Updated on December 7, 2023


Created on June 17, 2014

Nazava Water Filter


Nazava is a two bucket system ceramic water filter with a storage capacity of 2*6 liters.

Developed By
  1. Nazava
Content Partners


Product Description

Nazava Transparent Water Filter is a two bucket water filter system that was mainly developed as an emergency relief water filtration kit by Lieselotte Heederik. Currently, this product is also being used as a household water filter system in many parts of Indonesia. The water is suitable for a single household and the product provides a storage capacity of 2*6 L and a flow rate of 2-3 L/hr.

Target SDGs

SDG 6: Clean Water and Sanitation

SDG 1: No Poverty

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations

Sales are primarily carried out by a network of 122 local resellers who sell in different parts of the country. This product is also being commercialized by diverse NGOs and through direct sales.

Manufacturing/Building Method

The ceramic candles are made locally in Indonesia.

Intellectural Property Type


User Provision Model

Users can obtain the product by ordering it from Nazava’s website or purchasing it from several local resellers.

Distributions to Date Status

As of 2020, over 145,000 units have been distributed.

Type of filter

Ceramic candle filter

Primary material of construction

Diatomaceous earth, nano silver, and activated carbon.


No additives

Manufacturer-specified flow rate (L/hr)

2-3 L/hr

Bacteria reduction

4 log

Virus reduction


Protozoa reduction

4.5 Log (>99.995%)

Heavy metals and/or arsenic reduction

Iron removal up to 90% and Manganese removal up to 50 %.

Maximum recommended influent turbidity level (NTU)


Effluent turbidity levels (NTU)


Maintenance schedule

Filters are recommended for scrubbing when flow rate slows down and that is usually once every two weeks.

Manufacturer-specified lifetime volume (L)

7,000 L

Safe water storage integration

2*6 liters

Design Specifications

The Nazava Transparent Water Filter is a two bucket ceramic water filter system. It is mainly designed for a household of 4 people. The specifications of the filter include: Volume of storage: 2*6 L Flow speed: 2-3 L/hour Capacity: 7000 L before replacement Material of container: Polyethylene plastic Mechanism of water filter: Ceramic filtration with impregnation of silver to kill germs and Activated carbon to improve the taste Pore size: 0.4 micron.

Product Schematics

Technical Support

The manufacturer provides online training videos on proper use and maintenance of the units.

Replacement Components

Available for purchase from the retailer.


Nazava provides a 1-year warranty with the filter capacity of up to 7,000 liters of water.

Manufacturer Specified Performance Parameters

This filter was designed to reduce bacteria by 99.99%, >99.99% protozoa, and 99% turbidity. The product was also designed to provide a flow rate of 2-3 Liters per hour.

Vetted Performance Status

According to laboratory testing carried by WHO, the Nazava Water Filter protects against bacteria and protozoa only.


No known safety risks if used properly.

Complementary Technical Systems


Academic Research and References

Chaudhuri, M., Verma, S. R., & Gupta, A.,1994, Performance evaluation of ceramic filter candles, Journal of Environmental Engineering, 120(6), 1646-1651.

Zievers, J. F., & Zievers, E. C.,1993, Reinforced ceramic filter candle and method of making same, U.S. Patent No. 5,223,138. Washington, DC: U.S. Patent and Trademark Office.

Carlsen, M., & Waddell, K.,2016, Nazava Water Filters; Social Impact Assessment.

Holtslag, H., & Mc Gill, J. Practical ideas to reach SDG6.

Cadeddu, S. B., Donovan, J. D., Topple, C., De Waal, G. A., & Masli, E. K. (2019), Frugal Innovation and the New Product Development Process: Insights from Indonesia, Routledge.

“Our Impact,” Nazava Water Filters International, 08-Sep-2021. Available: https://global.nazava.com/impact/our-impact/

Goal 6. (n.d.). Sdgs.Un.Org. available: https://sdgs.un.org/goals/goal6

“Where To Buy,” Nazava Water Filters International, 08-Sep-2021. Available: https://global.nazava.com/support/where-to-buy/ 

“Nazava Water Filters. Water that Cares,” Nazava Water Filters International, 18-Sep-2020. Available: https://global.nazava.com/ 

“What can be removed from drinking water by Nazava Water Filters?,” Nazava Water Filters International, 13-Oct-2021. Available: https://global.nazava.com/product/what-can-be-removed-from-drinking-water-by-nazava-water-filters/ 

J. Kolonel Masturi, “Nazava Water Filter,” Nazava.com. Available: https://www.nazava.com/wp-content/uploads/2019/03/WHO-Product-report-Nazava.pdf

G. van Hofwegen, “Laboratory Test Results Nazava Water Filters,” Nazava, 19-Jul-2018. Available: https://www.nazava.com/laboratory-test-results-nazava-water-filters/


Compliance with regulations

Manufacturer states that Nazava complies with the drinking water standard of WHO for the microbial test mainly bacteria and protozoa removal.

Evaluation methods

Filters have been tested in laboratories worldwide.

Other Information

Nazava Water Filters received the 2013 Laureate of The Tech Awards and was the winner of the 2016 Ashden Award for Sustainable Energy and Water. How to use your Nazava Transparant XL Water Filter https://www.youtube.com/watch?v=nDm28tC1XyE

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