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Question:
What are the pros and cons of using UV light pens for water treatment? How effective are they against parasites, bacteria, and viruses?
Submitted by – Kevin, Burlington, KY
Answer:
UV light devices kill all pathogens, including viruses, when used as directed. That’s a big pro. It’s also quick (usually, purification takes just a few minutes). On the down side, they are expensive, heavy compared to tablets, and they require batteries.