How long does the filter last?

Purewell rates it for up to 523 gallons (1,000 liters). After that the hollow-fiber cartridge should be replaced.

Can I use it on muddy or cloudy water?

It is made for natural fresh water, but very silty water clogs the fibers faster. Let sediment settle first and backflush often.

Both ends come off so you can rinse the housing and backflush the cartridge. Let it dry fully before storing.

Does it remove viruses?

Hollow-fiber straw filters like this one target bacteria and protozoa such as Giardia and Cryptosporidium. They are not rated for viruses, so treat water chemically in virus-risk areas.

Can I attach it to a bottle or squeeze bag?

It is a drink-through straw. If you want to filter into a bottle or use a squeeze bag, a threaded filter is a better fit.

Is it good for a survival kit?

Yes. It needs no power or pumping and stores small, which makes it a sensible backup in a pack or emergency kit.

What do buyers say about the Purewell Personal Portable Water Filtration Straw?

Rated 4.9 out of 5 from 29 ratings.

Purewell Personal Portable Water Filtration Straw

Best price now

$12.99at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

Purewell Personal Portable Water Filtration Straw

Best price now

$12.99at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $12.99 at Walmart on Nov 10.

Our take on the Purewell Personal Portable Water Filtration Straw

The Purewell is a straw-style personal water filter for drinking straight from lakes, streams and taps on the trail. It is rated for up to 523 gallons (1,000 liters) before replacement, and both ends come off so you can rinse and dry the housing. That capacity and the cleanable ends put it alongside other hollow-fiber straw filters such as LifeStraw and Sawyer Squeeze, which are lighter or squeeze-compatible but not always as easy to open up. It suits hikers, campers and emergency-kit builders who want a simple sip-through filter rather than a pump or gravity system. Buyers rate it highly, though the sample of ratings is small.

Best forHikers and backpackers filtering stream water on the moveCampers and day-trippers who want a backup filterEmergency and survival kitsTravelers wary of tap water

Pros

Long 523-gallon (1,000-liter) filter life
Removable ends make cleaning easier
No pumping or batteries: drink straight through
Compact straw design packs into a pocket or pack lid

Cons

Straw-only design means sipping, not filling bottles fast
No squeeze-bag or bottle-thread compatibility mentioned
Filter life is hard to track without a counter
Small rating sample behind the high score

Purewell Personal Portable Water Filtration Straw prices at every store

WalmartNew
In stockSold by Purewell Filtration TechReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$12.99Checked Nov 10
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What reviewers say

4.9 / 529 ratings

Buyers rate the Purewell straw highly, with 4.9 out of 5 across 29 ratings. The recurring positives are the long filter life and the easy-to-clean removable ends; the small number of ratings limits how much weight to put on the score.

What people mention

Filter lifePraisedOwners like the long 523-gallon rating before the filter needs replacing.
CleaningPraisedRemovable ends make rinsing and drying the housing easier.
Flow rateMixedSipping through the straw is slower than squeezing water through a filter into a bottle.
Filter trackingCriticisedThere is no counter or indicator, so owners have to estimate when to swap the filter.

About the Purewell Personal Portable Water Filtration Straw

The Purewell Personal Portable Water Filtration Straw is a straw-style water filter for camping and other outdoor use. It is designed to give you clean drinking water while you are away from home.

The filter has a lifespan of up to 523 gallons (1,000 liters). Its ends are removable, which makes it easy to clean.

Type: Straw-style water filter
Filter lifespan: Up to 523 gallons (1,000 liters)
Cleaning: Removable ends for easy cleaning
Color: Yellow
Quantity: 1 filter

Specifications

color: YellowSource
actual_color: yellowSource
multipack_quantity: 1Source

Questions and answers

How long does the filter last?: Purewell rates it for up to 523 gallons (1,000 liters). After that the hollow-fiber cartridge should be replaced.
Can I use it on muddy or cloudy water?: It is made for natural fresh water, but very silty water clogs the fibers faster. Let sediment settle first and backflush often.
How do I clean it?: Both ends come off so you can rinse the housing and backflush the cartridge. Let it dry fully before storing.
Does it remove viruses?: Hollow-fiber straw filters like this one target bacteria and protozoa such as Giardia and Cryptosporidium. They are not rated for viruses, so treat water chemically in virus-risk areas.
Can I attach it to a bottle or squeeze bag?: It is a drink-through straw. If you want to filter into a bottle or use a squeeze bag, a threaded filter is a better fit.
Is it good for a survival kit?: Yes. It needs no power or pumping and stores small, which makes it a sensible backup in a pack or emergency kit.
Where is the Purewell Personal Portable Water Filtration Straw cheapest?: At Walmart, for $12.99, as of our latest check.
What do buyers say about the Purewell Personal Portable Water Filtration Straw?: Rated 4.9 out of 5 from 29 ratings.