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Title: Bought two - both defective...
Review: I ordered one of these a few months ago, and after running it on "high" for 2 hours the fan stopped. The cleaner worked on medium & low settings after that, but would not run on high. I called the company; they said it was a defect. Amazon.com sent a replacement; the replacement ran for only 5 minutes on "high" before giving up the ghost. The medium and low settings are great, effective and quiet - but not being able to use the high setting is ridiculous, and 2 defective cleaners in a row seems like a pretty bad track record. This happened in the past 2 months; maybe it was a defective batch from the factory, since earlier reviewers don't seem to have had this problem. Anyway, food for thought.
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