Oassay FlexFlow

World’s First Modular Purifier
for Virus-Free Purity

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▌ From murky to pure — Just a simple squeeze! ▌
From Murky to Pure - Desktop From Murky to Pure - Mobile

Dual-Stage,
99.999% Purification,
Superior Taste.

Next-generation water purifier, lab-tested for exceptional quality. Powered by NanoFlex Carbon + 0.1 μm micro-membrane for consistently pure and great-tasting water.

Dual Purifier, Ultra Clean,
Superior Taste

Next-generation water purifier, lab-tested for exceptional quality. Powered by NanoFlex Carbon + 0.1 μm micro-membrane for consistently pure and great-tasting water.

3-in-1 Ultimate Purifier Meets All Your Needs

OASSAY FlexFlow combines 3 modes in 1 bottle. Say goodbye to bulky gear and hello to pure, effortless hydration on the go.

OASSAY 3 Modes OASSAY 3 Modes Mobile
Travel Icon

TRAVEL MODE

External Connections

Fits most 28mm bottles—connects to hoses, bottles, and taps for safe hydration anywhere.

Sports Icon

SPORTS MODE

Everyday Purified Hydration

Streamlined for active hydration—grab, sip, and go with ease, wherever your workout takes you.

Camping Icon

CAMPING MODE

Mix or Boil, On the Go

Trail-ready for coffee, hot meals, or electrolyte boosts. Just add heat and adventure.

Zero Effort, Instant Flow, Just Drink

15-20 ml/s smooth like drinking from a glass. Just tilt and drink. Clean, instant flow with FlexFlow. Your outdoor hydration, made easy and effortless.

zero effort

Reusable Cartridge,
Backwash Clean,
Extended Life.

Flip and flush the NanoFlex Carbon to restore flow, maintain clean water performance, and extend cartridge life — all with just a quick backflush.

Reusable Cartridge,
Backwash Clean,
Extended Life.

Flip and flush the NanoFlex Carbon to restore flow, maintain clean water performance, and extend cartridge life — all with just a quick backflush.

▌Flush Out
90% Clog in Seconds

Clogging or slow flow? Backwash instantly clears NanoFlex Carbon for fast, clean performance.

▌100 Backwashes
Longer Lifespan

Want Lasting Use? Refresh to extend cartridge life up to 5X longer than regular filters, ensuring clean water trip after trip.

Micro Membrane

Every Sip, Clearly Safer

Backed by OASSAY’s patent-pending NanoFlex Carbon technology, lab-tested and awarded the Geneva Invention Silver, FlexFlow ensures safe, reliable purification with every sip.

▌Tested, Awarded, Trusted by Data. ▌
Geneva Medal
Geneva Invention Silver Medal Diploma
Test Report
Antibacterial Performance Test Report
Colony Count
Culture State Colony Count

OASSAY vs The Rest

Comparison Image

From Nature, Into Nature

Rooted in nature, designed for sustainability. The woodpecker-inspired cap design merges simplicity and efficiency, bringing you a hydration experience that’s as natural and sustainable as the world around us.

zero effort

Instantly Purify Water to Drinkable Level
from Any Water Resource

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