Best Survival Water Filters on the Market

Water is one of the most essential things on the planet. You can survive without food for about 45 days, but you can die after three days without water. Having a source of clean and safe water is vital.

Sometimes running to the store or turning on the faucet won’t be an option. At those times, having the best survival water filter becomes indispensable. Being able to filter water so that you have something to drink can save your life.

Whether you’re using your filter as an emergency option on a hike or to keep you hydrated after a natural disaster, you want to ensure that you have a survival water filter. It has to get the job done and provide safe drinking water for you and your family.

8 Best Survival Water Filters

You want a filter that is reliable, durable, and useful. It has to filter enough water to keep you going and make that water safe enough to drink every time. Here are some of the best survival water filters on the market.


1) LifeStraw Personal Water Filter

LifeStraw is a personal water filter that you can easily pack for an extended camping trip or adventure. It is highly portable and designed to be carried or attached to your gear.

LifeStraw Personal Water Filter

Each LifeStraw can filter 4,000 liters of water. That’s enough clean water for about 1,000 days for one person. It filters for bacteria and particulates to 0.2 microns. The filter surpasses EPA standards and can remove 99.9 percent of waterborne bacteria and protozoan parasites.

The filter uses no extra chemicals. It doesn’t require power and has no moving parts that can stop working. It offers a great flow rate so that you get your water fast when you need it.

With every Lifestraw purchased, the company donates one year’s worth of water to a student in an underdeveloped country. Though this has nothing to do with the product itself, it does speak well of the company.

Pros
  • Very portable
  • Each one can filter a large amount of water
  • Doesn’t use chemicals
  • Purchasing these products helps a water charity
  • Filters out 99.9 percent of waterborne bacteria and protozoa
Cons
  • It can be hard to suck the water through the filter
  • Doesn’t filter out chemicals or viruses

2) Sawyer Products Mini Water Filtration System

The Sawyer Products Mini Water Filtration System is super portable. The filter system fits in the palm of your hand and weighs only two ounces. It can attach to standard disposable water bottles and hydration packs. The system also includes a straw and a squeeze pouch for easy use.

Sawyer Products Mini Water Filtration System

The system can filter up to 100,000 gallons of water. It filters that water to 0.1 Micron, which is enough to catch 99.999 percent of all bacteria and protozoa. That’s ten times the standards of the EPA.

The filter uses an absolute hollow fiber membrane to achieve this level of cleaning. You can also clean the filter between uses to prolong its life.

This filter uses no chemicals and has no moving parts. It also doesn’t need a power source. It doesn’t require adapters to work, and the included straw can be used to drink directly from water sources when needed.

Pros
  • Very portable at only two ounces
  • Can easily be used with any source of water
  • Filters a large amount of water
  • Comes with a plunger for ease of cleaning
  • The squeezable pouch gives you an easy to use container
Cons
  • The squeezable pouch is prone to leaking and breaking
  • Slow flow can make it hard to use if you need water quickly

3) DeFe Personal Water Filter

The DeFe Personal Water Filter is designed to be extremely portable. It is under eight inches long and weighs only 2.3 ounces. The Defe water filter has a clip and a lanyard for easy storage and also is designed to go smoothly on any adventure you want to take.

DeFe Personal Water Filter

The hollow fiber membrane inline filter works down to 0.1 Micron. The filter removes 99.9 percent of waterborne bacteria and protozoa. This rate surpasses the EPA standard. It can filter up to 2,000 liters of water.

You can attach this filter to most standard disposable water bottles, or you can use the straw with any water source you have available. It’s easy to use without having to keep track of adaptors.

Pros
  • Easy to use on any water source
  • Comes with a detachable lanyard making it easy to carry
  • Doesn’t use chemicals
  • Doesn’t need a power source
  • Fits on standard disposable water bottles
Cons
  • Though it filters a lot of water, it is one of the lower totals on this list
  • It can become clogged when using it in filthy water

4) Survivor Filter Pro

There are two ways you can use The Survival Filter Pro. You can use just the filter for drinking directly from a source of water. You can also pump from a source of water into any drink container. It comes with an attachable cup if you want to pump into that container.

Survivor Filter Pro

It can filter enough water for the whole family. The filter can produce 100,000 liters of water on a single filter. It makes this water at a fast rate, cleaning up to 17 ounces a minute.

The triple absolute filtration system works to .01 microns. It can filter out not only bacteria and protozoa but also viruses and harmful chemicals. Moreover, this makes it more versatile than most water filters.

Pros
  • Can purify enough water for the whole family
  • Filters out chemicals and viruses
  • Can be used for 100,000 litres of water
  • Superfast flow rate
  • Easy to clean
Cons
  • Problems with the pump’s durability, especially the handle
  • More prominent than other options on the list, with more necessary parts

5) Miniwell Gravity Water Filter Straw

The versatile Miniwell Gravity Water Filter Straw comes with extras that allow you to use it as a drinking straw or as a gravity filter. Moreover, using it as a gravity filter enables multiple people to share one device.

Miniwell Gravity Water Filter Straw

The filter can get rid of 99.9 percent of bacteria and protozoa. It does this with a .1-micron filter process. It can clean up to 2,000 litres of water safely.

You can easily backwash the system, extending the filter’s life and keeping the flow rate up. Just run water through it in reverse, and you can clean out the filter.

Pros
  • You can use it as a straw, or a gravity filter
  • Easy to clean to prolong use
  • Attaches to most disposable bottles
  • Gravity filter allows groups to use it
  • Fast flow rate
Cons
  • Doesn’t filter as much water as some other products
  • The plastic bag can get torn

6) Membrane Solutions Straw Water Filter

The Membrane Solution Straw Water Filter was built longer than other straw filters. This extra size makes it a little harder to store, but it doesn’t need an additional straw attachment, making it less complicated. It’s about 10 inches long.

Membrane Solutions Straw Water Filter

A three-stage filtration system works to .1 micron, which eliminates 99.9 percent of bacteria and protozoa. One unit can filter 1,000 litres of water.

It doesn’t use chemicals to clean. It also doesn’t have any moving parts and doesn’t require power to work. The filter is easy to clean to help prolong its use.

Pros
  • A little longer than other filters, so it doesn’t need the straw attachment
  • Triple stage filtration system works on harmful bacteria and protozoa
  • Doesn’t use chemicals
  • Doesn’t require a power source
  • Easy to clean
Cons
  • Bigger than some of the other straw filters
  • Only filters 1,000 litres of water

7) MoKo Portable Water Filter

The Moko Portable Water Filter comes with a durable aluminium housing case, making it one of the toughest pumps available. You can choose to use this filter as a straw, or you can pump water from a source through the filter and into any container you choose.

MoKo Portable Water Filter

The filter works to .01 microns meaning that it will not only filter bacteria and protozoa. It also works on viruses and chemicals. You will get exceptionally safe water. The filter works on 3,000 litres before it needs replacing.

Pros
  • Replaceable filters help extend the life of the filter
  • Filters out bacteria, protozoa, chemicals, and viruses
  • Durable aluminium case makes it very tough
  • It’s versatile and can be used as a straw system or a pump
  • Superfast flow rate
Cons
  • Bigger and heavier than some options
  • The pump can malfunction

8) Katadyn Gravity BeFree 3.0L Microfilter

The Katadyn Gravity BeFree Microfilter lets gravity do the work when filtering your water. Just fill-up the collapsible bag with water and hang it from any source to get clean water.

Katadyn Gravity BeFree 3.0L Microfilter

The filter works up to .1 micron. It will clean the water of most bacteria and protozoa. Its hollow fibre filter can create a flow rate of two litres per minute, making it one of the fastest filters out there.

The bag is large and able to hold three litres of water. You can share it with a group of people without worrying about contamination. It is straightforward to clean, and you can backwash the filter to help make it work at top efficiency for a more extended time.

Pros
  • The collapse flask is three litres so that you can filter a lot of water at one time
  • Easy to clean
  • Can use gravity to increase the flow rate
  • Easy to break down and store
  • Can be used by groups
Cons
  • Sometimes water can taste like plastic
  • The bag can rip easily, especially if not stored properly

What to Look for in a Survival Water Filter

Buying a water filtration system can be confusing. There are a lot of factors to consider, and every product tosses different numbers, data, and statistics at you to make their product seem like the best.

Here are some critical questions to ask yourself before picking a survival water filter. The data you receive will work in your favour.

How Many People Will Need Water?

Are you purchasing this for yourself, or do you have a family that will also need fresh, clean water? Knowing how many people this emergency water filter needs to help will give you an idea of what you should get. You can share one multi-person filtration system, or you could get multiple personal systems.

How Do You Plan to Use the System?

Are you going to want to bring the system on trips, or will you only use it if there’s an emergency at home? If you go on many long hikes and camping trips, you will want something more portable. If you only plan on using the system if there is a disaster, a larger unit would not be a problem.

What Do You Want it to filter?

Sometimes filtering out microbes and bacteria will be enough. However, you also may want to upgrade to systems that can filter viruses, chemicals, and metals. Knowing what your filter is capable of will help you understand how to use it safely.

How Much Water Can it Filter?

Each person needs about half a gallon (2 litres) of water to survive each day. That is a bare minimum. It may be helpful to have clean water to wash with daily. You will want a filter that can last you a while in case of an emergency or an accident.

Almost all filter systems work on enough water to last you months, but the better systems give you even longer. That extra time can be crucial in emergencies. Look for systems that can filter large amounts of water. Also, finding systems that can be cleaned and reused is useful.

Final Thoughts

Finding the best survival water filter can mean the difference between life and death. The options listed above offer some of the best filters on the market, which can help you in a vast range of situations. You must find the filter that fulfils the most criteria in how you plan to use it.

The more versatile the filter is, the better. Never get caught without the option to make usable water. All of these filters will make emergencies more survivable. These filters not only allow you to quench your thirst, but they also offer peace of mind.


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