OK.. So I purchased a used 2011 iMac off of eBay for $250 with shipping for my son to learn how to use a computer. I opened the box and was hit with the stench of cigarette smoke. I decided to open the unit up, took it outside and used my leaf blower and removed a ton of dust and gunk from the inside. I put it back together and thoroughly cleaned the exterior of the iMac. Its PERFECT cosmetically and functionally. But when in use it still stinks and makes his room smell like a smokers lounge. I put some scented dryer sheets across the intake vents at the bottom and across the exhaust vents at the top in hopes that some of the nice smell covers up the smoke. This seems to help but I am assuming the reduced airflow will not be good for the iMac in the long run. Will this stench just fade over time or should I re-sell it on ebay and try for another? Not exactly pleased with the thought of my son getting exposed to Third Hand Smoke while learning to use a real computer. ANY Advice or help appreciated!