Treating your mains water supply is a great way to encourage a more positive, wellness lifestyle, but what about when you’re outside of the home? Most of us spend at least some portion of the week in an office, education space, or simply out and about (at least, beyond COVID lockdowns). So why not carry over those filtering benefits to the rest of your weekly routine, with the addition of a filtered water bottle?

Filter water bottles give you peace of mind that all of the water you’re drinking is of good quality, while also lessening your environmental impact and plastic consumption. Here’s our list of the best filtered water bottles available now:

GRAYL Ultralight Water Purifier [+ Filter] Bottle (Coyote Amber)
  • COMPACT: 16 oz. purifier bottle makes safe, clean drinking water from virtually any freshwater source
  • FAST AND EASY-TO-USE - Ideal for international travelers, hikers, and emergency prep kits
  • REMOVES WATERBORNE PATHOGENS (e.g. Hepatitis A, Norovirus, Rotavirus); Bacteria (e.g. E. coli, Salmonella, Cholera); and Protozoan Cysts (e.g. Giardia, Cryptosporidium)
  • AWARD WINNING [OnePress] design — Just Fill from any sketchy freshwater source, then Press on a low surface (e.g. ground), then Drink safe water, anywhere
  • FILTERS particulates (e.g. sediment, silt), many chemicals (e.g. chlorine, benzene) and heavy metals (e.g. lead, arsenic); zero aftertaste, eliminates bad odors, improves clarity and flavor
Epic Nalgene OG | Water Bottle with Filter | USA Made Bottle and Filter | Dishwasher Safe | Filtered Water Bottle | Travel Water Bottle | BPA Free Water Bottle | Removes 99.99% Tap Water Impurities
  • ✅ FILTERED WATER BOTTLE (LEAD WATER FILTER): This Nalgene water bottle with filter uses depth & adsorption filtration to be the perfect water purifier. Adsorption removes particulates via the activated coconut carbon fiber mesh surface areas, which adsorbs contaminants such as cysts, heavy metals, chemicals & pharmaceuticals. Depth filtration (6mm thick) involves the removal of suspended waste products as they try to pass through the millions of layers of coconut carbon fiber block.
  • ♻️ NO MORE EXPENSIVE SINGLE USE PLASTIC WATER BOTTLES: This water bottle with filter for tap water saves the Earth over 550 plastic single use water bottles. This USA made eco-friendly organic coconut shell based carbon fiber mesh filter is an environmentally friendly filter that is tested by 3rd party labs. Rigorously tested against NSF/ANSI 42, 53, 401, & P473 (NSF 53 Water Filter), this personal water filter will have you drinking clearly filtered water from a BPA free water bottle.
  • ✅ REUSABLE WATER BOTTLE: At Epic Water Filters, we believe in building products that never become obsolete. When you invest in our filtered water bottle, you get a modular system designed to perform for years to come. Whether you are using your water bottle with filter for tap water or you need a filtered water bottle for travel abroad, the interchangeable filter system has you covered. Searching for travel necessities, this portable water filter is the perfect travel water bottle.
  • ✅ “YOU’LL LOVE IT” GUARANTEE: Our 100% money-back guarantee is as clear as our water. Either you love your American made Epic Nalgene OG Water Bottle with Filter, or you send it back and receive a full refund. Our commitment to world-class customer service includes: 100% lifetime satisfaction guarantee | Friendly phone and email support | Promotional discount codes | Dishwasher Safe Water Bottles | Mom says "Best Water Bottle" Dad says "Coolest Water Bottle" Kids call it "Next Level"
  • ✅ SIMPLE, SAFE & AMERICAN MADE FILTERING WATER BOTTLE: The 32 oz Water Bottle by Nalgene is an American made legend. This premium filtering water bottle is the perfect pregnancy water bottle and people searching for large water bottles for adults will love it. Spanish speakers looking for filtro de agua, we have you covered. Want to get wild? Switch your filter from our "Everyday" filter to our "Outdoor Adventure Filter" (not included) None of the other filter water bottles can compete.
Brita Stainless Steel Water Filter Bottle, Jade, 32 Ounce, 1 Count
  • Brita’s Premium Filtering stainless steel bottle holds 32oz of water, and is designed with a Brita filter that fits in the straw that makes water taste great and keeps water cold for 24 hours
  • Get great tasting water without the waste; by switching to Brita, you can save money and replace 1,800 single-use plastic water bottles* a year
  • This 32oz Brita water bottle is made from durable, double-wall insulated stainless steel to keep water cold and features a leak-proof lid; Height 10.6"; Diameter 3.8"; Weight 1.1 pound
  • The filter reduces chlorine (taste and odor) and more with every sip; compatible with Brita water bottle replacement filters
  • For the freshest-tasting water, the Brita stainless steel water bottle filter should be replaced after 40 gallons or approximately every two months

How do filtered water bottles work?

  • Most of the filters you’ll find in a portable water bottle work via activated charcoal cartridges. This is material with a high carbon purity that’s been ground-up and packed into a structure that maximizes surface area. When water runs through the filter, organic carbon-containing compounds such as chlorine and run-off from heavy industry are adsorbed to the charcoal’s surface, leaving you with purer, better-tasting H2O.

  • Other filtered water bottles intended to handle more extreme water sources may use their own, bespoke filtration designs. Many of these utilize ‘squeeze’ mechanisms, requiring the user to manually push water through a series of porous materials. These designs, with the extra manual pressure, often allows devices to gain NSF Standard 53 certifications. This means they’re capable of taking out potentially harmful contaminants found in untreated water sources, such as bacteria and protozoa.

  • Aside from the technical aspects of filtered water bottles, the wider principle of compact filtering devices is to make water treatment as portable as possible, thereby encouraging more use. Instead of needing to head to the kitchen, refrigerator, or work station multiple times per day, a water bottle ensures you always have a steady supply of filtered water, ready to sip.

Brita Plastic Water Filter Bottle, 26 Ounce 1, Sea Glass
  • The BPA-free Brita Premium Filtering Bottle holds 26 oz of water, and is designed with a Brita filter that fits in the straw and makes water taste great
  • Get great tasting water without the waste; by switching to Brita, you can save money and replace 1,800 single-use plastic water bottles a year
  • It’s the convenient way to stay hydrated at home or on the go; sleek, leak-proof filtered water bottle is car cup holder friendly, and features a built-in carrying loop, easy open lid and is top rack dishwasher safe for easy cleaning; Height 10.5"; Diameter 3"; Weight .5 pounds
  • The filter reduces chlorine (taste and odor) and more with every sip; compatible with Brita water bottle replacement filters
  • For the freshest-tasting water, the Brita water bottle filter should be replaced after 40 gallons or approximately every 2 months; 16.9 oz water bottle

Why are filtered water bottles a good idea?

Public infrastructure

With the water treatment industry focusing on home filter solutions, it can be easy to neglect the fact that many public institutions use tired or outdated infrastructure, which may be a better candidate for filtering than the plumbing in your home.

Schools are a frequent offender here. With children spending at least half their day in the classroom, the benefits of a home filtering can be easily outweighed by an inadequate water fountain. For example, a 2019 Canadian study found unsafe levels of lead in a worrying number of school and daycare settings.

Likewise, many of us spend large portions of our day in offices, commercial buildings, and other public spaces—most of which have uncertain or unclear water treatment policies. Carrying a filtered water bottle allows you to transfer good drinking practices from the home out into the world, giving you the confidence to drink from a wider array of sources.

Daytrips, hikes, and travel

Sometimes a filtered water bottle is more of a necessity than a luxury. In areas where the safety of water can’t be assured—be it a campsite, foreign city, or places with old plumbing infrastructure—carrying a portable filter bottle can mean there’s no need to resort to more intensive sanitation methods such as boiling or chemical treatment.

Good habits = positive effects

Knowing that you always have access to good quality drinking water is a great way to encourage better drinking habits. Because filtering water is an active, physical action (even if it’s simply filling the bottle and letting the filter do its thing), it fits into the category of activities most likely to bring about long-term habit formation and boosts general wellbeing.

The benefits aren’t just personal, however. Filtered water bottles are an environmentally sound solution to portable water—in more than one way. A reusable bottle will significantly reduce your consumption of single-use plastics, while also doing away with the need to introduce chemicals such as iodine or chlorine into sensitive or highly trafficked environments such as backcountry and wilderness areas.

FAQs

Essentially, yes. Unless a product makes a specific filtering claim, there won’t be too much difference between your average filter water bottle and your average Brita pitcher or faucet-mounted device.

Of course, more intensive home filters, such as those that employ reverse osmosis or distillation, may offer a superior level of contamination removal. Likewise, bottles designed for expedition usage will focus on the most common health hazards found in untreated water.

A filter water bottle cannot replace traditional water treatment methods such as boiling or chemical purification—but they’re also not designed to. Whereas iodine or a three-minute boil should remove all nasty impurities from a water source, including viruses, a filter bottle will only handle microorganisms down to certain micron sizes.

However, that size is usually calibrated to handle the main water concerns for a specific region. In the U.S. and Canada, this includes bacteria like E. coli and salmonella, and protozoa such as Cryptosporidium and Giardia. If you are planning to use a filter water bottle to turn unsafe water sources into drinking water, always be sure to confirm that a device’s exact specifications are what you really need.

Yes! While the filtering power of bottles may differ across products and brands, all filter water bottles are concerned with producing purer, more drinkable water. As a result, these products encourage more frequent water consumption (with the added bonus on contaminant removal) which can only be good news for your overall health.