Gallery Nanofilter 1
Gallery Nanofilter 1
January 2021
Headquarters Unnamed Road, Arusha, Tanzania

Nanofilter - A low-cost water filter for providing clean and safe water without using electricity or any chemicals

Nanofilter selectively removes diverse water contaminants (bacteria, chemical contaminants, organic matter) and produces 10 liters/hour water per system. It is locally manufactured and customized to local needs. Customers are primarily served from micro-finance kiosks operated by local entrepreneurs who sell water, in reusable plastic containers at affordable prices.

With the Nanofilter® technology, it is now possible to modify the properties of nanomaterials that are used in Nanofilter® to trap and remove a wide range of “targeted” water contaminants which vary from one geographical area to another. Water pollutants vary geographically because of different human activities and geological formation of soil and rocks. To design a Nanofilter® for removal of contaminants, water is first tested in the laboratory in order to identify the contaminants contained therein. Thus, the properties of nanomaterials are changed according to the findings of the laboratory test. As required by WHO Standards, the Nanofilter® “selectively” removes 99.999% of contaminants from water, including bacteria, viruses, and chemical contaminants (of any category). One filter purifies 10 liters/hour, lasts five years, and has relatively lower operation cost (~GBP 1 per month) compared to other existing technologies of similar quality, making it affordable to a majority of Tanzanians, Kenyans and soon Zambians, who live in underserved areas.

  • /

Key features

  • The small-size Nanofilter provides 10 L of water per one hour; big filters provide up to 40 L of water per hour
  • It has a life span of 5 years before it needs big service
  • It can be customized to various local water challenges
  • More than 5 million plastic water bottles not used
  • 0% of trees cut for boiling drinking water


  • Less than 2 years pack back time
  • Five times cheaper than the commercial bottled water

Categories of Application

Activity Region

  • /



  • Headquarters
  • Activity

Related Topics

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.