10 Best Filtered Water Bottles 2021

If you want to drink the purest water possible, then you’ve probably considered buying a water bottle with a filtration system. An ultra-portable water filter removes chemicals and impurities from your drinking water to give you peace of mind as well as great tasting water. The best water bottle with filter capabilities could even function as a life-saving device in a survival situation.

There are a lot of filtered water bottles on the market today. They come in all kinds of shapes, sizes, colors, and levels of filtration. For the uninitiated, it can be confusing trying to decide which one to buy. That’s why we’ve compiled this shopping guide to help you find the best filtered water bottle to meet your needs.

Top 10 Filtered Water Bottles Comparison Table

PictureNameVolumePriceRating (1-5)
Rating (1-5)
1. LifeStraw Go Water Bottle with Integrated 1,000 Liter LifeStraw Filter23 ounces$$$$4.2
2. CamelBak Groove .6L Water Bottle20 ounces$$$4.2
3. HydroBlu Clear Flow Water Filter - 1,000-L Carbon and Hollow Fiber Membrane Water Filter Straw16 ounces$$$4.0
4. refresh2go 26oz Curve Filtered Water Bottle with Grip - Purple26 ounces$3.9
5. KOR 700 mL Nava Filter Water Bottle Gunmetal22 ounces$$3.9
6. Bobble Water Bottle with Carry Cap, 18.5-Ounce, Blue18.5 ounces$$$3.8
7. Invigorated Water pH REVIVE Alkaline Water Filter Bottle & Carry Case25 ounces$$$$3.7
8. Thermos NSF/ANSI 53 Certified 22 Ounce Tritan Water Filtration Bottle, Smoke22 ounces$$3.7
9. Brita Filtered Water Bottle (includes 1 Filter), Hard Sided, BPA Free23.7 ounces$$3.6
10. OKO H2O Level-2 Advanced Filtration Water Bottle22 ounces$$$3.6

What to Look for in a Filtered Water Bottle

There are a lot of things to consider when purchasing a water bottle with a filter. Here is some basic information to help you find the best filtered water bottle to meet your needs.

What’s in Your Water

There are a lot of things in your water that can’t be seen with the naked eye. A good water filter will remove the unwanted stuff and leave behind fresh great-tasting water. There are three basic kinds of contaminants that water filters remove from your drinking water.

  • Bacteria and Parasites. Believe it or not, there are tiny microscopic organisms swimming around in most water. You may not be able to see them, but they are there. Most of them are harmless. Some are even beneficial, but some like Cryptosporidium or Clostridium can make you seriously sick.
  • Viruses. These tiny microorganisms differ from bacteria, even though we often lump them into the same category. The most significant difference is size. Viruses can be hundreds of times smaller than the smallest bacteria, making them difficult for many filters to remove from your drinking water.
  • Chemical Compounds. Some chemical compounds, like minerals, find their way naturally into drinking water. Others are added intentionally, such as fluoride. Still, others seep into drinking water via metal plumbing or environmental pollution. Many chemical compounds can have a detrimental effect on the body, especially when consumed over the years.

Types of Water Bottle Filters

Most filtered water bottles employ one of two common methods of filtration.

  • Carbon Filters. This is the most common type of filtration. These filters use a layer of activated carbon which removes particles as the water passes through the filter. The finer the filtration material, the smaller the particles that the filter can remove. Filters in this type of water bottle need to be replaced periodically to maintain effectiveness.
  • Ultraviolet Filters. This type of filter is much less common, but are very effective at removing potentially dangerous microorganisms, by using intense UV light. Often useful in survival situations, this type of filtration does not remove chemical compounds or improve water taste.
  • Combination Filters. Filtered water bottles that use a combination of UV and activated carbon to deliver a one-two punch against water contamination.

Top 3 Best Filtered Water Bottle Reviews

1. LifeStraw Go Water Bottle

If you’re looking for extreme filtration, look no further than the LifeStraw Go Water Bottle. Each LifeStraw filter filters up to 264 gallons of water, removing 99.9 percent of waterborne parasites, as well as E. Coli, Giardia, Cryptosporidian oocysts, and many other contaminants. LifeStraw makes clean potable water available anywhere at a moment’s notice. You can fill the leak-proof, BPA-free bottle from any water source – be it tap, pond, or stream – and drink it straight from the integrated straw filter.

This filtered water bottle is perfect for wilderness hiking, camping, or a simple trip to the gym. It gives you pure, great-tasting water no matter how far away from civilization you are. Employing an advanced hollow fiber membrane and a carbon capsule that reduces bad taste, odor, and contamination all in an easy-to-use design, the LifeStraw Go Water Bottle is the best filtered water bottle available today.

2. CamelBak Groove .6L Water Bottle

The sustainable plant-based filter in the CamelBak Groove lasts up to 3 months and filters 48 gallons of water. It comes with a lifetime guarantee and is certified to reduce tap water taste and odor, as well as levels of chlorine.

This filtered water bottle is easy to refill, and the filter is conveniently located right in the straw. The bottle itself is spill-proof and BPA-free, and with its handy integrated loop handle you can enjoy refreshing, great-tasting water wherever you go.

3. HydroBlu Clear Flow Water Filter

The HydroBlu Clear Flow Water Filter comes with a durable BPA-free Tritan water bottle. The Micron Hollow Fiber membrane removes 99.999 percent of dangerous bacteria and protozoa while the activated charcoal removes water discoloration, bad tastes, and heavy metals.

This filtered water bottle is great for outdoor survival situations or just surviving your urban workday. Take it camping, hiking, or on your next international adventure where water quality might be an issue. Scoop water straight from a pond or stream or fill from the tap. The source doesn’t matter, you’ll still be able to quench your thirst with clear safe drinking water.

The filter effectively filters up to 1,000 gallons of water. Water flow slows when it is time to replace the filter, so you don’t have to guess.