A mouse died in the floor—how can I eliminate the smell? - briefly
Remove the dead rodent, then clean the affected spot with an enzymatic or bleach‑based disinfectant, ventilate the space, and place odor‑absorbing agents such as activated charcoal or baking soda. Allow the area to dry completely and seal any openings to prevent recurrence.
A mouse died in the floor—how can I eliminate the smell? - in detail
A deceased rodent hidden in a floor cavity releases putrescine and cadaverine, causing an unmistakable odor that can permeate rooms for weeks.
Identify the source.
- Remove baseboard or access panel.
- Use a flashlight to locate the carcass.
- If the body is deep within joists, cut a small opening to extract it with gloves and a disposable bag.
Dispose of the remains.
- Seal the animal in a plastic bag, double‑bag, and place it in a trash container for municipal pickup.
- Disinfect the gloves and tools with a bleach solution (1 part bleach to 9 parts water) after removal.
Clean the affected area.
- Scrub the exposed wood or drywall with hot water and a detergent that contains enzymatic cleaners; these break down organic residues.
- Rinse with clean water and allow the surface to dry completely.
- If drywall is saturated, cut out the damaged section and replace it, sealing edges with a mold‑resistant compound.
Neutralize lingering odor.
- Apply an activated‑charcoal or zeolite powder to the cavity, leave for 24 hours, then vacuum.
- Place bowls of white vinegar or baking soda in the room for 48 hours to absorb vapors.
- For persistent smell, use an ozone generator for a short cycle (15–30 minutes) in an unoccupied space, following safety guidelines.
Prevent recurrence.
- Seal gaps around pipes, vents, and wiring with steel wool and caulk.
- Install traps or deterrent devices in crawl spaces.
- Conduct periodic inspections of hidden areas, especially after renovations or pest activity.