Negative Positive
Title: Whisper quiet....yeah right
Review: First let me point out to the uninitiated that when you buy something from Amazon with "free" super saver shipping if you send the item back for a refund Amazon will deduct the original shipping fee (that was free) from your refund. As far as the air purifier is concerned it is anything but quiet. Even on it's lowest speed it makes as much noise as a conventional fan. I really don't understand why someone can't make a reasonably priced air filter that is quiet enough to run at night. I would not recommend this unit to anyone.
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