Imagine waking up to find the power out, the taps dry, and the grocery store shelves already emptied. Suddenly, something as simple as giving your family a glass of water becomes a serious concern. With natural disasters, unexpected outages, and water emergencies becoming a reality for communities across the country, being prepared has never felt more important. That's why we created PureFlow, a compact emergency water filtration system that helps turn freshwater from rivers, lakes, and streams into safer drinking water. No electricity, no bulky equipment, and no complicated setup. Just a reliable way to filter water when your usual supply isn't available.
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BuildHow To Use
Step 1: Uncap the Filter
Remove the protective caps from both ends of your PureFlow straw.
Step 2: Place in Water
Insert the bottom end into your water source.
Step 3: Sip & Hydrate
Drink directly through the mouthpiece as the water passes through the filter.
For first use, take 3 to 5 draws to prime the filter, as specified on the product page. PureFlow does not remove viruses, chemicals, or heavy metals.
PureFlow
video_libraryPureFlow In Action
helpHow does PureFlow make dirty water drinkable?
PureFlow uses advanced 0.01-micron filtration to remove 99.99% of bacteria and protozoa, helping turn water from freshwater sources like lakes, rivers, and streams into safer drinking water. Its filtration system works without electricity, batteries, or added chemicals. It does not remove viruses, heavy metals, or chemical contamination.
Stay Hydrated Anytime, Anywhere.
Stop Missing What Matters Most
You Can't Predict the Next Emergency. But You Can Prepare.
Between devastating floods, unpredictable storms, widespread power outages, and growing uncertainty around the world, it's becoming harder to take everyday necessities for granted. We've seen how quickly roads can become impassable, store shelves can empty, and families can suddenly find themselves without dependable drinking water. And when that happens, the last thing you want is to be wondering how you'll keep your children, parents, or loved ones hydrated. That's why having PureFlow tucked away in your home, car, or emergency bag is such a simple but meaningful step. With 15,000+ units sold, more people are choosing to prepare before they need to. You may never face a serious water emergency, and hopefully you won't. But knowing you have a backup filtration system ready when life takes an unexpected turn? That's peace of mind worth having.
Advanced Filtration. Simple Enough for Anyone.
PureFlow uses an advanced 4-stage filtration system with a 0.01-micron hollow fiber membrane designed to trap 99.99% of bacteria and protozoa, along with dirt, sediment, and other unwanted particles. Unlike bulky filtration systems that require electricity or complicated setups, PureFlow weighs just 2 ounces and fits comfortably in your pocket, glovebox, or emergency bag. Simply drink through the straw or use the included Emergency Filtration Kit to fill a container using gravity. Each straw can filter up to 1,800 gallons, making it a practical backup for extended emergencies. No batteries to charge, no chemicals to add, and no waiting for a filtration cycle. Just convenient, portable filtration whenever you need it.
Frequently Asked Questions
One PureFlow can filter up to 1,800 gallons of water, giving you a substantial emergency water supply from a single compact device. Actual capacity depends on water conditions, and once first used, the filter should be replaced within 6 months.
Absolutely! PureFlow operates entirely without electricity, charging, or batteries. Whether you're dealing with a blackout, camping off the grid, or preparing for an unexpected emergency, you can filter suitable freshwater without depending on a power source.
PureFlow is designed for freshwater sources such as rivers, lakes, streams, ponds, and collected rainwater. It helps remove harmful microorganisms and particles, giving you more options when bottled or treated water isn't available. Avoid saltwater, industrial runoff, floodwater, and water suspected of chemical contamination.
PureFlow has no fixed expiration date when stored unused, completely dry, and protected from freezing temperatures. That means you can keep it in your emergency supplies without worrying about batteries dying or chemicals expiring.
Yes! Every PureFlow comes with an Emergency Filtration Kit that includes a water pouch and hose. Simply fill the pouch with suitable freshwater, connect the filtration system, and let gravity help filter water into your bottle or container.
No. PureFlow is designed to remove bacteria, protozoa, and certain particles, not viruses, dissolved chemicals, or heavy metals. Additional treatment may be necessary depending on the water source. Always follow local drinking-water advisories.
PureFlow has a built-in filtration membrane, so there's no separate cartridge to change. Once the filter reaches the end of its usable life, becomes damaged, or has been used for 6 months, replace the entire straw.
Yes. PureFlow's simple design makes it convenient for different age groups, and the included gravity filtration kit allows water to be collected without drinking directly through the straw. Children should always use it under adult supervision.
PureFlow helps remove dirt, sediment, and particles that can affect water clarity. However, because it doesn't contain an activated carbon stage, it may not remove unpleasant tastes or odors caused by dissolved substances.
A slower flow may mean sediment has accumulated inside the filter. Use the included backflush syringe with clean water to help clear trapped particles. If the flow remains severely restricted or stops, replace the filter rather than forcing water through it.
Avoid allowing PureFlow to freeze, particularly after it has been used. Freezing can damage the internal membrane and compromise filtration performance. Store it somewhere protected from freezing temperatures.
We offer a 30-day money-back guarantee. If you don’t see the expected results, contact us for a full refund.
Real People. Real Safety.
Read what people just like you are saying about PureFlow
One for Every Emergency Kit
"Tried it with some murky creek water while camping. The water came through much clearer than I expected. Pretty impressed!"
New York, NY
Peace of Mind for My Kids
"Bought 3 of these. One for the house, one for my truck and another for my emergency bag. Just makes sense to have them."
Los Angeles, CA
Better Than Relying on Bottled Water
"We lost power for almost 4 days last year. Never want to be caught without a backup water plan again. This little thing takes up almost no space."
Chicago, IL