can cigarette smoke travel through air vents How to Block for Coming and Going Vents? Roommate smokes weed and the

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 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 Secondhand smoke doesn't stay in one unit. In multi unit housing, smoke can travel through vents, hallways, and shared wallsimpacting the health of entire buildings, not just individuals. Everyone deserves clean air at Wildfire smoke can travel far beyond the fire itself, and outdoor smoke can become an indoor air quality concern. Before smoke season arrives, check filters, keep windows and doors closed during smoke

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