Purifaaya is a locally-made, ceramic water filter in Uganda that uses both physical filtration and chemical disinfection.
Market Suggested Retail Price
Target Users (Target Impact Group)
Distributors / Implementing Organizations
Purifaaya has distributors all over Uganda. SPOUTS partners and supporters include SIMBA telecom, Tuskys Supermarket, Uganda Ministry of Water and Environment and others (page 8).
Purifaaya is mass produced at the SPOUTS factory in Uganda. The raw materials (black clay, yellow clay, sawdust, and grog) are grinded and mixed together. The mixture is pressed into the filter form and touched up. Filters are fired in a wood-burning kiln at 900 °C. The sawdust is combusted leaving micropores, the main form of physical filtration. Filters are painted with silver nitrate for chemical disinfection. They are then packaged and distributed to various partners.
Intellectural Property Type
User Provision Model
User can purchase the product from local partners and distributors.
Distributions to Date Status
According to the 2016 Annual Report, roughly 10,000 units have been distributed from 2015 to 2016.
Type of filter
Ceramic pot filter
Primary material of construction
Ceramic, silver nitrate
Manufacturer-specified flow rate (L/hr)
4 (99.99%) E. coli reduction
Heavy metals and/or arsenic reduction
Maximum recommended influent turbidity level (NTU)
Effluent turbidity levels (NTU)
>94% turbidity reduction
Clean the filter about every 2 weeksInterview with representative
Manufacturer-specified lifetime volume (L)
Safe water storage integration
Water is filtered through small silver-impregnated pours in the ceramic filter where bacteria is too large to fit through.
Available from manufacturer. Interview with representative
Manufacturer recommends replacing the filter every 2-3 years to keep filtering process from slowing down. The filter will always remain effective separating out impurities. Additional replacements available from manufacture. Interview with representative
Manufacturer Specified Performance Parameters
2 L of water is filtered per hour and each filter has a life span of 2 years, or 17,520 hours. 99.9% of bacteria is eliminated.
Vetted Performance Status
Water collected through filter tap was tested for bacteriological, physical and chemical constituents to ensure the safety of the water and compared to the water before it went through the filter. The percentage removal rate was calculated and it’s sustainability. Purifaaya has also successfully performed in disaster relief situations like Tsunami in Sri Lanka and Flooding in Dominician Republic. More info here.
Regular cleaning and maintenance of ceramic water filter required in every 14 days
Complementary Technical Systems
Academic Research and References
Compliance with regulations
Meets standard of safe drinking water by the Uganda Ministry of Water and Environment.
Laboratory testing of water cleaned by Purifaaya include parameters like conductivity, pH and turbidity measurements and testing total Coliforms and E. coli by decomposing organic matter.
Donations are accepted by SPOUTS Spouts also offer Purifaaya XL model for schools and refugee camps.