To remove the odor of a dead animal, treat the area with an odor neutralizing product and use carbon filters or other air purifying products in the area. It is necessary to identify the location of the animal for odor neutralizers to work effectively.
If possible, remove the animal carcass and sanitize the area with a bleach and water solution. A solution of 9 cups of water and 1 cup of bleach should be poured on hard surfaces, such as concrete floors, and allowed to remain for 10 minutes to remove any remaining bacteria and odor left by the animal. Inside the home, odor neutralizers are recommended. Do not touch the animal, and disinfect all materials that were used to handle the animal during removal.
Animals that die inside the walls of the home may be difficult to locate. If the odor is located in a specific room, drill small holes into the empty spaces between the studs in the wall and spray professional strength odor neutralizer into the holes. If the odor can be pinpointed to a specific location, it may be possible to cut a small hole in the wall the remove the animal, and then treat the surrounding area to eliminate the odor.
Powdered odor neutralizer can also be used to treat odors inside walls. Hang odor reducing bags in the room, or install a charcoal air filter to trap odors in the air. If the weather permits, open the windows in the room to reduce the smell.