The best self-filtering water bottle will keep your water clean, regardless of the situation you find yourself in.
Whether you’re tired of trying to find safe drinking water while exploring the great outdoors or can’t stand the taste of the water that comes out of the communal fountain at your workplace, a self-filtering water bottle will save the day.
But not all self-filtering water bottles are made equal. Some are better at eliminating bacteria than others.
Choosing the best self-filtering water bottle might seem overwhelming. Where do you start?
Why Use a Self-Filtering Water Bottle?
Drinking enough water is crucial for good health. However, if you’re drinking water straight out of the tap, it could be causing you more harm than good.
Tap water sometimes contains chlorine, assorted hormones, fluorine compounds, pesticides, trace amounts of prescription drugs, and hundreds of other contaminants with unknown long-term effects.
For most people, the obvious alternative to tap water is bottled water.
But here’s the thing: Bottled water isn’t necessarily any better. Besides, it’s also incredibly wasteful. Humans purchase about a million plastic bottles a minute. In the U.S, consumers recycle only 23 percent of all plastic bottles.
If you want to boost your health, and save money, and help the environment at the same time, consider investing in the best self-filtering water bottle.
Best of all? You can use self-filtering water bottles for more than just cleaning your tap water!
For example, if you’re into hiking, you can use a self-filtering water bottle to turn lake or river water into drinking water.
Similarly, if you’re off traveling the world, you might find yourself in an exotic country with questionable drinking water. Instead of risking contracting a disease, or spending a small fortune on bottled water, you can use your self-filtering water bottle to remove viruses and other contaminants from the water.
How Does a Self-Filtering Water Bottle Work?
A self-filtering water bottle looks like a regular water bottle. However, unlike ordinary water bottles, self-filtering water bottles use a filtration system.
The micron score measures the effectiveness of most filters. A micron is the millionth part of a meter, or 0.001 mm. So, a water filter that protects you down to one micron gets rid of all particles larger than one micron. Most large bacteria is in the range of 1 to 100 microns.
Some water bottle models come equipped with filters that clean water as soon as you pour it inside the bottle. On the other hand, it’s not unusual to see bottles that filter water when you drink from the bottle instead.
Regardless of the particular system utilized, water typically goes through multiple filters, thus eliminating all, or most, contaminants.
Make it Last
Not even the best self-filtering water bottle will last you forever if you don’t take proper care of it. Always read the instructions manual to see whether you need to take any specific steps to keep your water bottle in good condition.
Keep in mind that while most bottles are dishwasher safe, the filters aren’t.
Changing the Filter
Self-filtering water bottles are a little harder to upkeep than regular water bottles.
Once in a while, you’ll need to replace the filter inside your self-filtering water bottle to ensure water purity.
Generally, a water bottle filter lasts between two to six months, although some models can last you for up to a year. Most models also specify the number of gallons of water that the filter can handle before it needs to be swapped out.
Choosing the Best Self-Filtering Water Bottle
If you want to ensure that you buy the best self-filtering water bottle for you, you need to consider several factors.
Know its purpose
The first step in picking the best self-filtering water bottle is figuring out what you’ll be using it for.
Are you looking to purchase the best self-filtering water bottle because you’re addicted to hiking, but you never bring enough water? Do you worry about the quality of the water that comes out of your tap? Or perhaps you’re about to embark on a backpacking adventure?
If you don’t need intense filtration, you can opt for simpler models that eliminate weird odors and tastes, but little else.
Conversely, if you’re traveling to a third world country, you’ll want to invest in a water bottle that can eliminate waterborne bacteria and viruses.
Most self-filtering water bottles are plastic. Nonetheless, you can purchase self-filtering water bottles that are made from other materials, such as glass, too.
Because glass water bottles have no plastic components, they make water taste neutral. However, glass products are usually more expensive than plastic products.
If you’re choosing a plastic water bottle, make sure that it’s free of BPA material. BPA stands for Bisphenol A, a chemical commonly found in plastic that harms your health.
Consider the weight
If you’re purchasing the best self-filtering water bottle to take with you when you run a marathon, you’ll want a model that is as lightweight as possible.
Conversely, if you’re going to use the best self-filtering water bottle at home or work, weight isn’t likely to be as big an issue.
Generally speaking, the more powerful the filtration system, the heavier the water bottle.
How We Reviewed
We looked at professional and customer reviews to find the best self-filtering water bottle on the market today.
However, no matter how glowing expert reviews, we chose to include only those models that received a 4.0 out of 5.0-star rating on Amazon.
The way we look at it, if customers aren’t happy with their purchase, you might not be either. And that’s just not good enough. We want to ensure that you get the best bang for your buck.
Since there are many different self-filtering water bottles out there, we tried to keep our list as varied as possible.
10 Best Self-Filtering Water Bottle Models
Below is a comprehensive list comprised our favorite best self-filtering water bottle models.
Epic Nalgene OG Water Filtration Bottle
- MULTI-STAGE FILTRATION PROCESS: The Nalgene OG filter uses depth &…
- NO MORE EXPENSIVE SINGLE USE PLASTIC WATER BOTTLES: The Nalgene OG…
- SIMPLE, SAFE & AMERICAN MADE: Nalgene provided the legendary OG…
The Epic Nalgene OG Water Filtration Bottle by Epic Water Filters utilizes two filtration techniques to block any contaminants that are larger than 1 micron. These two techniques are adsorption and depth filtration.
The adsorption filtration uses an environmentally-friendly coconut carbon-fiber mesh filter to remove heavy metals, pharmaceuticals, and other chemicals.
On the other hand, depth filtration removes suspended waste products as they try to get past the layers of the coconut carbon filter.
Made from 100 percent food-grade, FDA-approved materials, this bottle is BPA- and BPS-free. Furthermore, all parts are replaceable, recyclable, vegan, and gluten-free.
The bottle, which weighs 32 ounces, produces 75 gallons of clean water, replacing 550 single-use plastic water bottles.
Best of all? Epic Water Filters offers a 100 percent money-back guarantee. If you don’t think that the Epic Nalgene OG Water Filtration Bottle is the best self-filtering water bottle for you, you can always send it back.
On Amazon, customers gave this bottle a 4.6 out of 5.0-star rating. Most people could taste a noticeable difference in the water after using this bottle.
On the other hand, some users were disappointed to discover that this bottle cleans tap water only.
joypur Portable Filtered Water Bottle
- Advanced 4-level Water Filter Bottle — 0.01 Micron Ultrafiltration…
- Filtered Water Bottle for Daily Use — Can filter tap water and drink…
- Camping Water Filter — Portable outdoor water purifier bottle…
If you’re on the hunt for the best self-filtered water bottle for hiking or camping, consider the joypur Portable Filtered Water Bottle.
This lightweight water bottle has a 22-ounce capacity and a three-stage filtration system. Also, it comes equipped with a 0.01 Micron Ultrafiltration Membrane. Anything larger than 0.01 microns can’t pass.
As such, the bottle’s filter can effectively turn lake, spring, river, and stream water into drinking water. In addition, the activated carbon filter helps improve the taste and reduces bad odor.
Because the joypur Portable Filtered Water Bottle boasts a leak-proof design, the chances of it leaking in your backpack are practically non-existent. The built-in compass on the top of the bottle is a nice extra and is bound to come in handy if you ever get lost.
The body of the bottle is made from Tritan, a BPA-free plastic whereas the mouthpiece is food-grade silicone.
Since this bottle can filter almost 400 gallons of water before you need to change up the filter, average users don’t have to worry about replacing the filter for up to 8 months.
Amazon customers awarded this self-filtering water bottle a 4.3 out of 5.0-star rating. They noted that the bottle is durable and can be hooked on to your purse or pants. Furthermore, it fits nicely inside the car cup holder.
The only complaint was that you need to keep the drinking spout in an upward position. Otherwise, there’s a noticeable decrease in suction.
LifeStraw Go Water Filter
- Reusable LifeStraw Go BPA-free water bottle filters water while…
- Award-winning LifeStraw hollow fiber membrane water filter removes…
- 2-stage activated carbon filter reduces odor, chlorine and leaves zero…
The LifeStraw Go Water Filter is the best self-filtering water bottle for urban dwellers with limited access to filtered water. Those who take regular international trips might find this bottle useful, too.
Since the LifeStraw Go Water Filter removes contaminants from lakes and streams, it’s also a handy addition to any hiker’s backpack. It’s durable and leak-proof, although it does weigh around 10 ounces.
The two-stage activated carbon filter, which removes 99.9 percent of waterborne bacteria and parasites, consists of a hollow fiber membrane and a carbon capsule.
The hollow fiber membrane acts as a physical barrier against parasites and bacteria, including E. coli. On the other hand, the carbon capsule improves the taste and reduces bad odor, chlorine, and organic chemical matter such as pesticides.
This bottle is made of BPA-free Tritan and can hold around 19 ounces of water. It’s equipped with a food-grade silicone mouthpiece although you have to suck on it relatively hard to push the water through the filter.
LifeStraw recommends that you replace the filter every 26 gallons, which equals to around 3 months of continuous use.
This water bottle gets a 4.0 out of 5.0-star rating on Amazon. Customers noted that the LifeStraw Go Water Filter bottle produces clean and flavorless water.
Nonetheless, some people found the bottle challenging to use. Furthermore, some users complained that the resulting water had a strong chemical taste.
Brita Sport Water Bottle
Those on a budget would be hard-pressed to find a better self-filtering water bottle than Brita Sport Water Bottle.
Because it weighs just over 4 ounces and boasts a flip-open straw, this water bottle is ideal for taking with you on your daily jog or to the gym.
This BPA-free water bottle comes with a filter that contains activated carbon. Consequently, it decreases the bacteria as well as the chlorine taste and odor that accompanies most tap water.
Unfortunately, since this water bottle filters only tap water, it isn’t the best option for those who spend most of their free time out in the wilderness.
The filter lasts for around 40 gallons or two months of everyday use.
On Amazon, the Brita Sport Water Bottle gets a 4.5 out of 5.0-star rating. Customers said that the water bottle is light and portable and that the filter lasts a long time.
However, some users noted that the bottle feels cheap. Others still were disappointed to find that the bottle leaked.
SurviMate Filtered Water Bottle
- 【Advanced purification System 】： Survimate purifier water…
- 【Safe Like Baby Bottle】：Survimate Bottles are made from Food…
- 【Long Lifespan & Replaceable 】：No need to worry about replacing…
- Coconut shell activated carbon
- Medical grade hollow fiber UF membrane
- Antibacterial beads
- Medical grade PP cotton
The SurviMate Filtered Water Bottle utilizes a four-stage water filter system that includes:
This advanced system gets rid of 99.9 percent of contaminants in water, such as heavy metals and chemicals.
Made from BPA-free Tritan, this water bottle is FDA-approved and has no bad smell. Furthermore, it’s heat resistant and very durable.
Dropping the bottle on the ground will result in a few scratches, but no cracks. That, combined with a built-in compass and the bottle’s ability to filter puddles and ponds, makes this water bottle ideal for outdoor adventures. You can even attach it to your bag or belt via the built-in carabiner clip.
Perhaps most impressively, you don’t have to worry about replacing the filter until you drink around 400 gallons of water. That’s about a year of daily use!
This water bottle gets a 4.1 out of 5.0-star rating on Amazon. Customers were particularly happy with the filter’s longevity. Nonetheless, some users said that the filtered water smells and tastes like plastic.
GRAYL Ultralight Water Purifier
- Ideal for global traveling, outdoor adventures, emergency…
- Fast and easy-to-use, simply Fill. Press. Drink. No sucking,…
- Award winning [ONE PRESS] design makes clean, purified drinking water…
The GRYAL Ultralight Water Purifier is the best self-filtering water bottle to take with you when you embark on a trip around the world.
The activated carbon and ion exchange technology removes 99.9 percent of bacteria and viruses from your water, thus preventing you from falling ill.
In addition to ridding your water of pathogens, the activated carbon eliminates heavy metals, pesticides, and other chemicals. It improves the clarity and flavor, as well as the odor, of your water, too.
According to GRAYL, the bottle’s filter cleans around 16 ounces of water in just 15 seconds.
The bottle also filters lake, river, and pond water. However, filtrating water isn’t easy as you need to press down on the bottle with a fair bit of strength.
This durable water bottle weighs around 12 ounces when empty, and the water filter is suitable for approximately 40 gallons of water.
Amazon customers gave this water bottle a 4.3 out of 5.0-star rating. Most people noted that the GRAYL Ultralight Water Purifier is easy to use. One customer pointed out that the pressure required to filter water is similar to the force needed to make AeroPress coffee.
Nevertheless, quite a few users complained about the bottle leaking.
OKO H20 Level-2 Filtration Water Bottle
- O-ring carabineer used to carry or hook the bottle onto a bag
- Water bottle with Level-2 filter
- Filter produces superiorly-efficient filtration with a powerful flow
The OKO H20 Level-2 Filtration Water Bottle uses a two-stage filtration process, which involves a method known as “attraction and retention” to trap contaminants before killing them.
This filtration system eliminates more than 90 percent of bacteria such as E-coli, Cryptosporidium, and Giardia. Furthermore, it can filter water in more than 140 countries.
The FDA-approved plastic bottle features a BPA-free Tritan cap. Because the lid is transparent, you can observe the water filtration process as it happens.
The bottle’s contoured shape makes it easier to grip it whereas the carabineer is useful for hooking the bottle onto your bag.
You can choose between the 22-ounce version and the 34-ounce version. The former weighs around 5 ounces whereas the latter weighs just over 5 ounces. Both have a 100-gallon filter capacity.
The OKO H20 Level-2 Filtration Water Bottle gets a 4.0 out of 5.0-star rating on Amazon. Users said that the bottle is easy to use and noted that the resulting water tastes great.
Nonetheless, some people said that there’s a design flaw: Air gets through into the mouthpiece, which makes the bottle difficult to use.
Seychelle Extreme Water Filter Bottle
- PERFECT FOR CAMPING AND INTERNATIONAL TRAVEL – Clean, safe drinking…
- FILTERS DOWN TO .2 MICRONS – This high end portable water purifier…
- EMERGENCY PREPARATION – Life can be extremely unpredictable. Keep…
Designed with extremely contaminated water in mind, the Seychelle Extreme Water Filter Bottle removes 99.9 percent of biological contaminants such as bacteria and viruses. However, the Seychelle Extreme Water Filter Bottle also eliminates:
- Chemical pollutants such as detergents, herbicides, and pesticides
- Inorganic substances such as aluminum, lead, and mercury
- Radiological material such as uranium
- Aesthetic contaminants such as chlorine, bad taste, and odor
This food-grade water bottle is squeezable, which makes drinking purified water much easier.
The Seychelle Extreme Water Filter Bottle weighs around 5 ounces and has a 28-ounce capacity. The filter can clean around 100 gallons of water before it needs replacing.
The sturdy design means that you can use this water bottle in emergencies such as hurricanes or cyclones.
Amazon customers awarded this water bottle a 4.1 out of 5.0-star rating. Customers said that this bottle works great. One user even mentioned that he filled up his bottle with water from the Nile river.
Nevertheless, some people found the bottle hard to use. Leaks were also a problem.
Katadyn BeFree Water Filter
- 0.1 micron water filter removes harmful organisms like bacteria…
- Collapsible 1.0L hydrapak soft bottle flask packs down small to fit in…
- Ez-clean Membrane is simple and easy to clean by simply shaking or…
The collapsible Katadyn BeFree Water Filter is, without a doubt, the best self-filtering water bottle for those who are always on the go, whether hiking, camping, or enjoying other outdoor activities.
The 0.1-micron filter eliminates 99.9 percent of bacteria and protozoa found in water, but only if you reside or are traveling in the U.S. or Canada. Since the filter doesn’t get rid of viruses found in other areas, you’d be wise to leave it at home when going abroad.
Even though the bottle is collapsible, it isn’t too tricky to use. It features a wide mouthpiece and is therefore easy to fill, especially with water from large running sources. You might have a difficult time filling the bottle when the water source is small, however.
The 3-liter version weighs just over 3 ounces and can filter up to 264 gallons of water. Katadyn also offers both smaller and larger versions of this product, so you can choose the model that suits your needs and lifestyle best.
The only drawback is that the bottle is very delicate. If you’re not careful, you could end up with a pinhole or a rip.
On Amazon, this water bottle gets a 4.1 out of 5.0-star rating. Customers said that the Katadyn BeFree Water Filter bottle is easy to pack and use. Nonetheless, some users noted that the bottle’s design is flawed. Apparently, the filter is poorly secured.
Escape Glass Filtered Water Bottle
- PROTECTED GLASS: Protective silicone sleeve provides durability and a…
- NO HEAVY METALS OR BPS LEACHING: Our glass bottles offer a pure taste…
- MULTI-STAGE FILTRATION PROCESS: The Escape Glass Filtered Water uses…
The Escape Glass Filtered Water Bottle is another self-filtered water bottle by Epic Water Filters. Because the water bottle is glass, you don’t have to worry about heavy metal or BPS leaching. That’s one of the reasons this water bottle stands out from other products on our best self-filtered water bottle list.
The bottle achieves one-micron contaminant removal via a multi-stage filtration process that includes adsorption and depth filtration.
The coconut carbon-fiber mesh adsorbs chemicals, heavy metals, and pharmaceuticals. Depth filtration removes suspended waste products that try to pass through thousands of layers of the coconut carbon fiber mesh.
Nonetheless, the Escape Glass Filtered Water Bottle doesn’t remove bacteria or viruses. However, if bacteria filtering is important to you, you can always upgrade to a special outdoor microbiological filter designed with freshwater in mind.
The bottle can handle temperature changes and chemical corrosion. Because it comes with a protective silicone wrap, it’s also scratch-, stain-, and impact-resistant.
Also, the Safeguard lid provides a cover that keeps your mouthpiece dust- and debris-free. The straw is removable and thus easy to clean.
The Escape has a 24-ounce capacity. Its filter can handle 75 gallons of water.
The company offers a 100 percent lifetime satisfaction guarantee on all its products. As such, you can send the self-filtering water bottle back if you’re unhappy with it and receive a full refund.
Amazon customers gave this water bottle a 4.1 out of 5.0-star rating. Users mentioned that the Escape water bottle functions as expected.
On the other hand, some people noted that the bottle is very fragile and breaks quickly.
The Best Self-Filtering Water Bottle for You
A self-filtering water bottle is a useful contraption and one that could even save your life, especially if you’re into backcountry trekking or exotic travel.
Nevertheless, a self-filtering water bottle is bound to come in handy even if you’re a homebody. The water that comes out of your tap might seem clean, but chances are, it isn’t really.
The best self-filtering water bottle for you depends on multiple factors, including but not limited to, your lifestyle. Whichever bottle you choose, remember to weigh up the pros and the cons. Most self-filtering bottles aren’t too costly, yet last for years.
Did you find the best self-filtering water bottle for you? Or maybe you’re still looking? Let us know in the comment section down below!
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