Negative Positive
Title: Filter needs to be changed too often
Review: I have had this unit for about a week and I already need to change the filter. Also, the low setting is just like not having it turned on at all...I wake up with a headache and dry throat like usual. But it's too noisy to sleep with it on the high setting. After re-reading the reviews posted, I'm not even sure why I bought this unit in the first place.
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