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Thursday, June 3, 2010

Two low-cost Water Purifiers

A recent Economist special report on water noted that 1 billion people "... have no access to piped drinking water or safe taps or wells." Over the last few years, companies have rolled out products to make safe drinking water more affordable, and in this post I'm highlighting two new purifiers from India.

Tata Swach:


  • Company's description of health benefits: "... removes harmful bacteria and viruse"
  • Filters 3,000 liters per cartridge
  • Depending on the model, the retail cost is $16 to $22. For a family of 5, the company estimates the cost of using the Swach will be less than $1 per month.


  • Hindustan Unilever's Pureit:


  • Company's description of health benefits: "... removes harmful viruses and bacteria and removes parasites and pesticide impurities, giving you as safe as boiled water".
  • Retail cost is about $43
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