Consumer
“...everyone, and I mean EVERYONE swore they were buying one as soon as they got home.”
MSR MIOX Purifier
“I brought my MIOX Purifier on a several week backcountry trip into the Sierras. By the end of the trip, everyone, and I mean EVERYONE swore they were buying one as soon as they got home.”
— Doug, a customer
“I live on a small island—unfortunately, I get raw lake water out of my taps. After hauling water from town every week, I bought a MIOX pen. My water is clearer and cleaner and better tasting than the town water I used to haul.”
— James, a customer
“I have more than one of your MIOX pens and I have used them in many diverse parts of the planet. They have really made me feel much better about my water supply no matter where I go.”
— Michael Hueser, a customer
National Geographic Today
The MSR MIOX Purifier is being utilized by U.S. military forces, including those in Iraq and Afghanistan. The device reduces the load-bearing requirement for a soldier in the field, since it enables them to treat available water sources to drinking water quality.
Water Drawn Near a Sewage
Discharge in Thailand

Very high oxidant demand ground water with likely contamination from nearby sewage discharge
Water drawn near a sewage discharge in Thailand had a high oxidant demand with a total of 3 times the normal dose required, but the tester did not get sick after drinking the water.
Testimonials
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that mixed-oxidant customers report fewer taste and odor complaints than with conventional chlorine?