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2. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   UV-treated water must therefore not be exposed to visible light for any significant period of time after UV treatment, before consumption, to avoid ingesting reactivated and dangerous microbes. Recent developments in semiconductor technology allows for the development of UV-C Light Emitting Diodes (LEDs). UV-C LED systems address disadvantages ...

3. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Ultraviolet light (UV) is very effective at inactivating cysts, in low turbidity water. UV light's disinfection effectiveness decreases as turbidity increases, a result of the absorption, scattering, and shadowing caused by the suspended solids. The main disadvantage to the use of UV radiation is that, like ozone treatment, it leaves no ...

4. Tata Swach - Wikipedia

   en.wikipedia.org/wiki/Tata_Swach

   The Tata Swach is a water purifier developed by Tata Chemicals, a part of the Tata group in India. [1] Swach was designed as a low-cost purifier for Indian low-income groups, who lack access to safe drinking water. [2] [3] The product is sold in three variants as Tata Swach, Tata Swach Smart and Tata Swach Smart Magic. [4]

5. Do Air Purifiers Actually Work? Here's What Experts Say - AOL

   www.aol.com/air-purifiers-actually-heres-experts...

   You'll also find UV (ultraviolet light) filters on the market, which often claim to destroy biological impurities like mold or bacteria; but many require higher wattage and greater exposure to be ...

6. Solar water disinfection - Wikipedia

   en.wikipedia.org/wiki/Solar_water_disinfection

   The SODIS method uses a combination of UV light and increased temperature (solar thermal) for disinfecting water using only sunlight and repurposed PET plastic bottles. SODIS is a free and effective method for decentralized water treatment , usually applied at the household level and is recommended by the World Health Organization as a viable ...

7. Kent RO Systems - Wikipedia

   en.wikipedia.org/wiki/Kent_RO_Systems

   Kent sells over 225,000 reverse osmosis purifiers annually and holds around 40% of the market share in India. In 2010, its annual turnover was ₹250 crore, and by 2015, the company had sold approximately 4.5 million units. Around 80% of its revenue comes from reverse osmosis purifiers. Kent has sold over a million units to date. [3] [5] [6]