Can I use portable water filters to avoid traveler's diarrhea?
Portable water filters are not recommended because of lack of independently verified results of the filters' effectiveness.
From: Traveler's Diarrhea WebMD Medical Reference
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
This tool does not provide medical advice. See additional information.