Reviewed by wongster82 from NYC on Wednesday, February 13, 2013
Neat little device for the times you are unsure of the water quality. I usually use it on tap water from outside the country (Asia) that I already boiled. Used it to my trip to Thailand, China, and Hong Kong.
Slow process, first off the water needs to be a cool 50ish, and the process takes 1.5 min for a 32 ounce.
Overall not too bad, for the price I paid and for the self-assurance.