Best Water Filter for Chlorine: 6 Reviews + Buyer’s Guide 2021

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Those who know the facts do not question the key role chlorine has played as a water disinfectant for the last 100 years. However, questions and concerns regarding the consequences of long-term exposure to chlorine and its byproducts have been raised – and rightly so!

That’s why many households are now looking for water filters capable of removing the chemical from their tap water. Here is our selection of the best ones.

On This Page You Will…

No Time to Read? Check Our List of the Best Chlorine Filters!

Chlorine FiltersDetails
SpringWell CF Whole House Chlorine Water Filter
Best Whole House Chlorine Water Filter: SpringWell CF

Read Review

Price: $$$
Type: Whole House
Chlorine Reduction: Extremely High
Clearly Filtered Pitcher
#1 Chlorine Water Filter Pitcher: Clearly Filtered

Read Review

Price: $
Type: Water Filter Pitcher
Chlorine Reduction: 99.9%
NSF: 42, 53, 244, 401, P473
Clearly Filtered 3-Stage Under Sink Water Filter
#1 Under Sink Chlorine Filter: Clearly Filtered 3-Stage

Read Review

Price: $$
Type: Under Sink
Chlorine Reduction: 98.6%
NSF: 42, 53, 401
AquaTru Countertop Reverse Osmosis System
#1 RO System for Chlorine: AquaTru

Read Review

Price: $$
Type: Reverse Osmosis
Chlorine Reduction: 96.6%
NSF: 42, 53, 58, 401, P473
*Use our discount code BOSAquaTru at checkout and get 10% OFF!
Big Berkey Gravity Water Filter
#1 Countertop/Gravity Chlorine Filter: Big Berkey

Read Review

Price: $$
Type: Gravity System
Chlorine Reduction: 99.9%
NSF: 42, 53
Aquasana Shower Filter
#1 Chlorine Shower Water Filter: Aquasana AQ-4100

Read Review

Price: $
Type: Shower Filter
Chlorine Reduction: 87%
NSF: 177

Best Chlorine Water Filter Reviews

1. #1 Whole House Chlorine Water Filter: SpringWell CF

In our opinion, the best water filter for chlorine in 2021 is the SpringWell CF. That’s because it uses a mixture of catalytic carbon and KDF to remove a broad range of contaminants including chlorine taste and odor from your water at the point of entry (whole house water filter).

Thus, it makes even the nastiest waters taste good. 5 stars!

SpringWell CF Whole House Chlorine Water Filter

SpringWell CF Whole House Chlorine Water Filter

Type:Whole House
Ability to Remove Chlorine:Extremely High
NSF Certifications:

Our Rating


  • Our top pick for tap water with chlorine and/or chloramine.
  • The SpringWell CF whole house water filter removes sediment, chemicals and other organic contaminants, and heavy metals for odor-free, great tasting water that’s also much healthier.
  • 5-micron pre-filter traps sand, dirt, rust, etc. to protect the carbon and KDF filter media bed from clogging.
  • KDF removes chlorine and heavy metals, and stops harmful algae, bacteria, and fungi from accumulating.
  • Long-lasting catalytic carbon filters volatile organic compounds (VOCs), chlorine, chloramine, pesticides, herbicides, TTHMs, …
    • SpringWell guarantees chlorine + chloramine reduction below the minimum detection level for 1 million gallons of water or 6 years.
  • 3 system sizes to choose from:
    • CF1 provides 9 gallons of water per minute (1-3 bathrooms).
    • CF 4 is rated at 12 gpm (4-6 bathrooms).
    • CF+ reaches up to 17 gpm (6+ bathrooms).
  • Filter installation is easy if you’re handy with tools.
    • Bypass valve and illustrated instructions are provided.
  • All you need to do for system maintenance is replace the pre-filter once or twice a year – convenient! Annual cost: ~$40 per year.
  • The seller offers you a full refund within the first 6 months after purchase if you’re unhappy.
  • Product is covered by limited lifetime warranty.
  • SpringWell’s customer support is A+.


  • We would have preferred metal over plastic fittings.

→ Full Review: SpringWell Water CF1, CF4 & CF+

2. Our Favorite Chlorine Filter Pitcher: Clearly Filtered

In our opinion, by far the best water filter to remove chlorine in the pitcher category in 2021 is the Clearly Filtered.

The unit is NSF-tested against Standard 42 for 99.9% chlorine reduction. Plus, it’s tested to remove more than 230 other water contaminants including 99.5% lead, 99.9% chloramine, and 96.9% chromium 6.

Clearly Filtered Pitcher

Clearly Filtered Pitcher

Type:Water Filter Pitcher
Ability to Remove Chlorine:99.9%
NSF Testing:42, 53, 244, 401, P473

Our Rating


  • The ideal water filter pitcher if you have clean and great tasting drinking water at the top of your priority list.
  • Removes more contaminants than any other water filter pitcher on the market: Chlorine, chloramine, fluoride (96.9-98.2%), E Coli (99.9%), cryptosporidium (99.9%), arsenic (99.6%), lead , chromium-6, different pharmaceuticals (99.9%), about a dozen herbicides (93.2-99.9%), pesticides (all 99.9%), PFOA (>99.0%), more than a hundred volatile and semi-volatile organic compounds (vast majority to 99.9%), and more.
    • NSF testing standards: 42, 53, 244, 401, P473.
  • The pitcher applies Clearly Filtered’s own Affinity Filtration Technology which combines with several proprietary filter materials.
  • Built in the USA.
  • Made from medical-grade Tritan which is BPA-free and doesn’t leach chemicals.
  • 10 cups water holding capacity is enough for families
  • Removable lid for easy refilling.
  • You can pour drinking water while there’s still unfiltered water in the upper reservoir.
  • Filters with long service life add convenience (about 100 gallons per cartridge).
    • More than you get with most competitor filter pitchers.
  • Unit is backed by 30-day money-back guarantee and limited lifetime warranty.


  • Although you can buy in bulk and subscribe to save, new filter cartridges aren’t cheap.

→ Full Review: Clearly Filtered Pitcher

3. #1 Under Sink Water Filter for Chlorine: Clearly Filtered 3-Stage

If you’re looking for an under sink water filter to solve your chlorine problem, look no further. The Clearly Filtered 3-stage is the best one on the market.

It provides refreshing and clean drinking water free from 230+ potential contaminants that may be lurking in your water. Average chlorine removal according to standardized NSF testing: 98.6%.

Clearly Filtered 3-Stage Under Sink Water Filter

Clearly Filtered 3-Stage Under Sink Water Filter

Type:Under Sink
Ability to Remove Chlorine:98.6%
NSF Testing:42, 53, 401

Our Rating


  • Apart from chlorine, the Clearly Filtered 3-Stage removes heavy metals like lead (99.9%), chloramine (95.3%), arsenic (94.3%), herbicides and pesticides (up to 99.9%), fluoride (99.5%), chromium 6 (99.4%), PFOA (99.9%), more than 100 VOCs and semi volatile compounds (99.9%), and much more.
    • According to lab testing against NSF standards 42, 53, and 401.
    • Filter stage 1 uses granular activated carbon media made from coconut shells.
    • At stage 2, a “special blend” of filter media is used.
    • The final filter stage combines different proprietary filter media.
  • System is built in USA.
  • Stainless steel hoses instead of plastic guarantee durability.
  • Installation is non-permanent which is great for renters. And the whole process barely takes 10 minutes.
  • Each filter stage lasts about 2,000 gallons or 12 months for easy maintenance.
    • Shut-off valves and the modular filters are designed for tool-free replacement without shutting off the local water supply.
  • Clearly Filtered provides a lifetime warranty on the product.
  • 30 days satisfaction guarantee for peace of mind.


  • Quality has its price.
  • You should expect a reduction in water pressure of 15 to 25 percent.

→ Read Full Review: Clearly Filtered 3-Stage

4. #1 Reverse Osmosis System for Chlorine Removal: AquaTru

If you like reverse osmosis systems, you’ll love the AquaTru. The countertop system is our top choice – rigorously tested and NSF certified (96.6% chlorine reduction), installation-free, compact, and easy to use. 4.5 stars!

Make sure to use our discount code BOSAquaTru at checkout and get 10% OFF!

AquaTru Countertop Reverse Osmosis System

AquaTru Countertop Reverse Osmosis System

Type:Reverse Osmosis
Ability to Remove Chlorine:96.6%
NSF Certifications:42, 53, 58, 401, P473
Warranty:1 Year

Our Rating


  • 4-stage filtration process is tested to remove 82 different contaminants from drinking water. NSF standard 42, 53, 58, 401, Protocol P473 certifications guarantee filtration effectiveness.
    • Sediment and activated carbon filter combo trap large particulates and remove chlorine, chemicals, unpleasant taste and odor, and more.
    • Reverse osmosis membrane blocks heavy metals, salts like fluoride and nitrate, and arsenic.
    • Activated carbon filter block targets organic compounds, PFAS, and pesticides among other stuff.
  • Fast filtration of 1 gallon within 10-15 minutes.
  • Water pressure pump boosts recovery rate, greatly reducing the amount of wastewater produced.
    • Only 20% of the input water goes down the drain.
  • Permeate water collects in front tank for easy one-button dispensing.
    • Tank is removable and can be stored in refrigerator.
  • Reject water collects in back tank ready for dumping.
  • Tritan plastic material is BPA and BPS-free.
  • Plug and play unit can be set up in a few minutes without tools.
  • Filter change indicator and other features make system maintenance a breeze. Yearly cost is acceptable (~$100-120 USD).
  • Backed by 1-year manufacturer warranty.


  • We’re read about issues with leaks and other malfunctions.

→ Read: Full AquaTru Review

5. Big Berkey Gravity Water Filter

When you use a Berkey gravity system, like the Big Berkey, with Black Berkey Purification Elements, you get a water filter that really excels at removing the different forms of chlorine in drinking water. Free chlorine is removed to more than 99.9%, according to testing. And residual chlorine, chloride, and even chloramine are removed to below the lab detectable limits.

In addition to that, the Big Berkey gravity water filter system removes

  • Viruses (>99.999%)
  • Bacteria (>99.9999%)
  • Aluminum (>99%)
  • Cadmium (>99.7%)
  • Chromium 6 (>99.85%)
  • Lead (>99.9%)
  • Mercury (>99.9%)
  • Pharmaceutical drugs (up to >99.9%)
  • Arsenic (>99.9%)
  • Nitrites (>95%)
  • Rust, silt, sediment
  • Turbidity
  • Foul tastes and odors
Big Berkey Gravity Water Filter

Big Berkey Gravity Water Filter

Type:Gravity Water Filter
Ability to Remove Chlorine:99.9%
NSF Certifications:42, 53

Our Rating


  • Big Berkey is perfect for families of 4.
  • NSF-certified filtration performance.
  • Fast filtration eliminates long waiting times.
  • Large tank volume means you don’t need to refill too often.
  • PF-2 filter elements can be added optionally for more effective fluoride removal.
  • 304 food-grade stainless steel is durable and preserves water quality while stored.
  • Rubber casket on the bottom prevents scratches on your countertop.
  • Assembly is quick and easy.
  • Simple maintenance, also thanks to long-lasting filter elements.
    • Each provides 3,000 gallons of filtered water.
    • Affordable!
  • Lifetime warranty for peace of mind.


  • Filter elements need period re-priming.
  • Possible leaking at the dispenser.

→ Read: Full Big Berkey System Review

6. Aquasana AQ-4100 & 4105 Shower Filter

If you want to enjoy chlorine-free showers, a shower filter is a budget-friendly alternative to a whole house water filter. And the best for this purpose is the Aquasana AQ-4100/4105.

It’s NSF standard 177 certified for 87% chlorine removal for 10,000 gallons. Of course, it also reduces other contaminants including lead, hydrogen sulfide, iron, and mercury, for much better air and water quality inside the shower.

Aquasana Shower Filter

Aquasana Shower Filter

Type:Shower Filter
Ability to Remove Chlorine:87%
NSF Certifications:177
Warranty:1 Year

Our Rating


  • Using this shower water filter, Aquasana promises healthier, more moisturized skin and hair.
  • Granular activated carbon + KDF-55 (copper-zinc blend) eliminate a wide range of impurities.
  • 4 different filter versions available:
    • Filter only (use own shower head).
    • With massaging head.
    • With massaging handheld wand in white.
    • With massaging handheld wand in chrome.
  • 5 gpm water flow rate prevents a drop in water pressure.
  • Upflow filter doesn’t lower the height of your shower head for comfortable standing.
  • Easy to install.
  • 10,000-gallon filtration capacity for low maintenance at minimum cost (~$100 USD per year).
    • Filter replacement is easy and doesn’t require tools.
  • Aquasana offers 1-year limited warranty and 90-day money-back guarantee in case anything goes wrong.


  • Vinyl hose of white handheld wand is a little stiff.
  • A few people reported about leaking.
  • Filter nozzle may be too short to accommodate large shower heads.

→ Read Full Review: Aquasana AQ-4100 & AQ-4105

Chlorine Filter Comparison List

(Mobile Hint: Swipe to Scroll)

Chlorine Water FiltersPriceAdditional Info
SpringWell CF Water Filtration System$$$Best Chlorine Filter for Whole House, Catalytic Carbon Filters Many Impurities
Clearly Filtered Pitcher$Best Chlorine Filter for Drinking Water
Clearly Filtered 3-Stage Water Filter System$$Carbon Filters Chlorine, Filtration System Provides 12 Months of Filtered Water
AquaTru RO System$$RO System Produces Pure Reverse Osmosis Water, Uses Carbon Filter
Big Berkey Water Filter System$$Gravity Water Filter System Provides Drinking Water When SHTF
Aquasana AQ-4100 & 4105 Water Filters$Shower Water Filters Provide 10,000 Gallons of Filtered Water

Buying Guide – How to Buy the Best Water Filter to Remove Chlorine

Get Your Water Tested!

Before you even think about buying a chlorine filter, you should have your water tested to determine the level of chlorine as well as other contaminants in your tap water supply.

Only with this information at hand can you choose the most appropriate filter system.

Water Testing Report

NSF Certifications

NSF testing and certifications are your only guarantee that a water filter performs as advertised by the company behind it.

NSF International is an independent institution that establishes public health and safety standards which products like water filters can be verified against.

For chlorine water filters, look for NSF Standard 42. Shower filters that remove chlorine are tested according to NSF Standard 177.

Water Filter Type

As a tap water contaminant, chlorine is one of the easiest to remove. Thus, you have a large selection of water filter types and models. Above, you’ll find a selection of the best products from each category.

Filtration Capacity & Flow Rate

All water filters, but whole house water filters in particular, need to be capable of providing enough water within a given time period. This is determined by a filter’s flow rate.

A water filter that’s too slow processing the water may lead to extended waiting times or a drop in water pressure.

As far as filtration capacity is concerned, filter cartridges with a long service life save you from frequent replacements which is more convenient and often also more affordable.

Installation and Maintenance

How much time and effort goes into installing and maintaining a water filter primarily depends on its type. For example, whole house water filtration systems are certainly more difficult to get up and running than a simple water filter pitcher.

More on Chlorine Water Filters

Why is Chlorine Added to Our Tap Water?

Simply put, chlorine is added to U.S. tap water supplies for disinfection. In other words: To kill parasites, bacteria, and viruses that could otherwise cause diseases.

Thus, water chlorination makes water safe to drink. Introduced in 1908, it has helped to eliminate waterborne diseases like typhoid fever saving tens of thousands of lives.

Furthermore, it is estimated that municipal water chlorination “played a major role in increasing Americans’ life expectancy by 50 percent during the 20th century”. The CDC calls itone of the most significant public health advances in U.S. history”.

And lastly, chlorine also helps to reduce unpleasant tastes and odors.

Is Chlorine in Drinking Water Safe or Dangerous?

Chlorine levels up to 4 ppm are considered safe in drinking water.

Also, the benefits of water chlorination far outweigh any health risks from possible disinfection byproducts, which form as an unintended consequence of adding chemically-reactive chlorine to water containing small amounts of organic matter.

Still, there are risks associated with these byproducts. Among the most critical are trihalomethanes, or short THMs. Studies showed that lab animals exposed to very high levels of trihalomethanes had an increased risk of cancer. Studies on humans found a link between long-term exposure to high levels of chlorination byproducts and a higher risk of cancer.

THMs may also have an effect on pregnancy. A study found that pregnant women who drank large amounts of tap water with high THMs had an increased risk of miscarriage.

That being said, we want to stress that the aforementioned studies neither prove a link between chlorination byproducts and cancer nor between CBDs and miscarriage. They simple show a need for further research. (Source)

Effects of Chlorine on Skin and Hair

Chlorine can affect the outer layer of your skin stripping it from its natural oils causing dryness, itchiness, and even rashes. This may even lead to premature aging.

The same applies to your hair. Without its natural oil, you hair may become brittle. Plus, chlorine can change your hair’s natural color.

How to Remove Chlorine from Water?

Carbon Filtration

Filtration is the most straightforward approach to removing chlorine from water. There are two ways you can approach this:

  1. Point-of-use (POU) water filtration – a POU system filters water at the point of use, usually the kitchen faucet. Example: A reverse osmosis water filter that gets installed under the kitchen sink.
  2. Point-of-entry (POE) water filtration – a POE system filters the entire water supply, meaning you get chlorine-free water everywhere in your home. Example: Whole house water filter based on activated carbon filtration.

When you consider that a large proportion of our daily exposure to chlorine and its disinfection byproducts does not come from the water we drink, but from what our skin absorbs and our lungs inhale in the shower, going the POE route makes a lot of sense.

Second, no matter what type of chlorine water filter you choose, what’s important is that it utilizes at least 1 activated carbon filter block or granular activated carbon filter stage (catalytic carbon filters work as well).

As a filter medium, carbon adsorbs up to 99.9% of free chlorine and many other natural and synthetic contaminants from water and traps them in the tiny pores on its surface.

Thereby, chlorine removal is a function of contact time with the filter medium. In other words: When it comes to carbon filters, appropriate sizing is critical. The more water that needs to be processed within a given period of time, the larger the filtration system needs to be.

UV Light

A viable but less common alternative to carbon filtration is UV light water treatment. Broad-spectrum ultraviolet systems reduce chlorine and chloramines into easily removed byproducts.

How? Wavelengths between 180 nm and 400 nm trigger a photochemical reaction that dissociates free chlorine forming chloride ions/hydrochloric acid.


Simply put, distillation provides water of the highest purity. Chlorine stands no chance of surviving the water treatment process, provided that there is a way for the gas to escape.

Does Reverse Osmosis Remove Chlorine?

The reverse osmosis membrane itself is not suited for filtering chlorine. In fact, chlorine causes damage to an RO membrane.

Fortunately, every single reverse osmosis system we reviewed applies at least 1 carbon pre-filter to eliminate most of the chlorine before it gets the chance to even touch the reverse osmosis membrane.

Under Sink Reverse Osmosis System

Do Brita Filters Remove Chlorine?

Yes, they do.

  • The Brita Longlast for filter pitchers reduces 97.4% of chlorine according to independent lab reports.
  • The Brita Standard (also for filter pitchers) reduces chlorine, too – we just don’t know to what extent.
  • Brita’s Complete faucet mount water filter removes 97.5% chlorine taste and odor.

Comparing the three, the Brita Standard is the least effective and lasts for a mere 40 gallons. Brita Longlast and Brita Complete are similar in terms of contaminant reduction rates and filtration capacity. One Longlast cartridge can treat up to 120 gallons of drinking water. Complete replacement filter elements are good for 100 gallons.

How About PUR and ZeroWater?

PUR’s Basic and Lead Reduction pitcher filters remove at least 96.9% of chlorine. The PUR faucet mounted filter removes about 96% chlorine plus 99.7% THMs, a group of harmful disinfection byproducts.

As far as ZeroWater is concerned, the filter pitcher reduces 97.4% of chlorine, according to a test conducted by NSF International. It’s also known for removing more than 99% of TDS (Total Dissolved Solids). However, the handling is rather difficult. And it’s one of the slowest pitchers you can buy with a low filtration capacity so that replacement cost will add up quickly.

Does Boiling Water Remove Chlorine?

Does boiling water remove chlorine? Yes, you can boil chlorine out of water, although the term boiling might be misleading. It’s enough to heat up the water, no need to actually boil it.

How long does it take for the chlorine to dissipate? Simply heat for 10 to 20 minutes and voila, all chlorine will be gone. (The exact time required could be much lower depending on the amount of water and chlorine concentrations.)

Does Chlorine Evaporate? How Long Does It Take?

Yes, chlorine as a gas at room temperature is a volatile solute that evaporates from water over time, escaping into the surrounding air.

How long does water need to sit to dechlorinate?

This depends on water temperature and surface area, air temperature, and the level of dissolved chlorine. For example: If you put a large but very flat bowl of chlorinated tap water out in the sun, the dechlorination process will be much faster than if you were to put a glass of the same amount of tap water in your refrigerator.

By the way, apart from UV light, aeration and circulation can speed up the process.

Generally speaking, you should let the water sit for about 24 hours, although chlorine taste and odor might have vanished after a couple of minutes. For more control over the process use chlorine test strips to determine how much of the water disinfectant is left.

Chemical Adjustment Using a Dechlorinator

Your last option is to use a dechlorination agent, short dechlorinator, a.k.a. chlorine neutralizer or chlorine remover.

There are different chemicals available including potassium metabisulfite, sodium thiosulfate, sodium sulfite, and vitamin C.

The main benefit of using a dechlorinator is that it works relatively fast. Required contact time: A mere seconds up to 5 minutes.

Frequently Asked Questions (FAQ)

  • Does vitamin C help to dechlorinate water?
    Indeed! Vitamin C, or ascorbic acid, can neutralize both chlorine and chloramine in tap water. It comes in form of powder or dechlorination tablets and can be used to treat large volumes. Compared to other chlorine neutralizers, the benefits of using vitamin C are that it’s an environmentally safe method and that it can be obtained for little money from many different places.
  • Does a water softener remove chlorine?
    Unfortunately, a conventional water softener does not remove chlorine from water. The exception is water systems that have granular activated carbon media added to their resin bed.
  • Do refrigerator filters remove chlorine?
    Like all other water filters that rely on carbon filter media, most refrigerator water filters remove chlorine.
  • How can you get rid of chlorine naturally (without chemicals)?
    Yes, you can. Boiling (heating), aging, and aeration are the go-to methods.
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I hope this list of the best chlorine filters was helpful. Questions? Ask away!

About the Author Gene Fitzgerald

Gene Fitzgerald has been with BOS since the very beginning. She is head of content creation and has fully immersed herself into the home water treatment industry only to become an expert herself. Outside of BOS, Gene loves reading books on philosophy & social issues, making music, and hiking.
Learn more about Gene and the rest of the BOS Team.


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