Emergency Water Filter Straw
Emergency Water Filter Straw
Emergency Water Filter Straw
Emergency Water Filter Straw

Excellent Trustpilot 1,059+ Reviews

Emergency Water Filter Straw

removes 99.9% of bacteria down to 0.01 microns

third-party lab tested for bacteria & protozoa protection

filters up to 1,800 gallons of water

advanced hollow fiber membrane built for long-term use

bpa-free, fda-grade materials

no added chemicals, no plastic taste

individually inspected for best performance

every straw is tested before leaving our facility

FDA Approved Materials

30-Day Money Back Guarantee

3rd Party Tested & Approved

Product Overview

The PureFlow Water Filter Straw provides on-demand access to clean drinking water in outdoor and emergency situations.


It uses a 0.01-micron hollow fiber membrane to physically remove 99.9% of bacteria and protozoa, including E. coli, Giardia, and Cryptosporidium.


The filter operates without chemicals, batteries, or moving parts, ensuring reliable performance in the field.


Its compact and lightweight (>2oz) design allows for convenient storage in backpacks, vehicles, and emergency supply kits.

How It Works

the pureflow water filter straw uses mechanical microfiltration to remove contaminants without chemicals or power.

 

stage 1 – pre-filter mesh:
captures sand, silt, and larger particles, protecting the internal membrane and extending filter life.

 

stage 2 – hollow fiber membrane (0.01 micron):
water passes through microscopic fibers that block bacteria, protozoa, and microplastics, allowing only clean water molecules to flow through.

 

stage 3 – mouthpiece outlet:
filtered water exits through the top for safe, direct drinking.

 

first use:
draw water through several times to prime the membrane and ensure smooth flow.

Shipping & Warranty

climate-neutral shipping—delivered within 10 business days. 

(please note this does not include our 2-3 days processing period)


secure packaging—reinforced to prevent transit damage.


30-day warranty—try it risk-free. if you’re not satisfied, return it for a full refund.

 

while our components are assembled in china, every unit is inspected and tested before leaving our north american warehouse.

Honest Filtration & Safety

made from bpa-free, fda-approved materials—safe for emergency use.


the filter does not remove chemicals or viruses.

Thousands of americans are already prepared

Real life stories from our customers

Hear real life stories from our customers about how our straw helped their lives!

Inside the pureflow straw

Our Water Filter Straw uses a four-stage filtration system designed for high efficiency and durability. Each layer performs a distinct function to ensure safe drinking water in any environment without chemicals or batteries.

four-layer mechanical filtration system

 

0.01-micron uf membrane for bacteria and protozoa removal

 

no chemicals, power, or batteries required

 

optimized for flow stability and durability

 

tested for consistent performance across water sources

Certified Safety & Quality Standards

Each PureFlow filter undergoes a strict multi-step quality control process to ensure reliable operation and user safety. Materials, assembly, and testing follow U.S. safety standards and international inspection protocols.

Material Safety

Manufactured using BPA-free, FDA-approved components suitable for contact with drinking water. All materials are compliant with U.S. Food and Drug Administration and European Union safety standards.

Independent Testing

Filters are third-party tested to verify bacterial and protozoan removal claims according to accepted water filtration benchmarks.

Batch Inspection

Every production batch is individually inspected for consistency, membrane integrity, and leak resistance before being packaged and shipped.

Assembly Standards

While components are assembled in China, all units undergo final quality verification and testing in North America to ensure uniform performance.

US

THEM

PureFlow redefines portable water filtration with ultrafiltration precision, verified lab testing, and certified materials built for real-world reliability.

How it compares

Verified 99.9% Bacteria & Protozoa Removal

Filter capacity: 1,800 Gallons

⚠️ 1,000 gallons

FDA-Approved

BPA-Free Materials

⚠️ undisclosed / not tested

Independent Lab Tested

Batch-Inspected for Quality

⚠️ limited / not verified

30-Day Warranty & Support

loved by thousands

Still not sure about us? See what others have to say 

FAQs

What Does The PureFlow Straw Filter Out?

The straw removes 99.9% of bacteria, protozoa, and microplastics through a 0.02-micron hollow fiber membrane. It does not filter chemicals, heavy metals, or viruses.

How Long Does One Straw Last?

Each straw filters up to 1,800 gallons of water — enough to support one person’s drinking needs for nearly 10 years under average use. Simply replace the straw once water stops flowing.

Can It Remove Chlorine or Heavy Metals?

No — the PureFlow straw is a mechanical microfilter, not a chemical filter. It’s designed for biological contaminants, not dissolved chemicals.

Does It Change The Taste Of Water?

No chemicals are added, so the taste remains natural. It simply removes harmful contaminants without affecting flavor.

Does It Have An Expiration Date?

No. The straw has no expiration as long as it’s stored in a cool, dry place. Just make sure it’s completely dry before long-term storage to avoid mold or microbial growth.

What Water Sources Can I Use It With?

It’s suitable for rivers, lakes, streams, and rainwater, but should not be used with saltwater or industrial runoff.

Can Children Use It Safely?

Yes. The straw uses FDA-approved, BPA-free materials, and the suction-based design requires minimal effort, making it safe for supervised use.

Where Is The PureFlow Straw Made?

The product is assembled under strict quality control standards in certified facilities. Every batch is individually tested and inspected before shipping.

Still Not Convinced

See our customers use our straw in action!