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

January 2021


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

  • World Alliance Member
  • Featured Solution
  • Labelled Solution
Label Date January 11, 2021
From Tanzania
Maturity stage TRL 9 / CRI 5-6 - Market competition driving widespread deployment &/"Bankable" grade asset class

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.

The Environmental Benefits

  • 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

The Financial Benefits

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

Target client profile



Activity Region

  • Headquarters
  • Activity

Company Profile

TAHUDE Foundation

TANZANIA HUMAN DEVELOPMENT FOUNDATION (TAHUDE Foundation) under the Reg. No. ooNGO/00005851 is a non-profit making organization founded by Tanzanian individuals whose ambition is to utilize different talents of men and women who wish to effect positive changes in the lives of people. We serve as a BRIDGE between our partners and the needy community. For detailed information please kindly visit various pages of our website:

Headquarters JM7M+65 Arusha, Tanzania
Type Non-profit project
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Networking Partner


Waterpreneurs is a global “for-impact organisation”, supporting the scaling-up of impact investments financing the growth of WASH enterprises operating in developing countries, and respecting human rights. Waterpreneurs brings extensive knowledge of the water and sanitation entrepreneurial sector, impact investing and facilitation of marketplaces.

Solutions Associated 29
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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. The innovator TAHUDE Foundation has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.