What Does Brita Filter Out?

Quick answer: A standard Brita pitcher filter uses granular activated carbon and ion exchange to reduce chlorine taste and odor, along with certain metals such as copper, cadmium, mercury, and zinc. It also cuts down sediment, dirt, and rust that affect how your water tastes and looks. It is not designed to remove PFAS, most pesticides, trace pharmaceuticals, fluoride, bacteria, or viruses. Brita sells several filters with different certifications, so check your model's certification listing to see exactly what it covers.

What a Brita filter removes

Water being poured into a glass, illustrating what a Brita pitcher filters out

Credit where it is due: Brita pitchers are affordable, easy to find, and genuinely improve the taste of most tap water. For many households that is the whole goal, and a Brita does that job well. Plenty of people drink more water because a pitcher filter made it taste better, and that is a good thing.

The standard Brita pitcher filter uses granular activated carbon (loose carbon granules, sometimes described as carbon sand) together with an ion exchange resin. It is designed to reduce chlorine taste and odor as well as certain metals, including copper, cadmium, mercury, and zinc. It also reduces sediment, dirt, and rust that can affect the taste and appearance of your water.

Which Brita filter you have matters

Brita makes more than one filter, and they are not all certified for the same things. Claims you may have seen about Brita reducing lead or asbestos apply to specific models, not the whole lineup. In the US, filter performance claims are certified against NSF/ANSI standards: Standard 42 covers aesthetic effects such as chlorine taste and odor, Standard 53 covers health-related contaminants such as lead and mercury, and Standard 401 covers emerging compounds such as trace pharmaceuticals. Before you rely on any filter, ours included, pull up the certification listing for your exact model and see which contaminants it is actually certified to reduce.

What Brita does not filter out

By Brita's own materials, the standard pitcher filter is not designed to remove pesticides, trace pharmaceuticals, fluoride, bacteria, or viruses. PFAS, the so-called forever chemicals, are also outside the standard filter's scope. We cover that question in detail in Does Brita Filter PFAS?

How Brita performs on paper

Brita performance data sheet showing contaminant reduction percentages

Source: Brita's website

The performance data sheet above is worth reading closely. It shows chlorine reduction between 92% and 95%, and chlorine is one of the easier contaminants to pull out of water with carbon filtration. Note also that the standard Brita filter is tested to 40 gallons. At the average half gallon of drinking water per person per day, a family of four would go through 40 gallons in about 10 days.

For comparison, we test our own pitcher and dispenser filters to 150 gallons, and our pitcher filter averaged 98.6% chlorine removal across that full 150-gallon life. We have also tested against more than 200 tap water contaminants. You can read our pitcher filter test results here.

Granular activated carbon vs carbon block

Granular activated carbon compared with a solid carbon block filter

The main structural difference between a basic pitcher filter and a higher-end one is the form the carbon takes. In a granular activated carbon (GAC) filter, water flows quickly around loose granules. That short contact time is the core limitation: many dissolved contaminants simply do not spend enough time against the carbon to be adsorbed, so they pass through into your glass. When that happens, your body becomes the filter.

A carbon block filter compresses activated carbon into a dense solid block. Water is forced through the block more slowly and contacts far more carbon surface area on the way. That is why carbon block filters can be certified or tested for a wider range of contaminants, including chloramines, lead, mercury, volatile organic compounds, pesticides, and herbicides. Carbon block filters also tend to last longer between replacements than loose granular filters, which is worth factoring into the real cost per gallon.

What is in tap water in the first place

Person drinking a glass of filtered tap water

We have spent years studying US tap water quality, and the honest summary is this: tap water in the United States is generally safe to drink by regulatory standards, but contaminants that carry long-term health risks can still be present. Lead can leach into water from older pipes and fixtures. PFAS, pesticides, and other metals show up in many municipal supplies. The EPA sets legal limits for roughly 90 contaminants, which leaves many other compounds unregulated entirely. If anyone in your home is pregnant, immunocompromised, or managing a chronic health condition, that extra margin is worth thinking about.

The bottom line

If your goal is better tasting water at the lowest upfront price, a Brita does that, and it is better than no filter at all. If your goal is reducing specific health-related contaminants like lead or PFAS, choose a filter that is certified or independently tested for those exact contaminants, whatever the brand. Our Pure XP pitcher is independently tested to reduce lead, PFAS, chlorine, and over 99.9% of microplastics. The Pure XP Dispenser does the same job at a larger capacity for bigger households, and our filtered water bottle covers you away from home. Whichever direction you go, read the performance data sheet before you buy.

Sources

Brita, pitcher filter performance data sheet (brita.com)
U.S. Environmental Protection Agency, National Primary Drinking Water Regulations (epa.gov)
Epic Water Filters, Pure pitcher filter independent lab testing (PDF)

Brita is a registered trademark of Brita LP. Epic Water Filters is not affiliated with or endorsed by Brita. This article is for educational purposes and is not medical advice.

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