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Title: Enviromental concern
Review: I bought this as a gift for my wife, who as asthma and is allergic to dust but she did not like it.My wife was worried about the O3 {ozone} released. The O3 is what cleans the air, but that in itself has been considered a polluntant for asthmatics to avoid. Until she sees real evidence of its effectivness from a reliable source she will not use it. She would rather stick to HEPA filters which are recommended and approved by a large number of professional and medicial recommendations.
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