Photos: The claims of three SkyMall gadgets
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Nano-UV Wand( Zadro Products, Inc. )
The SkyMall ad for the Nano UV-Wand claims that the device "kills 99.99% of bacteria and viruses in 10 seconds." It costs about $100.
The bottom line: The Nano-UV wand at least passes the basic plausibility test, says Kalmia Kniel, associate professor of food parasitology and virology at the University of Delaware in Newark. Kniel co-authored a 2008 study showing that UV-C light could kill hepatitis A and other viruses on lettuce, green onions and strawberries.
Although the Nano-UV wand would undoubtedly kill some germs on foods, Kniel says that it would be extremely difficult to reach every nook and cranny where germs can hide.