Negative Positive
Title: Cleans the air, but wasn't exactly what we wanted.
Review: We were looking for this to be a white noise machine as well as an air cleaner. It is very quiet (would have liked for it to have been a bit louder) - about the noise level of a ceiling fan. Once it's been running for a while it cleans the air well, but the first few days of every filter change it smells charcoaly and makes the whole room stink. The replacement filters are also quite expensive. It is compact, easy to use, and cleans the air well so that is why I gave it 4 stars.
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