How Affinity Filtration Technology Works | Clearly Filtered

SUPERIOR TECHNOLOGY FOR SUPERIOR PROTECTION

OUR TECHNOLOGY

Affinity® Filtration Technology

The proprietary technology that powers our breakthrough water filters is proven to protect you from up to 77x more dangers than typical store-bought filters, so you and your loved ones can trust every drop.

Meet the most effective filtration media on the planet.

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77x

More Contaminants

Affinity Filtration targets 77x more contaminants than mainstream filters

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2.5x

Longer Filter Life Than Store-Bought

Our pitcher filters are good for 100 gallons, which last an average family about 2 months.

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NSF

Certified & Independently Tested

Our Filtered Water Pitcher is NSF certified — medical-grade & 100% free of BPS/BPA, phthalates, and EA activity.

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THE DIFFERENCE IS CLEAR

Unlike typical filters, Affinity® Filtration uses a unique proprietary blend of advanced filtration media that can remove up to 99.99% of up to 386+ contaminants.

Transform any sink or fridge into the world's best water filter. Stay safe at home and on-the-go with our best-selling pitcher and reusable bottles. And stock up on replacement filters to keep the clean water flowing.

STEP 01STEP 02STEP 03

Step One: Woven Mesh Screen

As contaminants move through a filter built with Affinity Filtration Technology, they have to travel through many twists and turns, as opposed to traveling in a straight line. This provides more time for the water to contact the filter, which gives the contaminant magnets more time to do their work. The longer the filtration time, the more thorough the contaminant protection. When it comes to water filtration, slow is a good thing.

Step Two: 6 Advanced Medias

Common filtration materials are limited to catching contaminants of specific sizes. Our innovative blend of advanced materials work harmoniously together to capture contaminants big and small by ionically binding to them at microscopic levels.

Step Three: 360-Degree Protection

Goes beyond taste and smell to protect your health by targeting hidden dangers linked to cancer, bone disease, reproductive issues, and more.

PROVEN TO PERFORM IN THE LAB

View Our Latest Performance Data

The best way to assess the level of protection any filter provides is by looking at the number of contaminants the filter targets, as well as each contaminant's associated removal rate. Tap below to view our latest lab results, so you can see the complete list of contaminants that our Affinity® Filtration Technology targets, as well as individual removal rates.

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Enjoy Proven Protection for Your Family, Without Limitations

Captures contaminants, not minerals

Experience the only filtration technology on the planet proven to protect you from up to 386+ dangerous contaminants, without targeting healthy minerals.

Complete convenience, whether at home or on the go

Our point-of-use filtration systems allow you to experience Affinity® Filtration Technology at-home and on-the-go, so you never have to go back to dirty water again.

Proven to Perform

Not only are our filters independently tested by third-party labs to guarantee your protection, we share the results to give you complete confidence in your water.

Family-Friendly Capacity

PROTECTION FOR EVERY APPLICATION

Shop by Use

\ \ Filtered Pitcher](/content/collections/pitchers/index.html) \ \ Fridge System](/content/collections/fridge-filters/index.html) \ \ Sink System](/content/collections/under-sink-system/index.html) \ \ Filtered Bottle](/content/collections/bottles/index.html)

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458 Reviews

3-Stage Under the Sink Water Filter System

Affinity Filtration Technology

From$495.00

1,994 Reviews

Filtered Water Pitcher + Filter 3-Pack

NSF Certified + Affinity Filtration Technology

From$261.00

561 Reviews

Universal Inline Fridge Filter

Affinity Filtration Technology

From$152.10

5,374 Reviews

Pitcher Replacement Filter

NSF Certified + Affinity Filtration Technology

From$58.50

4,692 Reviews

Filtered Water Pitcher

NSF Certified + Affinity Filtration Technology

From$99.00

4 / 5

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Frequently Asked Questions

Can I use Clearly Filtered filters with water from natural sources?

Our filters are primarily designed for use with municipal (or tap) water. That means they can filter water from any tap, fountain, or faucet.

Though we do not recommend using our filters with natural water sources, our best-selling water pitcher and water bottles serve as excellent portable options for on-the-go individuals.

Why doesn't your technology remove minerals?

Our Affinity® Filtration Technology does not target healthy minerals (like calcium, magnesium, and potassium) for two reasons:

1) Health Benefits: These minerals play crucial roles in the body. Calcium is vital for strong bones and teeth; magnesium supports bone health and energy production, and potassium is key for proper muscle function.

2) Taste: Minerals can naturally enhance the taste of water, potentially making it more refreshing and crisp compared to demineralized water, which has been described as tasting "flat" or "dead."

Do your filters remove Total Dissolved Solids (TDS)?

Our filters are powerful enough to filter up to 386 contaminants, and smart enough to allow beneficial minerals pass through in your water. That means that healthy nutrients like calcium, magnesium, and potassium will remain in your water. After all, they are a big part of what makes water so healthy!

TDS meters detect the number of electrolytes in your water. They do so by sending an electric signal between two prongs. That signal speeds up when electrolytes are present and slows down when non-electrolytes are present. This method of testing your water has a few issues. First, it only detects parts per million (ppm) when some contaminants can be dangerous in just parts per billion (ppb) or even parts per trillion (ppt). Second, it assumes that all electrolytes are bad. That is simply not the case since essential nutrients like calcium, magnesium, and potassium are electrolytes! Third, it will not detect other contaminants (e.g., benzene) that are not electrolytes but are still harmful to your health. For all those reasons and more, we don’t buy in to the TDS method of testing your water.

What is the pH of water after filtration through Clearly Filtered products?

Our filtration technology does not explicitly alter the pH of water. In internal tests conducted on the municipal water supply in Southern California, the pH slightly increased from 6.97 to 7.25 post-filtration. This shift is attributed to the removal of acidic contaminants with low pH values.