Instruct: Classify a given review as either positive or negative.
Query: Doesn't Work for Odor

After reading the reviews, I was expecting this purifier to really alleviate the cigarette odor seeping into my apartment. Unfortunately I haven't noticed a difference at all. I've had the product for about month now, and I wish I could return it and get my money back. There are probably better and more affordable purifiers out there.I also think this product was a refurbished/used item, although amazon said it was New.