Wurth Eco Odor Eliminator removes the toughest smells: smoke, mold, and mildew. Once sprayed onto hard and soft surfaces, it continues to absorb odors as long as the active ingredient has not been used up by the odor, even when dry. Reactivate it simply by wetting. The formula is not affected by high temperatures. It completely eliminates the odor at its source and will not release bad odors back into the air even when it dries.