Having clean water to drink is essential, especially when you’re on-the-go or working out.
We often resort to store-bought bottled water; however, this isn’t only expensive but also bad for the environment. What if you could have your filtered water with you wherever you go?
There are many filtered water bottles available on the market. Some are fitted with simple filtration, while others are more complex. Nevertheless, they enable you to go hiking, work out and do other activities while having clean, filtered water to drink. Here is our guide to the best filtered water bottles.
- Multi-stage filter
- Tight seal
- Easy lid
- High-quality filter
- Easy sip
- Thorough two-stage filter
- Fights bacteria
- Long-lasting filters
- Four-stage filtration
- Slim Design
- Two-stage filter
- Slim design
- Long-lasting filter
- Long-lasting filter
- Improves taste
- Easy to clean
How Do Filtered Water Bottles Work?
When you first hear about filtered water bottles, you might think they’re going to be heavy and large. However, filtered water bottles were made to be taken wherever you go and come in various sizes, depending on capacity.
Inside each bottle is a filtration system. Which method the individual bottles utilizes depends on the filter. Some water bottles filter the water as you fill it, while others filter it as you drink. Each method is effective, so it depends on your preferences.
Filtered water bottles will remove contaminants as well as impurities from the water. Some filters will even remove odors, leaving you with clean, fresh water. What contaminants the bottle removes depends on the filter.
The most common filter is activated carbon, which typically uses three stages of filtration. Let’s take a more detailed look.
Stage #1: Activated Carbon
Activated carbon filters are some of the most commonly used filters. They’re very effective, removing particles ranging in size from 0.5 to 50 microns.
Activated carbon filters can remove a range of contaminants, including sediment, chlorine, volatile organic compounds (VOCs) and odors. In activated carbon filtered water bottles, you may notice tiny black specks at the bottom of the bottle. The specks are perfectly safe and are only escaped carbon.
On the other hand, activated carbon is less effective at removing minerals, salts and other dissolved organic compounds. They also don’t last for long before needing to be replaced. It’s crucial to replace the water filter when required, or else it could begin to leak contaminants back into the water.
The carbon in the filter has been treated with oxygen. This happens via physical modification and degradation in a furnace and makes the carbon highly porous (1). The activated carbon has to be permeable to allow the next step in the process: adsorption.
Stage #2: Adsorption
Adsorption is a simple process where pollutant molecules are trapped inside the pores of the carbon substrate. In a filtered water bottle, the filter removes contaminants by binding to them. Activated carbon is so effective because it generally has four binding sites (2).
Contaminants in the water adsorb to the activated carbon filter because they’re attracted to the carbon atoms. This is why it’s so important to replace the filter when needed. When the carbon becomes fully saturated with pollutants, it can’t catch any more inside its pores.
Stage #3: Filtration
Activated carbon removes pollutants based on its chemical attraction to carbon. Neutral or nonpolar (hydrophobic) contaminants are organic and have a high molecular weight. Consequently, these are easily removed by the filter.
On the other hand, minerals and salts won’t be removed by carbon filters (3).
Pros & Cons of Filtered Water Bottles
Having a filtered water bottle comes with many benefits. Consequently, these types of water bottles have become very popular with active people as well as mommies on the go.
Plastic water bottles are used once or maybe twice, but will eventually end up in landfills. There, they’ll pollute the earth and not degrade. That’s not to mention the time, energy and delivery costs it takes to produce plastic bottled water.
Because of this, many people opt for reusable water bottles, which are enhanced when they have a filter. You get to use the same bottle every day, only changing the filter when needed.
Having your filtered water bottle on hand is very convenient. Maybe you like to go hiking but hate having to bring gallons of water along. Easily fill the bottle in a creek or river along the track.
People who travel often might be wary about the water they’re drinking. The filter will ensure you have pure water to drink outdoors.
Because there’s so much worry about the water coming from our taps, we often opt for bottled water. However, with a filtered water bottle, you won’t have to spend money on expensive bottled water. It’s perfectly safe to fill the bottle with tap water since the filter will remove harmful contaminants.
Better Alternative to Other Methods
Disinfection tablets, hand pump filters, ultraviolet lights and boiling water. These methods are all effective, but not as convenient or not always possible. Filtered water bottles are easy to carry, effective and filter water right then and there.
Slow Water Output
Unlike regular water bottles, where the water seems to just flow out as you drink, filtered bottles are different. Most use a straw, so as you take a sip, the water runs through the filter before exiting the spout or straw.
Consequently, this can slow the process down as the water runs through the filter. But keep at it — as soon as the filter is “broken in,” the water will begin to pick up the pace.
Due to the added filter, the capacity of filtered water bottles can be restricted. Most bottles hold around 20 ounces, which may not be enough for long hikes. However, you do have the option of filling it on the way if you stumble upon a river, lake or creek.
Choosing the Best Filtered Water Bottle
Filtered water bottles are convenient and easy on the environment. However, it’s important to find the best filtered bottle that suits your needs and lifestyle. Below, we’ve made a list of a few important points to consider before settling on a bottle.
On average, filtered water bottles will hold around 20 ounces; however, some will only hold around 16. Consider your lifestyle and which capacity will suit you the most.
For instance, if you’re often out on long hikes, a larger capacity of 25 ounces and more will be handy. On the other hand, if you only need a bottle to keep with you as you run errands during the day, a smaller capacity will suffice.
Mind the Weight
Material plays an important role in any high-quality bottle. There are many materials available, most commonly plastic and stainless steel. It’s crucial to choose BPA-free plastic bottles that are FDA-approved to ensure safety (4). The mouthpiece is another crucial point — this should be made out of food-grade silicone.
What Do You Need It to Filter?
Water, you might be thinking. Although this is obvious, it’s important to consider where you might be filling your bottle.
Different water sources hold different contaminants. For instance, parasites and bacteria are found in rivers and creeks, while chemicals are found in tap water (5).
If you’re often out hiking and like to take a sip from any water source, a filter that removes parasites is essential. On the other hand, if you’re only going to drink tap water, a simple filter will suffice.
The Best Filtered Water Bottles of 2021
We searched through the top-rated models and consulted industry experts. We also took into account bottles that can suit any lifestyle while also removing harmful pollutants and being easy to take on-the-go. It’s time to see our recommended best filtered water bottles.
1. Epic Nalgene OG 32-Ounce
If you’re an active person who likes to stay hydrated with clean water, the Epic Nalgene OG is for you. It uses an organic coconut-based carbon filter that’s made in the U.S. Plus, the bottle itself — made of Tritan material — is dishwasher safe and FDA-approved.
In addition, the materials are reusable and recyclable, gluten-free and 100 percent vegan. The filter will last you a long time, depending on usage, so you can save money in the long run.
Why We Love It
This water bottle is among some of the most filter-efficient bottles on the market. It contains a multi-stage filtration process that utilizes depth and adsorption to remove particles up to 1 micron in size.
Furthermore, it’s equipped with an activated coconut carbon filter that adsorbs contaminants such as heavy metals, herbicides, chemicals and cysts.
Made in the U.S., this bottle is fitted with an organic coconut shell-based carbon-fiber mesh filter.
It’s eco-friendly and approved by NSF/ANSI standards. This means it has been independently tested, so you can be sure it meets its promised standards.
Holding 32 ounces of filtered water, this bottle is an excellent size for any active person who likes to stay hydrated. Despite the capacity, the bottle is lightweight and easy to carry, thanks to the convenient handle at the top.
The filter will last you a long time — up to 75 gallons before it needs to be replaced. The bottle itself will last a very long time, saving the planet of countless disposable plastic bottles. In addition, the filter is easy to get your hands on and the replacements affordable.
Keep In Mind
Filter Sits High
Because the filter doesn’t reach the bottom of the bottle, it can be tricky to get the last 2 to 3 ounces of water out. Consequently, you might get a bit of air through the straw as well, which multiple customers found uncomfortable.
|Filter Life||75 gallons|
|Bottle Capacity||32 ounces|
2. Brita 20-Ounce Stainless Steel Bottle
If you’d like to avoid plastic materials altogether, we recommend this Brita stainless steel filtered bottle. It has a nice, sturdy and durable design that was built to last for years to come. It’s equipped with an activated carbon filter that’s easy to replace every two months.
The lid seals tightly to avoid any drips or leaks as you go about your day. Furthermore, the stainless steel body is insulated to keep your water cool.
Why We Love It
This Brita bottle is made from durable stainless steel and is resistant to rust, as well as bumps and damage. It has a convenient slim design that’s easy to grab when on-the-go. Also, the bottle is insulated and will keep your pure water cold for long hours at a time.
A common problem with water bottles is leaks. However, the Brita Premium seals tight at the lid and won’t let a drop of water escape. You can easily bring it wherever needed without worrying about water damage in your bag.
You can quickly open the lid to hydrate while out and about. The straw is easy to drink from, and the filter sits at the top part of the straw. This means you won’t be missing out on the last few drops at the bottom due to a clunky filter.
Easy to Replace Filter
The filter will last up to 40 gallons and should be replaced every two months. Replacing the filter is a breeze:
- Remove the old and rinse the new under running water for 15 seconds.
- Place it firmly into the straw and attach it to the lid.
- Fill the bottle, and it will filter the water as you drink.
Keep In Mind
Lid Doesn’t Open All the Way
As you drink, you’re forced to either move the bottle around or tilt your head all the way to the back. Customers comment that the lid doesn’t open all the way, so it might press against your cheek, nose or chin as you drink.
|Filter Life||40 gallons|
|Bottle Capacity||20 ounces|
|Dimensions||3.2 x 3.2 x 10.8 inches|
3. Grayl Ultralight Water Purifier
For people who enjoy the outdoors, this filtered bottle is for you. Unlike other filtered water bottles, you won’t be drinking from a straw here. As you fill the bottle, simply press the top down, and the water will run through the filter.
Once you’re ready to take a sip, remove the lid and drink. There’s no need to suck or squeeze an impossible straw. The filter will remove many impurities in no more than 15 seconds.
Why We Love It
The filter incorporates three technologies to clean your water. The first is a two-layer non-woven ceramic fiber that creates a durable base. Secondly, it consists of a positively charged mesh of ions that bind to negative ions through ion exchange.
The third technology is the activated carbon, which removes any bad tastes or odors from the water. As a result, the filter will effectively remove heavy metals as well as a range of harmful chemicals. Furthermore, the filter is protected in a cartridge that keeps it intact through your wildest adventures.
As you’re hiking your way through the wilderness, packing light is key to a comfortable experience. This bottle is not only lightweight, but it’s also compact, making it the perfect fit for any backpack side pocket.
Easy to Get a Sip
When you’re craving some clean H2O while hiking, having to squeeze or suck your heart out to get a sip can be frustrating. Luckily, Grayl has made the drinking process much easier. All you have to do is fill, press and drink when needed.
Keep In Mind
Despite how effective this filter is, customers comment about wishing the bottle would hold a few more ounces. Although it’s designed to be filled as you go, it’s not always that we hike in areas with water sources.
|Filter Life||40 gallons|
|Bottle Capacity||16 ounces|
4. LifeStraw Go Water Bottle
LifeStraw is a very well-known brand when it comes to mobile water filtration, and the Go bottle is not disappointing. Fitted with a two-stage filtration system, this bottle will effectively remove many bacteria, parasites and chemicals from your water.
It’s super easy to take with you wherever you might need a sip of pure H2O thanks to the slim design and carabiner.
The filter is very thorough and will last you a long time, depending on water quality. Furthermore, the bottle is made out of BPA-free Tritan, and the mouthpiece is made from food-grade silicone.
Why We Love It
Thorough Two-Stage Filter
The two-stage filter includes a hollow fiber membrane filter that removes bacteria and parasites. It also consists of an activated carbon filter that removes chemicals such as chlorine as well as VOCs. In addition, the activated carbon works to improve the taste and odor of your drinking water.
If you’re often out hiking or camping along rivers or creeks, this water bottle will come in handy. The two-stage filter will effectively remove up to 99.99 percent of waterborne bacteria and protozoan parasites.
Each stage of the filter will last for a long time. The microbiological filter can last up to 264 gallons. On the other hand, the activated carbon filter will last up to 26 gallons. Still, you should be able to easily go two months between replacements.
Most importantly, though, the filters are easy to find and a breeze to replace.
Excellent for Intense Activities
If you enjoy rock climbing, sailing or any other intense activity, you need a water bottle that can come along.
The LifeStraw Go is the perfect addition to any active person’s regime. Not only is the design sturdy, but it also comes with a built-in carabiner. That way, you can literally attach the bottle to you.
Keep In Mind
Hard to Suck
Unfortunately, sucking also seems to be a problem with this bottle. It can be very hard to get the water started as it requires a few hard sucks. This can be difficult for certain individuals.
|Filter Life||1.056 gallons/126 gallons|
|Bottle Capacity||23 ounces|
|Dimensions||9 x 3 x 3 inches|
5. SurviMate 4-Stage Filtered Water Bottle
Another excellent choice for nature-loving individuals is the SurviMate — this bottle is super easy to carry thanks to the light and slim design. Furthermore, the bottle is made out of food-grade Tritan copolyester, making it BPA-free, FDA-approved and heat-resistant.
To make sure you have clean water to drink, it’s fitted with a four-stage filtration system. This is highly effective and excellent for when you’re out on long hikes.
Why We Love It
The SurviMate water bottle is equipped with advanced four-stage filtration:
- Medical-grade hollow fiber membrane filter.
- Coconut shell activated charcoal.
- Antibacterial beads.
- Medical-grade PP cotton filter.
It effectively removes pollutants as tiny as 0.01 microns with every sip.
Excellent for Hikes
As you’re enjoying the pretty scenery, it’s important to stay hydrated. With this in mind, the SurviMate was built to become your new hiking essential. It’s light to carry and has a slim design that’s easy to hold.
In addition, the wrist band sits securely around the neck of the bottle and won’t come loose as you’re moving. SurviMate claims that you can easily fill the bottle with any water you might stumble upon when out in the wild.
Not only is the filter very thorough, but it’s also long-lasting. SurviMate claims it will last up to a little under 400 gallons, depending on water quality.
Keep In Mind
Slow to Drink
Due to the four-stage filtration, getting a quick sip of H2O might be easier said than done. Customers comment that it requires five to eight hard sucks to get it started, which can be challenging for some.
|Filter Life||396 gallons|
|Bottle Capacity||22 ounces|
|Dimensions||9.4 x 3.1 x 3.1 inches|
6. Mountop Portable Filtered Bottle
If you’re a hike-loving individual, you’re going to go crazy for this bottle. It’s the perfect companion for long hikes in beautiful scenery. The filter is an advanced two-stage carbon filter that effectively purifies water on-the-go.
Mountop claims that you can safely fill your hiking bottle from rivers or creeks on the way. The slim design makes it easy to carry, and the addition of the top loop makes this even easier.
Why We Love It
This bottle is equipped with a two-stage advanced filter. It’s a hollow fiber membrane filtration that effectively removes particles larger than 0.01 diameter microns. Furthermore, the activated carbon filter reduces chlorine odor, as well as undesirable tastes.
Unlike many other filtered water bottles, the Mountop bottle has a slim design. It reaches 9.1 inches in height and 3.2 inches in diameter — easy to grab as you’re outdoors.
The filter will last you a little under 400 gallons, which is enough to stay with you for two to three months. In addition, the filter is easy to get your hands on, thanks to being slim and lightweight.
Excellent for Camping and Hiking
The bottle is super easy to carry, with the top loop fit for two fingers.
It also helps that the filter is effective. As a result, you can safely fill the bottle from rivers, creeks or lakes as you go.
This filtered water bottle also stands sturdy on even and uneven ground. So you can be sure it won’t easily tip over when not in use.
Keep In Mind
Reviewers report that if the bottle is overfilled, it might leak when not in an upright position. To avoid this, fill it up to a little less than the limit.
|Filter Life||400 gallons|
|Bottle Capacity||22 ounces|
|Dimensions||9.1 x 3.2 x 3.2 inches|
7. Bottled Joy 25-Ounce Filtered Water Bottle
This filtered water bottle from Bottled Joy is an excellent choice for anyone who enjoys pure water with every sip. It can hold 25 ounces and the two-stage filter will last up to 55 gallons, or three months.
It has a slim design that’s lightweight and easy to carry. The filter is very thorough and will remove bacteria as well as parasites. Maintaining the bottle itself is a breeze as it can be washed in the dishwasher or scrubbed with the included brush.
Why We Love It
If you’re looking for a filter that will last for long without needing replacement, this is for you. This two-stage filter will last for up to 55 gallons before replacement is needed. On top of this, the first stage of filtration is a hollow fiber membrane filter that removes bacteria and parasites from your water.
Chlorine in water can give a bad odor as well as taste. It can make you feel like you’re drinking chemicals.
However, the second stage of the filter is an activated carbon filter. This layer effectively improves the taste and odor of the water by adsorbing chemicals and other pollutants.
Easy to Clean
For your convenience, Bottled Joy has included a special brush and sponge to help you clean the bottle thoroughly. Additionally, the bottle itself is perfectly safe to wash on the top shelf in the dishwasher.
Keep In Mind
Requires Hard Sucking
Despite only being a two-stage filter, reviewers mention that it still requires a few hard sucks to get water through. Several found it to be quite difficult for everyday use.
|Filter Life||55 gallons|
|Bottle Capacity||25 ounces|
|Product||Best||Filter Stages||Filter Life||Bottle Capacity||Dimensions||Weight|
|Epic Nalgene OG Bottle||Large||Multi-stage||75 gal.||32 oz||N/A||N/A|
|Brita Stainless Steel Bottle||Stainless Steel||Single||40 gal.||20 oz||3.2 x 3.2 x 10.8″||N/A|
|Grayl Ultralight Purifier||Strawless||Three||40 gal.||16 oz||N/A||N/A|
|LifeStraw Go Water Bottle||Intense Activities||Two||126 gal.||23 oz||9 x 3 x 3″||6 oz|
|SurviMate 4-Stage Bottle||Long-Lasting Filter||Four||396 gal.||22 oz||9.4 x 3.1 x 3.1″||6.7 oz|
|Mountop Portable Bottle||Hiking||Two||400 gal.||22 oz||9.1 x 3.2 x 3.2″||7.4 oz|
|Bottled Joy Bottle||25-Ounce||Two||55 gal.||25 oz||N/A||N/A|
Frequently Asked Questions
How Long Does the Filter Last?
Most filters will last for up to 40 gallons of water, which is about 5,120 ounces. Depending on usage, it might last you one or two months. It’s crucial to replace the filter before you hit the 40-gallon mark to ensure it’s still safe.
Keep in Mind
Are Filtered Water Bottles Dishwasher Safe?
Whether or not your filtered water bottle is dishwasher safe depends on the material. Common materials include stainless steel, titanium and plastic. Before putting your bottle in the dishwasher, make sure you read the manual to see if it’s safe.
Most dishwasher-safe bottles will be washed on the top shelf — make sure you remove the filter beforehand. We highly recommend choosing a dishwasher-safe bottle. This will be much more convenient for you, especially if you use it daily.
How Do I Clean It?
If your bottle isn’t dishwasher-safe, don’t fret. They’re easy to clean by hand. All you have to do is take the bottle apart and wash it in warm, soapy water. Use a long-handled brush to scrub the inside of the bottle and a sponge for the lid and mouthpiece.
Will the Filter Remove Important Minerals from My Water?
Because most bottles are equipped with an activated carbon filter, they won’t remove minerals.
Activated carbon is designed to remove harmful contaminants such as chlorine and VOCs, but they won’t affect salt or minerals. As a result, you can continue to enjoy purified water rich in minerals that keep your body happy and healthy.
Filtered water bottles are super handy for anyone who enjoys clean water wherever they go.
Most bottles are equipped with an activated carbon filter that can remove chemicals and VOCs. They work by filtering the water as you’re drinking, which can cause the water to run slowly through the straw.
When finding the best filtered water bottle for you, we recommend that you consider where it will be used. You should also consider which capacity will suit you and your needs the best.
Where possible, think how long you’ll be out on a trip and go for a bottle with enough capacity to last that length of time. Doing so will prevent you from running out of high-quality, filtered water.