Backpacking is a great way to explore nature and enjoy the outdoors. But when you are on the trail, you need to have access to clean and safe water. That’s why having a reliable water filter is essential for any backpacker. In this article, we will review some of the best backpacking water filters on the market and help you choose the right one for your needs.

Lifestraw Personal Water Filter

Experience the Lifestraw Personal Water Filter, a portable guardian of hydration that ensures you sip safely wherever your adventures take you. Banishing worries with each sip, its microfiltration membrane annihilates a staggering 99.999999% of waterborne bacteria, biding farewell to E. coli and Salmonella. Parasites, be warned: 99.999% of Giardia and Cryptosporidium won’t make it past.

The Lifestraw is more than just a water filter. It’s also a weapon against microplastic pollution, eliminating particles as small as 1 micron and reducing cloudiness to a remarkable 0.2 microns. Certified by laboratories that follow the standards of the US EPA, NSF, and ASTM, this filter is your reliable protector against contaminants.

The Lifestraw is light and portable, weighing only 1.6 ounces and fitting easily into your backpack. It works well in any temperature, ranging from 1 to 60 degrees Celsius. It also lasts long, providing 4,000 liters (1,000 gallons) of pure hydration with one filter. Moreover, each purchase supports a good cause: giving a school child access to safe drinking water for a whole school year. Enjoy eco-friendly adventures with BPA-free materials and indulge in stress-free drinking on your trips.

Pros:

• Microfiltration membranes remove 99.999999% of waterborne bacteria
• Eliminates 99.999% of waterborne parasites and microplastics
• Rigorously tested with standard protocols by US EPA, NSF, and ASTM
• Long filter lifespan: 4,000 liters (1,000 gallons)
• Every purchase supports providing safe drinking water to a school child
• Compact and lightweight: 8.66″L x 0.98″W x 0.98″H, 1.6 ounces
• No electricity or battery power is required
• Operates in temperatures ranging from 1 to 60 degrees Celsius
• Eco-friendly with BPA-free materials

Cons:

• Limited to filtering water, not suitable for other liquids
• Requires proper use and maintenance for optimal lifespan

Sawyer Products Mini Water Filtration System

Compact yet powerful, the Sawyer Products Mini Water Filtration System is your ultimate companion for outdoor adventures. Weighing just 2 ounces and fitting in the palm of your hand, this high-performance 0.1-micron absolute inline filter is a game-changer for hikers, campers, scouts, and travelers alike.

Tested to rigorous standards, each MINI unit removes a staggering 99.99999% of bacteria (including salmonella and E. coli) and 99.9999% of protozoa (such as giardia and cryptosporidium). It goes a step further by eliminating 100% of microplastics, ensuring every sip is clean and pure.

Attach it to the included 16-ounce reusable squeeze pouch, standard disposable water bottles, or hydration packs. Alternatively, use the 7-inch drinking straw to drink directly from the water source. With a filter capacity of up to 100,000 gallons, this MINI Water Filter is a reliable, long-term solution for your hydration needs.

Crafted from durable plastic, the system comes complete with a cleaning plunger for easy maintenance. Whether you’re trekking through the wilderness or preparing for emergencies, trust the Sawyer Products Mini Water Filtration System to keep you refreshed and ready for any adventure.

Pros:

• Lightweight and compact design for easy portability
• A high-performance 0.1 Micron filter removes bacteria, protozoa, and microplastics
• Versatile attachment options for various water sources
• Long-lasting filter capacity of up to 100,000 gallons
• Durable plastic construction ensures reliability

Cons:

• The filter may need replacement if it is suspected of freezing damage
• Limited pouch capacity (16 ounces)
• Initial wetting in freezing temperatures may pose a risk

Katadyn Befree Water Filter

Explore the great outdoors confidently with the Katadyn BeFree Water Filter, your ultimate companion for on-the-go hydration. This portable 0.1-micron water filter goes beyond EPA standards, removing 99.9999% of bacteria and 99.9% of protozoa like Giardia and Cryptosporidium. Its collapsible 1.0L Hydrapak soft bottle flask effortlessly fits into tight spaces, making it a must-have for jacket pockets, purses, backpacks, and fly vests.

The EZ-Clean Membrane simplifies maintenance—just shake or swish the filter to remove debris; no backflushing or extra tools are needed. Filtering up to 1,000 liters of water without chemicals or additional devices, this innovative system ensures you stay hydrated with its fast-flow channels. The Stay Clean Drink Nozzle guarantees a sanitary sip every time, and it’s easily replaceable with standard plastic water bottle caps.

With dimensions of 4.25 inches in length, 10 inches in width, and 3 inches in height, and weighing a mere 2.24 ounces, the Katadyn BeFree is a featherlight solution for adventurers. Its maximum flow rate of 2 liters per minute and durable synthetic material construction make it a reliable choice for your outdoor escapades. Embrace the freedom of pure, clean water, wherever your journey takes you.

Pros:

• 0.1-micron filter exceeds EPA standards
• Collapsible design for compact storage
• EZ-Clean Membrane for easy maintenance
• Filters up to 1,000 liters without chemicals
• Fast flow rates with free flow channels
• Stay Clean Drink Nozzle for sanitary hydration
• Lightweight at 2.24 ounces
• Durable synthetic material construction

Cons:

• Limited to a 1.0L capacity
• Replacement caps not included
• May require frequent cleaning in heavily contaminated water sources

Steripen Ultra Uv Water Purifier

Compact yet powerful, the SteriPEN Ultra UV Water Purifier is your go-to solution for clean and safe drinking water anywhere you go. Harnessing the proven efficiency of UV light, this innovative purifier annihilates over 99.9% of bacteria, viruses, and protozoa, ensuring that every drop is free from harmful contaminants.

With a sleek design measuring 7.3 inches in length, 1.3 inches in width, and 1.6 inches in height, the SteriPEN Ultra is your portable guardian against waterborne threats. The simple OLED display provides all essential information at a glance: treatment progress, lamp status, and battery life. Speaking of which, enjoy the convenience of up to 50 treatments per charge, translating to an impressive 15,000 liters of purified water.

Never worry about running out of power; the SteriPEN Ultra is USB rechargeable from your computer, wall outlet, or even a solar panel. Crafted from durable plastic, it weighs a mere 4.8 ounces, making it an effortless addition to your travel essentials.

In the box, you’ll find the SteriPEN Ultra UV Water Purifier, a USB charging cord for convenient power-ups, and a protective case for hassle-free transport. Embrace the freedom to explore without compromising on hydration—trust the SteriPEN Ultra to deliver purity in every sip.

Pros:

• Powerful UV light destroys over 99.9% of bacteria, viruses, and protozoa
• Compact and portable design for on-the-go water purification
• OLED display shows treatment progress, lamp status, and battery status
• USB rechargeable for convenience from various sources
• Long battery life with up to 50 treatments per charge, equivalent to 15,000 liters
• Durable plastic construction for lasting reliability
• Lightweight at 4.8 ounces for easy portability
• Includes USB charging cord and protective case

Cons:

• Limited capacity of 50 liters per purification cycle
• Relies on battery power, requiring occasional recharging
• It may not be suitable for large groups due to capacity limitations

Compact and reliable, the MSR MiniWorks EX Water Filter is your essential companion for outdoor adventures. Weighing just 1.3 pounds, this lightweight microfilter pump delivers clean, odor-free water at an impressive rate of one liter per minute. Perfect for hiking, backpacking, camping, travel, survival, and emergency preparedness, it’s a must-have tool for the adventurous spirit.

Featuring a replaceable carbon and ceramic filter, the MiniWorks EX effectively removes bacteria, protozoa, organic compounds, and particulates, ensuring your hydration is always pure. Meeting NSF protocol P231 standards, it removes 99.9999% of bacteria and 99.9% of protozoa, providing reliable water purification. With one replaceable filter cartridge that can treat up to 2,000 liters, you’re equipped for extended journeys.

Designed with convenience in mind, the pump is compatible with a variety of wide-mouth water bottles and hydration bladders (sold separately). Crafted from durable materials and proudly made in the USA, the MiniWorks EX Filter comes with a manufacturer’s limited lifetime warranty, offering peace of mind for your outdoor pursuits.

Compact at 10 inches in length, 4 inches in width, and 7 inches in height, the MiniWorks EX is hand-powered, giving you autonomy over your water purification. The package includes essential components like microfilters, hoses, and caps, all neatly stored in the included bag. Upgrade your adventure gear with the MSR MiniWorks EX Water Filter, your key to clean, reliable hydration on the go.

Pros:

• Lightweight and portable
• Efficient filtration of bacteria, protozoa, and organic compounds
• Fast pumping at one liter per minute
• Compatible with various wide-mouth water bottles and hydration bladders
• Meets NSF protocol P231 standards
• Durable construction with a replaceable filter cartridge
• Treats up to 2,000 liters of water
• Manufacturer’s limited lifetime warranty
• Made in the USA

Cons:

• Requires manual pumping for power
• Wide-mouth water bottles and hydration bladders are sold separately

Best Backpacking Water Filters Buying Guide

Going on a backpacking trip often means carrying all the water you’ll need or finding natural sources along the way. However, most natural water sources contain bacteria, protozoa, and other contaminants that can make you sick. Using a water filter designed for backpacking allows you to drink from lakes, streams, and other water sources safely. Backpacking water filters removes dangerous contaminants, pathogens, and particles from water while keeping beneficial minerals. This makes them extremely useful for wilderness adventures where reliable drinking water may be scarce. When shopping for a backpacking water filter, there are several key factors to consider before making a purchase.

Types of Water Filters

There are three main types of filters used in portable backpacking water systems: pump filters, straw filters, and gravity filters. Pump filters use a hand-operated pump to force water through a filtering element. They are reliable and filter water quickly, but they require effort to operate. Straw filters allow you to drink directly from the water source through the filter. They are convenient but have slower flow rates. Gravity filters operate on their own without pumping or sucking. The water filters passively under gravity power. Gravity models filter a lot of water quickly with minimal effort but can be bulkier. Most filters use a combination of dense mesh screens, activated carbon, and other substrates to remove particulates, bacteria, protozoa, and even viruses.

Important Features

Effectiveness

The most critical metric for a backpacking water filter is its contaminant removal capability. At a minimum, the filter should remove protozoa like giardia and cryptosporidium. Bacterial removal is also essential. Virus removal capability is an added benefit of the most rigorous filtration. Pay close attention to the micron rating, which determines the size of the particles and pathogens being filtered. The smaller the microns filtered, the more contaminants are removed.

Speed & Ease of Use

Backpacking means moving over various terrains, so you want a lightweight, easy-to-use filter. The flow rate determines how quickly you can filter water. Faster flow rates allow you to filter more water in less time. Ease of use features include an ergonomic design, no pumping required, and compatibility with water bottles and hydration bladders for on-the-go use. Any features that make filtering water simpler with less effort are ideal for the trails.

Reliability & Durability

You need a sturdy filter that will not break or leak on rugged hikes. Find filters made of durable materials like stainless steel, BPA-free plastics, and quality tubing. The filter cartridge lifespan indicates how long it lasts before needing replacement, usually measured in thousands of gallons. High cartridge lifespans increase value over time. All parts should close securely to prevent leaks in your pack. The filter must withstand bumps, drops, and other backpack strains.

Weight

Carrying heavy gear over long distances quickly takes a toll. Every ounce makes a difference for backpackers seeking to travel light. Prioritize lightweight filters, especially if you plan to filter a lot of water. The lightest water filters weigh only a few ounces. Heavier models typically have a more robust design for higher capacity and faster flow. Decide if you prefer ultralight portability or quicker access to more filtered water.

Additional Factors to Consider

Look for a filter that does not require electricity or batteries to operate in the wilderness. Filters that do not use chemicals like iodine are safer if you have iodine sensitivity. A filter with high-quality construction and multiple filtration stages may cost more upfront but last for years to come on the trails. Carefully compare prices to performance when shopping on a budget. An affordable filter that clogs quickly or filters too slowly may become more frustrating than useful. Reading reviews from verified customers who use their filters on backpacking trips can provide helpful insight into real-world performance.

Conclusion

Having clean water is critical when backpacking through the backcountry. The right water filter removes dangerous contaminants from natural water sources to prevent debilitating waterborne illnesses on your adventures. Focus on effectiveness, ease of use, reliability, weight, and key features most important for your needs when determining the best backpacking water filter. With mindful research and comparison, you can find an ideal water filtration system to keep you healthy and hydrated on your next backpacking trip. Investing in a quality filter is essential gear that allows backpackers to travel further and drink from the landscapes they traverse.

Frequently Asked Question

What is the most effective type of backpacking water filter?

The most effective type of backpacking water filter is usually a portable water filter pump or a gravity filter. These filters typically utilize a combination of mechanical and/or physical filtration methods, effectively removing bacteria, protozoa, and particulates from the water and providing clean and safe drinking water in outdoor environments.

How often should I replace the filter cartridge in my backpacking water filter?

The frequency of replacing the filter cartridge depends on the model and the volume of water being filtered. Manufacturers generally provide guidelines on when to replace cartridges, often measured in gallons or liters. Regular maintenance and adherence to these guidelines are crucial to ensuring optimal performance and preventing contamination.

Can backpacking water filters remove viruses from the water?

While many backpacking water filters are effective against bacteria and protozoa, they may not be able to filter out viruses. If you’re traveling to areas where waterborne viruses are a concern, consider using a water purifier with additional features like chemical treatment or a UV light component specifically designed to handle viral contamination.

Are there any special considerations for using backpacking water filters in cold temperatures?

Yes, some water filters may be susceptible to freezing in cold temperatures, potentially damaging their filtration elements. It’s important to follow the manufacturer’s guidelines regarding temperature limitations. To prevent freezing, store the filter in a warm place overnight, keep it close to your body, or use insulating sleeves designed for cold weather use.

Can I use a backpacking water filter to filter water from any source?

While backpacking water filters are designed to handle a variety of water sources, it’s essential to consider the water quality and potential contaminants. Filters are generally effective against bacteria and protozoa but may not remove certain chemicals, heavy metals, or viruses. Check the specifications of your filter and, if needed, consider additional water treatment methods for specific contaminants encountered in your destination.