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Roommate smokes weed and the smell lingers into the return vent and into my room. Any suggestions on what I can do? I know that the return vents don't usually have filters 5 Steps To Remove Smoke Smell From Air Ducts Hi guys, anybody knows how can I prevent from cigarettes smoke coming into my apartment from the toilet vent? Someone from our neighbours above is smoking and it's all coming to us How to Stop Secondhand Smoke Coming Into Your Apartment Have a Smoker in Your Family? It's Probably Time for an Air Duct Cleaning Dust Doctors Blog

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