FAQ Search Select a Category Cleaning Formulas Cleaning Tips Corporate Deep Cleaners FAQ Hard Floor Cleaners Parts and Accessories Steam Sweepers Vacuums Warranty Web Site and/or go How do I best use the Acarosan Powder? Answer: Sprinkle 2.5 oz (3/4 cup) of the Acarosan® powder evenly onto each 3x3 foot area of carpet. Brush the powder into the carpet with a broom or carpet rake. Allow the powder to dry 3-12 hours. Vacuum thoroughly.