PURIVOLT
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WATER, IN A NEW LIGHT

A brightereveryday.

A sculpted bottle. A rechargeable UV-C cap.
Developing a new water-treatment routine,
with everyday life in Nigeria in mind.

Be part of what’s next

IN DEVELOPMENT · PERFORMANCE TESTING AHEAD

PURIVOLT Helix, Dune and Prism bottle concepts
01 / HELIXIVORY · SCULPTED FLOW
DRAG TO EXPLORE
A NEW EVERYDAY, TAKING SHAPE
FIND YOUR FORM

Helix in ivory selected.

01 / THE EVERYDAY OBJECT, RECONSIDERED

Good design should feel
as natural as a sip of water.

A bottle you want to carry. A cap designed to do more.
UV-C technology, brought into an everyday object.

Discover the technology

THE CONCEPT COLLECTION

Three forms.
One bright idea.

Inspired by movement. Shaped for your day.
Explore our first 500 mL design studies.

Concept forms. Final materials, capacity and finishes may evolve.

Explore selected form in 3D
DESIGNED IN-HOUSE

02 / SMALL DETAILS. BIG INTENTION.

One touch.
A quiet glow.

The intelligence lives in the cap.
We’re developing ours from the inside out.

01

A button at the top.

A simple press to begin the intended treatment cycle.

02

A light around the edge.

A soft status indicator. The visible glow is not the UV-C treatment light.

03

Thoughtfully rechargeable.

UV-C LEDs, battery power and control, brought together in one cap.

An 8-second light animation, not a treatment timer or proof of safe water.

03 / THE TECHNOLOGY, EXPLAINED

Light with
a purpose.

Not a filter. Not just a glowing cap.
We’re developing UV-C LED technology
for microbial disinfection in a reusable bottle.

INSIDE THE IDEAUV-C
The cap’s two different lights Conceptual cutaway: an external visible status ring surrounds the cap. A separate UV-C LED under the cap is intended to expose the water inside a closed bottle. The drawn glow does not show actual dose or verified coverage. VISIBLESTATUS RINGUV-C LEDINSIDE THE CAPWATEREXPOSURE
Concept illustration · not a dose map.
UV-C is invisible; the shaded glow only explains the idea.
01

THE SOURCE

UV-C. Inside the cap.

Our cap concept uses ultraviolet-C LEDs directed into the closed bottle. The current engineering direction is approximately 270–280 nm; the final emitter and operating settings are still being evaluated.

02

THE PRINCIPLE

Disinfection, not filtration.

UV-C can damage the genetic material of microorganisms, preventing them from reproducing. It needs sufficient exposure to work; it does not strain particles out of the water.

03

THE EXPERIENCE

A visible signal. A separate job.

The ambient rim is intended to show cycle status. It does not measure water purity or prove treatment success. UV shielding and a cap safety interlock are part of the design work still to be verified.

Understand the treatment limits

THE REACH. THE RESULTS. THE LIMITS.

How far does
the treatment go?

The goal is to treat water throughout a compatible, filled bottle—not just at the surface. But UV-C has no single guaranteed “reach”: water clarity, bottle geometry, light output and exposure time all matter.

PURIVOLT’s coverage, cycle duration and microbial reduction are not yet validated. The 500 mL forms shown here are design targets, not a proven treatment capacity.

WHAT UV-C CAN TARGET

Microorganisms.

With an adequate dose, UV-C can inactivate bacteria, viruses and protozoa. This describes the technology—not a tested result for this product.

MICROBIAL DISINFECTION

WHAT THIS CAP DOES NOT DO

Filter or desalinate.

No physical filter is built into this concept. It does not remove dirt, salt, heavy metals or dissolved chemical pollution. Clear-looking water is not necessarily safe.

NOT AN ALL-WATER PURIFIER

WHAT WE NEED TO PROVE

Performance in practice.

Testing must establish dose and coverage, suitable water conditions, cycle time and microbial reduction for the finished cap-and-bottle system.

RESULTS BEFORE CLAIMS

Good water habits still matter. Cloudiness can shield microbes from UV. UV does not prevent later recontamination, and the bottle still needs regular cleaning. Do not rely on this unvalidated product to make unsafe water drinkable.

The background science

These explain UV treatment in general. They are not PURIVOLT test reports, approvals or endorsements.

04 / A LOCAL STARTING POINT. A WIDER AMBITION.

Nigeria first.
Africa in mind.

For the commute.
The campus.
The everyday carry.

We’re starting with people in Nigeria: students, commuters, professionals and travellers who want a reusable bottle and a simpler water-treatment routine.

Access to safe water remains an important challenge, as UNICEF Nigeria’s WASH work highlights. We think thoughtful, portable technology can be worth exploring alongside the water services people depend on.

Nigeria is our first focus. Learning from people here—and adapting to different needs across Africa—is the longer-term ambition.

01 / PRACTICAL

A routine that travels.

One cap, one button and clear status feedback. The aim is a treatment step that fits a day away from home, without a complicated setup.

02 / RECHARGEABLE

Power you can carry.

A rechargeable battery is intended to run the cap away from a socket between charges. Real battery endurance will be established through testing.

03 / COST-CONSCIOUS

Design for wider access.

Developing the cap in-house and sourcing the bottle are part of our cost-conscious approach. Affordability is a design goal; final pricing is not set.

A personal bottle cannot replace safe public water, appropriate filtration or sanitation. Our ambition is to contribute one useful part.

Help shape what comes next
Read the wider context: UNICEF Nigeria WASH ↗

05 / FROM THE DESIGN DESK

Considered outside.
Engineered within.

Our first PURIVOLT design board: ivory Helix, terracotta Dune and forest green Prism, each shown closed and with its tethered cap open.
THE FIRST FORM STUDIESHELIX / DUNE / PRISM

It starts with
a better question.

What if the bottle you carried every day could do a little more?

Our answer starts with a cap designed in-house, paired with a bottle sourced from a manufacturing partner. These first studies explore how it all comes together.

Currently in development
Next: prototype testing, then performance validation. Launch details will follow what we learn.

BE PART OF OUR NIGERIA-FIRST JOURNEY

Good things
are taking shape.

Follow the prototypes, the testing and what we learn.
Help shape a product for everyday life here.

A few meaningful updates. Always worth opening.

A FEW THINGS YOU MAY BE WONDERING

When will PURIVOLT be available?

We’re developing and testing the product, with Nigeria as our first market focus. A launch date, final price and other country availability have not been set. Join the waitlist for updates.

Can I choose between all three designs?

Helix, Dune and Prism are our first form studies. You can explore each here; final models and finishes will be announced after design and manufacturing validation.

How long will a treatment cycle take?

The treatment duration is not yet established. It must be validated with the final UV-C emitter, water volume and bottle geometry. The 8-second website animation demonstrates the indicator light only—it is not a cleaning-time specification.

Does the light tell me the water is safe?

No. The visible rim is a proposed cycle-status indicator, not a water-quality sensor. It is separate from the UV-C emitter inside the cap. Product safety, shielding and the cap interlock still require verification.

Can I use borehole, tap or river water?

A source’s name or clear appearance does not establish safety. This UV-C concept is not a filter and does not remove dissolved chemical contamination. We have not yet validated supported water conditions; do not use this unvalidated product to make an unsafe source drinkable. Follow local public-health guidance and use an established safe supply.

Why not promise a “99.9%” result?

A defensible reduction claim needs microbiological testing of the finished system under defined conditions. We intend to publish the tested organisms, water conditions, volume, cycle duration and reduction results when those are available—not borrow results from another UV device.