7 Best Filtered Water Bottles, According to Experts

The Lifestraw Go Series water bottle stands out with its stainless steel and double-wall vacuum construction, which makes the bottle durable and helps ensure your drink stays cold. With the large one-liter capacity, you won’t find yourself needing to refill as often.

This water bottle has two filters: one activated-carbon filter that improves taste by reducing matter such as chlorine, and one membrane microfilter, which effectively removes contaminants such as microplastics, certain bacteria and more. The claims are substantiated by third-party data the brand shares on its website. According to the brand, with this bottle, you can fill up from sources like gas stations during road trips without issue. We didn’t test the bottle in gas stations, but one of our pros successfully used it to drink water in both Mexico and Iceland, from several airport taps and from a waterfall without encountering any issues. Our expert noted that she also uses the non-insulated versions (available in 22-ounce or 1-liter sizes) and loves them as well.

Testers like the easy-to-carry large handle and that the bottle is easy to clean. One drawback one of our testers noted is that when traveling on an airplane with this bottle, you need to release built-up pressure by opening the top lid before drinking; otherwise, the contents may leak. The straw is positioned at the center of the bottle, which some testers found easy to drink from, while others prefer a straw that's located closer to the bottle's edge. Hand washing is recommended, but the bottle is dishwasher safe.

The Larq bottle boasts a sleek design with a detachable carabiner clip, making it convenient for travel and commuting. Similar to Larq's filter pitcher, which is our pick for the best water filter pitcher to remove bacteria, the brand's bottle helps remove lead, heavy metals, chlorine and particulates; these claims are supported by independent lab test data available on Larq's website.

It comes in both 25- and 17-ounce sizes. The 17-ounce bottle is one of the smaller filter bottle options that we tested, and it's good for someone who wants a slim, portable bottle rather than a larger size that may not fit into a cup holder. One tester stated that the 25-ounce size fits easily into a side pocket of their backpack. They found the drinking spout easy to open and close. Our testers gave this bottle high scores for its durability and light weight.

Notably, one tester praised the ease of drinking compared to other filter bottles that often require more effort to suck water through the filter, a common issue with water filter bottles. One downside is that the opening is relatively small, so it’s difficult to hand wash without a bottle brush. Even though Larq recommends hand washing, the bottle is dishwasher safe.

In our research, we saw the Grayl filtered water bottle frequently recommended as a travel pick because the brand claims it filters out a wide variety of contaminants, including certain viruses and bacteria that other water filter bottles do not eliminate. According to Grayl, the filtered water bottle effectively eliminates particulates, chemicals, protozoa and heavy metals.

While we haven’t tested this bottle ourselves or reviewed the scientific data to validate the brand's claims, we did find that Amazon reviewers stated the bottle worked well for their travels or outdoor adventures. Unlike other filter bottles that require sucking water through a straw that houses a filter, the GeoPress works by pressing the water through the filter first, making drinking easier.

To filter the water, fill the outer cup to the fill line with unfiltered water, then place the inner press into the outer cup; on a flat surface, push the lid and inner cup down. The pressure from pushing filters the water into the inner cup, which is ready to drink. The filter can handle 65 gallons before needing to be replaced, making it one of the longest-lasting filters on this list.

We like this Clearly Filtered water bottle thanks to its clear design that allows for easy monitoring of water intake — an excellent choice if you need help hitting your daily hydration goals. According to the brand, this filter bottle effectively removes over 220 contaminants, including chlorine, fluoride, lead and more, while retaining beneficial minerals. Although we haven't independently verified the data, the brand provides test results on its website.

The manufacturer states that the bottle is made with BPA and BPS-free medical-grade Tritan plastic, which Clearly Filtered claims offers the "gloss and sparkle of glass" while being shatter-resistant, unlike traditional glass bottles. With a 24-ounce capacity and a weight of less than half a pound, it's also a convenient option to take with you when you leave the house. The one downside is that the filter needs to be changed every 25 gallons, which is more often than others we've tested.

We love the Contigo filter water bottle whether we’re running errands or just sipping at home, especially when it comes to everyday use with tap water. Multiple testers raved how impressed they were with the taste of the filtered water, noting that it significantly improved the taste of their regular tap water compared to other water filter bottles they've tried. One tester even said, “It tastes better than my refrigerator-filtered water.” This isn’t surprising considering it removes 99% of the chlorine taste and odor, a claim we verified with independent test data.

The attached loop on the handle makes it easy to carry, and the soft pop-up straw makes drinking more comfortable. Overall, testers liked this water bottle and will continue to use it, but it is harder to suck water through the straw than some other water filter bottles they’ve tried.