Great for travel or an emergency-preparedness kit, this handheld water purifier
destroys viruses, bacteria, and common protozoa. It weighs just 8 ounces with
four AA, disposable batteries (not included) and purifies 16 ounces of water
in 48 seconds, or 32 ounces in 90 seconds. The purifier employs ultraviolet
light (UV) to destroy the DNA of microorganisms, making them unable to reproduce
and cause illness. It's effective against outdoor microbes like giardia and
cryptosporidium; pathogens that cause diarrhea, dysentery, hepatitis, and Legionnaire's
Disease; household germs such as bird flu, E. coli, and salmonella; staph and
strep; and natural-disaster risks like botulism, cholera, smallpox, and typhoid.
No pumping, no chemicals, no test strips, no timekeeping, no lubricating, and
no replacement filters are required. All that is required is to push the water
purifier's button (once for 32 ounces, twice for 16 ounces), place the pen-like
lamp in clear water, and stir until an indicator light turns green. Water has
no aftertaste after being purified. Measuring 7.6 inches long, the purifier
comes with a nylon case and a user's guide. It exceeds U.S. Environmental Protection
Agency guidelines for testing microbiological water purifiers.