Updated on January 5, 2024


Created on June 3, 2014

TATA Swach Smart

A low-cost water purifier for households in India.

Developed By
  1. TATA Swach
Tested By
  • Bangalore AES
  • Central Food Technological Resarch Institute (CFTRI)
  • Intertek Labs
  • Mumbai Microtech Services
  • Mumbai Vitens
  • Mysore RD Analytical, UK
  • UK • Serum Institute
Content Partners


Product Description

The TATA Swach Smart Nanotech Water Purifier is a household, gravity driven water purifier that uses the Silver Nano-Technology to remove bacteria and viruses from drinking water.

Target SDGs

SDG 6: Clean Water and Sanitation

SDG 3: Good Health and Well-Being

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations

TATA sells this product directly through their website. Additional distributors include Essmart and Amazon India.

Manufacturing/Building Method

Mass produced

Intellectural Property Type


User Provision Model

Users can buy the product online on Tata and Amazon India’s websites. Users can also purchase the units in-person from Essmart’s retail shops. According to a TATA disclaimer: TATA does not take responsibility of the product performance in case of “unreasonably discounted Tata Swach products” sold by sources not authorised by TATA including e-commerce websites and portals. Authorised service providers include Olympia distributor on Amazon.com and WS retail on Flipkart.com.

Distributions to Date Status


Target use case

Household use

Manufacturer-specified flow rate (L/hr)

3-4 L/hr

Bacteria reduction

4 log

Type of membrane filtration


Virus reduction


Protozoa reduction


Heavy metals and/or arsenic reduction


Maximum recommended influent turbidity level (NTU)


Effluent turbidity levels (NTU)


Material of construction

Food grade, non-toxic plastic. TATA Swach bulb purification media is comprised of activated silica coated with silver nanoparticles.

Safe water storage capacity (L)

15 L

Manufacturer-specified lifetime volume (L)

1500 L

Design Specifications

The TATA Swach filter is comprised of two parts. The upper part contains reservoir where the untreated water enters and is pre-filtered via the top mesh – TATA Swach MF membrane – which is a micro-mesh systems that remove the visible impurities. The lower middle portion has the TATA Swach Bulb to which the cartridge can be attached. The primary filtering component of the Tata Swach Smart water-purifier is the TATA Swach Bulb. The TATA Swach bulb is densely compacted with processed rice husk ash impregnated with activated silica coated with silver nanoparticles that destroys harmful bacteria and viruses from water. Another reservoir is placed at the lower end, which collects clear water. The whole system acts on gravity and electricity or constant flow of water is not required. The upper chamber can be easily cleaned. Depending on the quality of water about 1500 Litres can be filtered after which the cartridge can be replaced. Once purifying capacity is exhausted the Swach bulb fuses and prevents water from passing. The lower storage container has a maximum capacity of 15 Litres.The flow rate of the filter is 3-4 litres per hour. Total weight 1.7 kgs (3.75 lbs)

Product Schematics

Technical Support

Minimal training required. Support is provided by TATA.

Replacement Components

The Bulb must be replaced at the end of its life and may be purchased online. The following components are available at local retailers: Top Mesh, Top Container, Bottom Container, Tap, Adapter, Bottom Mesh.


1500 L. No warranty information found.

Manufacturer Specified Performance Parameters

Silver nanotechnology that destroys harmful bacteria and viruses to yield safe drinking water. The filter cartridge lifetime of 1500 L.

Vetted Performance Status

It is stated that the product has been tested across reputed laboratories in India, the UK and the Netherlands as per US-EPA standards. However, no documentation sources any performance finding available at this time. The Comprehensive Initiative on Technology Evaluation (CITE) at MIT evaluated household water filters available on the market in Ahmedabad, India in summer 2014. Full findings are available in this report.


Tap contamination is possible if not maintained properly.

Complementary Technical Systems

Clean water storage container

Academic Research and References

He, D., et al., Synthesis and Characterization of Antibacterial Silver Nanoparticle-Impregnated Rice Husks and Rice Husk Ash, Environ. Sci. Technol., 2013, 47 (10), pp 5276–5284.

“Smart Saphire Blue,” TATA CHEMICALS LIMITED. Available: https://tataswach.com/products/tata-swach-smart

“TATA Swach Smart Gravity Water Purifier,15L (7.5L+7.5L), Blue?: Amazon.in: Home & Kitchen,” Amazon.in. Available: https://www.amazon.in/Swach-Electric-Smart-15-Litre-Purifier/dp/B008LN5ZWG 

“Tata uses nano technology for water purifier,” Cseindia.org. Available: https://www.cseindia.org/tata-uses-nano-technology-for-water-purifier-852

“Goal 6,” Sdgs.un.org. Available: https://sdgs.un.org/goals/goal6

“Tata Swach Water Purifier,” TATA CHEMICALS LIMITED. Available: https://tataswach.com/

“MIT D-Lab,” Mit.edu. Available: https://d-lab.mit.edu/research/mit-d-lab-cite

U. S. Epa and OW, “Drinking Water Regulations,” 2015. https://www.epa.gov/dwreginfo/drinking-water-regulations#List

“Contact Us,” TATA CHEMICALS LIMITED. Available: https://tataswach.com/pages/contact-us

“MIT D-Lab,” Mit.edu. Available: https://d-lab.mit.edu/research/mit-d-lab-cite

Compliance with regulations

The Tata Swach MF membrane is certified according to Japanese Industrial Standard (JIS) S 3201:2004 The system meets US Environmental Protection Agency (US EPA) National Primary Drinking Water Regulations (NPDWRs or primary standards)

Evaluation methods

Independent lab analysis of filtered water.

Other Information


Comments from the Community


  1. Emily says:

    Treatment method: Biogas is produced through anaerobic digestion.

  2. Wilfredo Torres says:

    It seems to be a wonderful complementary information service to reach a lot of people around the world, due to using satellites as access network technology.

Leave a Reply

Explore similar solutions


January 1, 2024

TATA Swach Cristella Plus Water Purifier

Read Solution

Implemented by

TATA Swach


January 10, 2024

Greenway Smart Stove

Read Solution

Implemented by



February 4, 2024

Dhaara Smart

Read Solution

Implemented by

Dhaara Smart


December 31, 2023

SMART Turbine

Read Solution

Implemented by

Smart Hydro Power GmbH (Ltd.)


February 16, 2024

Smart Tractor

Read Solution

Implemented by

Hello Tractor


May 24, 2024

Smart Brooder

Read Solution

Implemented by

Arinifu (George Chege)


October 8, 2018

Oxwater Smart Handpump

Read Solution


January 18, 2024

SunBell Smart

Read Solution

Implemented by

BRIGHT Products AS


January 18, 2024

Sunbell Smart Y

Read Solution

Implemented by

BRIGHT Products AS

All Solutions

Contribute to E4C's Library of Breakthrough Sustainable Development Technology Solutions

Suggest A Solution

Get more information about Solutions Library and its features.

Learn More

Have thoughts on how we can improve?

Give Us Feedback

Join a global community of changemakers.

Become A Member