Scrubbing floors with a mixture of borax and water, leaving multiple bowls of white vinegar in the area, and utilizing a dehumidifier remove odors from a basement. Finding and treating frequent basement odor causes, such as moisture, mold and mildew, also eliminates odor. Making sure the house is well-ventilated prevents the growth of mold and mildew that often causes odors.
The bowls of vinegar initially emit a strong vinegar smell that disappears after about a day. Open containers of cat litter or baking soda placed in a basement absorb odors, while putting in a dehumidifier and opening windows lowers humidity, improves ventilation and reduces musty odors. The Smelleze Basement Deodorizer Pouch, Gonzo Corporation OEB212 Basement Odor Eliminator and House Basement Odor Absorber Air Freshener are some commercial products that claim to eliminate basement odors.
Checking plumbing apparatuses for cracks and leaks, cleaning out air ducts, and clearing away mold and mildew are some ways to identify and address the root cause of basement odors. Making sure that rain water runs away from the house is another way. Discarding unused items that may be collecting dust, vacuuming carpets and furniture upholstery that may be retaining moisture, and washing or removing any clothes kept in the basement are additional suggestions.