There are presently a number of products available that use ultraviolet light to kill microorganisms in drinking water. Many of these are used on the water after it has been dispensed, requiring users to wait before drinking it. Others are fairly large, or require the water to be within a certain temperature range. Philips Lighting, however, has just released a compact UV water disinfection device known as InstantTrust. It is said to kill bacteria instantly, at the point of use, and at any temperature.
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While details on exactly how the unit works are slim, Philips states that it could be applied in taps, water pitchers, under-the-sink filters or counter-top systems. It kills water-borne microorganisms in hot or cold water - when treating cold water, it can do so at flow rates of up to approximately four liters (one U.S. gallon) per minute. This means that if it were installed in a tap, for instance, users could simply drink the water right as it came out.
There is presently no word on availability or pricing.
Source: The VergeView gallery - 2 images