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How to Get Rid of a Bad Smell in Between the Walls

A foul odor emanating from inside your walls likely indicates the presence of a dead animal. A rat, mouse or even squirrel that finds itself stuck in the wall without food or water leaves behind the smell of decomposing meat. The smell may also relate to rotting food left behind by the animals, or to pet urine, caused by pets urinating on the walls, which then soaked inside. Get rid of any bad smells by treating the walls and the surrounding areas.

Things You'll Need

  • Fans
  • Absorbent filter
  • Air cleaner
  • Odor neutralizers
  • Vacuum cleaner
  • 1 gallon water
  • 1 cup bleach
  • Plastic bucket
  • Rubber gloves
  • Sponge
  • Room deodorizer
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Instructions

    • 1

      Open any windows in the room and arrange fans around the space. Direct the fans toward the open windows. The fans pull the odor from the room and push the smell outside, which helps reduce the bad smell you experience around the walls.

    • 2

      Place an absorbent filter, such as one that uses charcoal, inside an air cleaner and set the air cleaner in the room, near the smelly wall. The cleaner pulls in air, which goes through the filter, and sends fresh air into the surrounding space.

    • 3

      Sprinkle a powdered odor neutralizer on the carpet surrounding the wall. Let the product sit for several hours and then vacuum the powder. Spray a liquid odor neutralizer in the room. The products neutralize the bad smells.

    • 4

      Mix one cup of bleach and one gallon of water together in a plastic bucket. While wearing rubber gloves, rub the solution on the walls with a sponge. Rub damp cloths over the wall, wiping off the bleach. The bleach cleans and disinfects the wall, removing any smells clinging to the paint or drywall.

    • 5

      Spray the room with a room deodorizer, or use a plug-in room deodorizer that plugs into an electrical outlet. The deodorizer releases a light scent into the surrounding room, which helps cover and mask the smell inside the walls.