MSR MIOX Water purifier

Dave writes – “Since the SeriPEN was posted I thought I’d suggest something along similar lines. The MIOX water purifier, this is a product from MSR…You can’t get a sense of it’s size from the site but I have seen it in person and it is pretty small only 99 grams… Here’s a review.” – Link.

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SteriPEN portable water purifier – Link.