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How to Prevent Cigarette Smoke From Entering Through a Vent

Second-hand smoke is extremely dangerous, containing more than 40 cancer-causing agents. In fact, the U.S. Environmental Protection Agency places second-hand smoke in the same danger category as asbestos and radon. Unfortunately, many nonsmokers, especially those who live in dwellings with multiple units, are subjected to second-hand smoke that seeps through vents and other openings within the home. The only way to stop smoke from entering through a vent is by blocking the vent. This is an easy task; however, it may cause some inconveniences as you will lose use of that specific vent.

Things You'll Need

  • Screwdriver
  • Vent cover
  • Duct tape or foam weather stripping
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Instructions

    • 1

      Remove the vent grate, using a screwdriver.

    • 2

      Place a vent cover over the opening of the vent. Many are magnetic and will stick directly to the inside of the vent opening.

    • 3

      Seal the edges of the vent cover with duct tape or adhesive-foam weather stripping (if not using a magnetic vent cover or if the magnetic cover does not sufficiently block the smoke).

    • 4

      Compensate for the loss of the vent's function. If it was for heating and/or cooling, add a fan, air conditioner and/or heater to the room. If air circulation feels reduced, add a window fan.