Title: Caveat Emptor
Product review: I had purchased the O2 Innovations Personal Oxygen Bar with the intention of using it as a source of enriched oxygen while exercising on an elliptical trainer. The fact that it reportedly enriched oxygen content to 40% without the hassle of having to get a medical prescription for a higher grade oxygen concentrator was appealing. The first unit I purchased appeared to only blow plain air. As a test I directed the air flow near an open flame. No effect. None. Even when held just a few inches away. Returned the unit for a replacement. Same result with second unit. Only blew plain air. No effect on an open flame. Returned second unit for a refund. Purchase was made in June 2011. Perhaps there were quality control problems at the time?
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