The 10 Best Filtered Water Bottles

Updated June 15, 2018 by Chase Brush

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We spent 46 hours on research, videography, and editing, to review the top choices for this wiki. If you're tired of drinking tap water that leaves a chemical aftertaste, or need a purification method when you're out camping, try one of these filtered water bottles. They'll remove pollutants, small particles and, in some cases, bacteria and viruses from H2O. As a bonus, they are environmentally friendly, too, saving lots of plastic from going into landfills. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best filtered water bottle on Amazon.

10. Refresh2go Curve

The highly affordable and stylish Refresh2go Curve makes healthy hydration a no-brainer. While it may not be the most robust in terms of purification methods, it's plenty equipped to handle the day-to-day drinking habits of most people, and has a leakproof lid.
  • fits in most car and bike holders
  • can be used without filter
  • mouthpiece creates air bubbles
Brand Refresh2go
Model 1010-B
Weight 5.6 ounces
Rating 4.1 / 5.0

9. WaterBasics Filtered

The WaterBasics Filtered incorporates a GRN Line clarifier that provides good defense against the kind of protozoan cysts, such as cryptosporidium and giardia, that usually turn up in backcountry rivers and streams. If you're going camping, this is a strong choice.
  • good for survival kits too
  • bite valve is easy to use
  • decals peel off quickly
Brand WaterBasics
Model 67256
Weight 8 ounces
Rating 3.6 / 5.0

8. Bobble Infuse

With its soft-touch carrying cap and no-spill mouthpiece, the Bobble Infuse is perfect for anyone who just wants to ensure their tap water is odor and taste-free. The Tritan plastic material, while durable, is also squeezable and lightweight, so it's easy to carry around.
  • modular cap can also infuse fruit
  • comes in variety of cool colors
  • flow rate is very slow
Brand Bobble
Model HFI002000O006POP
Weight 1.4 ounces
Rating 4.0 / 5.0

7. Brita 23 Ounce

The Brita 23 Ounce features a slim, portable design that makes it great for active lifestyles or for taking anywhere on the go. It won't filter out pathogens or more serious contaminants, but for normal H2O and everyday use around the office or at the gym, it does the job.
  • convenient built-in carry loop
  • a flip-out straw
  • must change cartridge every 2 months
Brand Brita
Model 10060258358084
Weight 6.4 ounces
Rating 4.5 / 5.0

6. Seychelle Flip Top

The Seychelle Flip Top isn't for your casual office fill-up: with a radiological filtration system that can allegedly even remove nuclear contaminants, it's intended for emergency situations where clean water is scarce. We only wish the bottle design was as advanced.
  • effective on turbid and stagnant h2o
  • from a leading name in the business
  • not very enjoyable to drink from
Brand Seychelle
Model 1-10303-28-HI-FC-SEY
Weight 4.8 ounces
Rating 4.2 / 5.0

5. Oko H2O Level-2

The Oko H2O Level-2 uses cutting-edge filtration technology originally developed through NASA to draw a range of problematic agents from its contents. What's more, it can do so for up to a whopping 100 gallons of liquid, or 750 refills, before having to be replaced.
  • excellent for travelling
  • an o-ring carabiner
  • unique translucent cap
Brand OKO H2O
Model OKO-1000-AIR-P
Weight pending
Rating 4.1 / 5.0

4. Kora Nava

The ergonomic Kora Nava is designed, first and foremost, with ease of use in mind. The hygienic spout flows easily and naturally, requiring no excessive biting or sucking, while the carbon-activated coconut shell filter exceeds NSF 42 standards for chlorine taste removal.
  • sustainably manufactured
  • has a cushioned base
  • cap is very easy to remove
Brand KOR Water
Model 3259
Weight 9.1 ounces
Rating 3.9 / 5.0

3. CamelBak Groove

The CamelBak Groove has an integrated loop handle that can be clipped quickly to a carabiner, and is suitable for use in high altitude or low-pressure environments, making it good for outdoor expeditions. The sustainable, plant-based filter lasts for about three months.
  • comes in plastic and steel version
  • backed by lifetime guarantee
  • valve made of medical grade silicone
Brand CamelBak
Model 53284
Weight 7.2 ounces
Rating 4.6 / 5.0

2. LifeStraw Go

When you want clean H2O, the best-selling LifeStraw Go will provide it every time. The model's reliability is thanks to its innovative 2-stage filtration system, which combines a hollow fiber membrane with a carbon capsule to eliminate both harmful bacteria and bad tastes.
  • leaves no aftertaste
  • doesn't contain iodine
  • can purify stream and pond water
Brand LifeStraw
Model LSGOV2CR45
Weight 9.9 ounces
Rating 4.9 / 5.0

1. Grayl Ultralight

Utilizing one of the most advanced filters of any model out there, the Grayl Ultralight is capable of removing just about everything you don't want in your water. And, unlike other bottles that rely on gravity or suction, this one uses pressure from your own body to work.
  • extremely light and compact
  • clarifies in just 15 seconds
  • also takes care of sediment and silt
Brand GRAYL
Model 321755
Weight 1.1 pounds
Rating 5.0 / 5.0

A Brief History Of Water Filters

The ancient Egyptians were the first known people to try purifying their water. For them, this meant boiling it over fire or leaving it out in the hot sun. The idea was that the heat would kill anything undesirable inside, which turned out to be pretty smart thinking. Of course, they also filtered their water through sand and gravel, so maybe let's hold off on awarding them any Nobel Prizes for science.

Later on, in Greece, the famous physician Hippocrates devised his own method of removing impurities from the water supply. His method involved pouring boiled water through a cloth bag, which he humbly dubbed "The Hippocrates Sleeve." This was likely good for straining out dirt and heavy minerals, but did little for microbes beyond what the boiling accomplished.

Other scientists and tinkerers tried their hand at filtering over the years. Methods included adding herbs, barley, or salt to the drinking supply. As you might expect, these experiments met with little success.

It wasn't until the late 1600s that real progress would start to be made, thanks to the advent of the microscope. Antonie van Leeuwenhoek and Robert Hooke, widely considered to be the fathers of microscopy, were also the first to observe tiny pathogens in bodies of water.

The first widespread attempts to do something about these pathogens wouldn't come until the early 19th century, however, when Scottish bleachery owner John Gibb created the sand filter. This filter uses grains of sand to trap and capture particulates in the water, reducing the amount of toxins inside and improving its taste and odor (not to mention making me look stupid for making fun of the Egyptians a few paragraphs ago).

Water quality standards would be introduced in London in 1852, with the United States following suit some 60 years later. It wouldn't be until 1974, with the passage of the Safe Drinking Water Act, that universal federal standards would be adopted.

Today, most public water supplies are safe to drink, but that doesn't stop people from preferring to do their own filtering. Modern water is pushed through carbon filters, zapped with infrared or ultraviolet radiation, and treated via reverse osmosis, all in the name of improving taste and quality.

Regardless of which filtering method you prefer — or if you just like drinking out of the tap — one thing's for certain: drinking bad water can be hazardous to your health.

The Benefits Of Filtering Your Water

If your local tap water is likely clean and safe, why should you go through the trouble of filtering it? There are a few reasons why people choose to take extra precautions.

One is the taste. If you're not used to it, tap water can taste like it has chlorine in it (this is because it has chlorine in it). Many people don't like feeling as if they're drinking pool water, and a high-quality filter can help even out the flavor.

Of course, you could just buy the bottled stuff if you wanted to avoid drinking from the municipal supply, but that can quickly get expensive, not to mention hazardous to the environment. With a filter, you get all the benefits of the store-bought stuff, but at a fraction of the price, and with much less planetary impact.

Some people, especially those with sensitive GI tracts, just feel better when they're drinking the purified stuff. Many filters can help reduce the prevalence of Giardia and other microbes, saving your intestines from having to fight off unwanted invaders.

Beyond that, there are many claims that certain filters can nearly perform miracles, such as ionizing your water or improving the alkalinity of your body. The belief is that, by zapping your liquid with some mystical power, your energy levels, immune system, and overall health will improve.

Do these things work? Probably not — but they may not hurt, either (except in the ol' pocketbook). Try them if you must, but just know that their effectiveness is likely directly correlated to your belief about their effectiveness.

How To Choose The Right Filtered Water Bottle For You

Choosing the right filtered water bottle doesn't have to be a stressful decision. There are only a few key things you need to look for while shopping.

The most important is to decide what your particular needs are. Will you just be using it for the gym, or will you be taking it with you everywhere you go?

If it's just for the gym, you can most likely get away with a smaller model. After all, you'll want something you can stash in your bag, not to mention fit in the cup holders on the elliptical. You should also consider how easy it will be to drink from, especially when you're sucking wind.

However, if this bottle is going to be your new sidekick, look for something a little more generously-sized. Drinking water is good for you, so buy something large and encourage yourself to finish it several times a day. Keep in mind that it will take a little while for the water to matriculate through the filter, so a larger bottle will give you more wiggle room on refills.

Ultimately, the most important thing is to find an option that makes it convenient for you to drink more water. The last thing you want to happen is for you to turn to sodas or sugary fruit juices when you're thirsty, as these can sabotage your diet in the blink of an eye.

Once you find one you like, you can enjoy all of the benefits of a well-hydrated lifestyle, including more energy, a healthier complexion, and most importantly, less time at your desk and more time in the bathroom.


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Last updated on June 15, 2018 by Chase Brush

Chase is a freelance journalist with experience working in the areas of politics and public policy. Currently based in Brooklyn, NY, he is also a hopeless itinerant continually awaiting his next Great Escape.


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