQA's listing: PFOA, PFOS, PFHxS, PFNA and PFHpA
• The only whole-house system TapBuff tracks with a PFAS claim on a listing
• No drain line

Trade-offs

• EPA says showering and washing dishes in water with PFAS are unlikely to significantly increase your risk, so most of what it treats is not the water that matters most
• No published price for the replacement tank, which a household of three would need about twice in five years
• Needs a 120-volt outlet, and WQA's listing says aluminum must be reduced before treatment

Every filter TapBuff tracks with a PFAS claim

The picks come from this table. It lists every filter in TapBuff's catalog whose listing covers a PFAS in EPA's 2024 rule, and it changes as filters are added.

Filters with a PFAS claim on their listing

Filter	Its listing covers	Listing	Five years
LARQ Under Sink Water FilterUnder-sink carbon	PFOA, PFOS, PFHxS, PFNA, PFBS	NSF 53	$1,090
Ninja HydraSense Countertop Water Filtration System (WF1001)Countertop	PFOA, PFOS, PFHxS, PFNA, PFBS	IAPMO 53	$2,050
Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)Pitcher	PFOA, PFOS, PFHxS, PFNA, PFBS	IAPMO 53	$5,103
Culligan MaxClear Scout Gravity Water Filter (MCS701P)Dispenser	PFOA, PFOS, PFHxS, PFNA, PFBS	IAPMO 53	$8,840
PUR PLUS 11-Cup Pitcher (PPT111W)Pitcher	PFOA, PFOS, PFHxS, PFNA, PFBS	IAPMO 53	No price
PUR PLUS Faucet Filtration System, Horizontal (PFM400H)Faucet mount	PFOA, PFOS, PFHxS, PFNA, PFBS	IAPMO 53	No price
Aquasana HealthShield (WH-HS)Whole house, carbon filter	PFOA, PFOS, PFHxS, PFNA	WQA 53	$4,901+
Express Water StreamLine Direct Connect System (USC001)Under-sink carbon	PFOA, PFOS	IAPMO 53	$527
Brondell Coral UC300 Under Sink Water Filtration SystemUnder-sink carbon	PFOA, PFOS	WQA 53	$900
A.O. Smith 2-Stage Under Sink Water Filter (AO-US-200)Under-sink carbon	PFOA, PFOS	WQA 53	$980
Aquasana Claryum 2-Stage (AQ-6200)Under-sink carbon	PFOA, PFOS	WQA 53	$990
Aquasana Clean Water Machine (AQ-CWM2)Countertop	PFOA, PFOS	WQA 53	$1,061
Aquasana Claryum Direct Connect (AQ-MF-1)Under-sink carbon	PFOA, PFOS	IAPMO 53	$1,078
Waterdrop G3P600Under-sink reverse osmosis	PFOA, PFOS	IAPMO 53	$1,149
Aquasana Claryum 3-Stage Max Flow (AQ-6300M)Under-sink carbon	PFOA, PFOS	WQA 53	$1,278
AquaTru Classic (AT2000)Countertop reverse osmosis	PFOA, PFOS	IAPMO 53	$1,344
Waterdrop G3P800Under-sink reverse osmosis	PFOA, PFOS	IAPMO 53	$1,669
Brondell Capella RC250 Reverse Osmosis SystemUnder-sink reverse osmosis	PFOA, PFOS	WQA 53	$1,950
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)Under-sink reverse osmosis	PFOA, PFOS	WQA 53	$2,917
ZeroWater 10 Cup Pitcher (ZP-010)Pitcher	PFOA, PFOS	IAPMO 53	$7,334
Ranked by how many of these the listing covers, then five-year cost: a household of 3 at the makers’ list prices, cartridges included. “No price” means the maker publishes none. A plus sign means a part due in those five years has no published price. No filter here is certified for HFPO-DA (GenX). Listings checked between Oct. 4, 2026 and Oct. 20, 2026.

Pitchers cost the least to buy and the most to keep

The Culligan pitcher with ZeroWater technology costs $34.99 and carries Total PFAS and lead claims, but its filter is certified for 20 gallons. At 3 gallons a day that is a new filter about every week, and $5,103 over five years, against $1,090 for the LARQ. The older ZeroWater 10 Cup Pitcher's filter is certified for 15 gallons, which comes to $7,334.

Gravity filters run the same way. The Culligan MaxClear carries Total PFAS and lead claims, but each element is rated for 50 gallons, which comes to $8,840 over five years.

A pitcher still makes sense where nothing can be installed, or for a household that drinks little tap water. The best water filter pitchers compares every pitcher TapBuff tracks, by its listings and five-year cost, and the best under-sink water filters does the same under the sink. Put in your own household's use in the five-year cost calculator, which starts with these four.

Kitchen tap or whole house?

EPA says only a small amount of PFAS gets into the body through skin, so "showering, bathing, and washing dishes in water containing PFAS are unlikely to significantly increase your risk." The water that matters is the water you drink and cook with, which is what every pick but one treats.

A whole-house system is for a household that wants every tap treated anyway. The Aquasana HealthShield is the only one TapBuff tracks with a PFAS claim on a listing. It costs $4,901+ over five years before its replacement tanks, which have no published price.

Filters with no PFAS claim on a listing

EPA's fact sheet calls certification by an independent body the assurance that a filter works as its maker says. These filters don't have that for PFAS:

• Brita Elite filter. WQA lists it in the Tahoe pitcher for lead and 12 other claims under NSF/ANSI 53, and no PFAS claim.
• LifeStraw Home. LifeStraw advertises PFOA and PFOS reduction and cites NSF P473, a retired protocol. WQA lists the pitcher for lead and other claims under NSF/ANSI 53, and no PFAS claim.
• Clearly Filtered pitcher. Certified to NSF/ANSI 42 for chlorine, taste and odor only. The maker's PFAS figures come from independent lab testing, not certification.
• Multipure Aquaversa. Lead and VOC claims under NSF/ANSI 53, but no PFOA/PFOS claim. NSF lists PFOA and PFOS claims for some other Multipure models.
• SpringWell CF1. SpringWell says this whole-house filter reduces PFAS, including PFOA and PFOS. TapBuff found no listing for it at NSF, WQA or IAPMO.

Replace it on schedule

EPA: "Not replacing a filter by the manufacturer's recommend schedule can increase your risk of exposure to PFAS." A spent filter stops reducing anything. Each pick above names the rating that sets its schedule, and the five-year cost calculator works out how often that is for your household.