For a breath of fresh air, simply sprinkle 2-3 tablespoons Smelleze powder per square foot, vacuum 20-30 minutes later, and smell the difference. For really tough odors, vacuum 12-24 hours after sprinkling Smelleze and repeat procedure, if necessary, until odor is eliminated. This product will function most efficiently in an enclosed area with good air circulation. To obtain the best results, remove the odor sources (e.g. spills and used garbage) and clean the affected area prior to treating with Smelleze. For extra effectiveness, use this product in conjunction with Smelleze General Purpose Deodorizer Pouch.