How To Stop Smells From Coming Through Vents In Apartment. Some people think it’s fine to pour vinegar down vents to eliminate odors like urine. But, when we do turn the heat back on, we really don't want the smell traveling up through the vents (we'd rather tough it out with space heaters and seal our apartment from the stink).
Duct tape the air vents or find other ways to cover it up to prevent the air from coming through the vents. Vacuum and sprinkle baking soda around the house. Pull off the toilet if the smells originate there.
Smoke and febreeze like a mofo after each toke.
Typically, cigarette smoke is transferred from one unit to another through air vents, pipes, gaps in insulation, electrical outlets, ceiling fixtures, windows and doors. She was cool about it, didn't act all pissed off and clearly didn't want to make this anyone else's issue but our own. The only way to stop smoke from entering through a vent is by blocking the vent. It could be that renovations made to either unit have created new air space through which the odors are traveling.