Instruct: Classify the given review as either positive or negative.
Query: Buyer Beware!!!!

I have one of these, purchased at walmart. New it worked pretty nice I noticed a reduction of dust etc in air but shortly after the red clean light came on and never goes away. Even after disassembly and clean it will not go out. I looked over the web and found this to be a constant problem with these units and they are considered throw away. I dropped $90 on the unit and I would not throw $90 in the trash but looks like I did anyway. Look this up online and you will see the persistent issues with all Ionic products.