Title: Does the job
Review: I have had this air filter for at least 4 years now. It works really well to keep the air fresh. I can definitely tell the difference if it is not on, the air smells a bit stale without the purifier. I keep it running pretty much non stop and it is still working really well. The one downfall to this machine is it's not really quiet flow. However in it's quiet- est mode it's definitely quieter than most other air purifiers I've found.
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