Healthy Cities



A small, chemical-free filter that instantly purifies water

Team Lead

Mauricio Cordova

Solution Pitch

The Problem

Globally, more than 2 billion people lack on-premise access to clean drinking water. Of these 2 billion, more than 700 million people must either travel more than 30 minutes to collect clean water; take water from unprotected wells; or use untreated surface water from lakes, rivers, and streams.

The Solution

Faircap, a small filter that immediately purifies water without the use of chemicals, helps to solve this problem. Faircap screws into plastic bottles and enables a user to take water from any source and drink it. The filters are affordable, can be used hundreds of times, and don’t require an energy source, making them highly practical. 

Faircap uses cutting-edge technologies such as filtration membranes, nanomaterials, and chemical-absorbing fibers to remove pathogens such as bacteria, protozoa, cysts, and even viruses. Its small-form design helps maintain an optimal flow rate as water moves through the filter, providing a comfortable user experience.

Market Opportunity

Over 1.8 million people die every year from drinking contaminated water and 4 billion disease cases are reported, causing a huge negative health and economic impact. Furthermore, the global market for water purifiers was worth more than $34 billion in 2019 and is expected to reach $58 billion by 2025 in the residential and commercial segments.

Partnership Goals

Faircap currently seeks:

  • Advice on market strategy, including audience segmentation and prioritization;
  • Partners to distribute Faircap Mini to outdoor retailer markets through a 1:1 donation model; and
  • Technical consultation with nanomaterials experts to learn more about nanoalumina and its potential to adsorb viruses and bacteria.

Organization Highlights

Some of Faircap’s notable achievements include:

  • Winning the Innovating Together for Healthy Cities Prize at Solve Challenge Finals; and
  • Developing its first commercial product, Faircap Mini.

Existing Partnerships

Faircap currently partners with:

  • Elrha’s Humanitarian Innovation Fund, which supports research, design, production, testing, and implementation of the Faircap filter project; and
  • Oxfam, which offers advice and support and tests the Faircap filters in the field.

Solver Team

Organization Type:

Barcelona, Spain


Working in:
Kenya, Lebanon, Mozambique, Syria 



Solution Team:


A Filter that Instantly Purifies Water

Solver Faircap received the $75,000 Innovating Together for Healthy Cities Prize from Member Abu Dhabi Crown Prince Court in 2019 to further develop a small, chemical-free filter that instantly purifies water.


A Filter that Instantly Purifies Water

Solver Faircap, a small, chemical-free filter that instantly purifies water, received a $10,000 grant from Solve in 2019 for being selected as a Healthy Cities Solver.

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