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We’re working with great organizations around the world!


What’s the DayOne Waterbag™?

The DayOne Waterbag™ is 10-liter personal water purification unit with integrated filter and backpack straps. The Waterbag provides all four of the functions needed to treat and safely store drinking water: (1) collection, (2) transportation, (3) treatment (specifically the P&G™ Purifier of Water packets), and (4) hygienic storage. It is compactly designed for immediate distribution after a disaster to treat contaminated freshwater sources, protecting survivors from the leading causes of diarrheal disease.

  • All-in-one patented solution
  • Closed multi-treatment system
  • Uses P&G™ Purifier of Water
  • Meets emergency drinking water guidelines
  • U.S. Marines Ranked #1 in water performance and user operation
  • Clear and simple user instructions
  • Easy to transport
  • Tested Worldwide

The Waterbag weights 22 lbs (10 kg) when full.


The Waterbag provides a family of 4 with clean drinking water for up to 2 months.


The Waterbag holds 2.5 gallons (10 L).


The Waterbag treats water using P&G focculant / disinfectant packets and a filter.


The Waterbag purifies 2.5 gallons (10 L) in 30 minutes.


The Waterbag removes cysts, viruses, bacteria and arsenic from contaminated water sources.


The Waterbag measures 14 inches (width) by 31 inches (tall).


The Waterbag is compact for efficient shipping and transport.


Fact: 3.4 million people die each year from water related disease. This is almost the entire city of Los Angeles. We’re empowering communities around the world to create clean drinking water using the DayOne Waterbag.

More about DayOne Response™

DayOne Response™ develops and supplies innovative solutions for disaster relief specifically for clean drinking water and is a distributor of P&G™ Purifier of Water packets. DayOne Response™ also distributes water and sanitation products globally to relief organizations, government agencies, and public and private entities. DayOne Response™ supports the Procter & Gamble Children’s Safe Drinking Water Program’s goal to deliver more than 2 billion liters of clean drinking water each year by 2020.

People around the world are using the DayOne Waterbag to create clean drinking water!

We’re getting great feedback!

I think the DayOne system is a game changer and could have significant impact outside of disaster response. I have seen firsthand the daily effort people in Africa spend on gathering water and think your design could serve as a labor saving device for the water collectors as well as its public health impact.- Keith Neroutsos, Director of Procurement, PATH
DayOne Purification Waterbags™ are a great product – the size and flexibility allowed it to be transported to the Philippines quickly and efficiently. When the next natural disaster hits, Giving Children Hope knows that DayOne Response will deliver life saving water with a product that is versatile, giving us many options to get water to people that need it most.- Sean Lawrence, Executive Director at Giving Children Hope

Recent Press

Ground zero feedback helps DayOne Response respond to disaster

Tricia Compas-Markman was in Haiti after a devastating earthquake killed more than 160,000 people when she finally realised her idea to change the world was.. Read More →

DayOne Response wins Intel Environment Award at the Tech Awards

The Tech Awards — presented by Applied Materials — is honoring 10 international laureates using technology to benefit humanity. These laureates join 277 others who have been honored since.. Read More →

Our goal is to deliver clean water starting day one, responding to disasters around the globe.