I'm not sure what they are supposed to smell like, but if I leave this more than an hour, my whole car smells like raw pumpkin. it seemed to reduce dog odor at first, but then I left it placed in the car and the whole car smelled funny. I tried again later (unplugged, let it smell doggy, plugged it in again) and after only 1 hour, it smelled like pumpkin again. Anyway, it is a nice car air purifier!
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