FAQ Search Select a Category Cleaning Formulas Cleaning Tips Commercial Products Corporate Deep Cleaners Hard Floor Cleaners Mops, Brooms and Brushes Parts and Accessories Steam Sweepers Vacuums Warranty Web Site and/or go When using this product, how long does the treatment last? Answer: Each treatment of Acarosan® lasts up to two weeks when using the spray. The powder will last up to four weeks. Related Questions How is the 3X Concentrated Formula different than the other formulas for full size deep cleaners? What is causing static electricity in my carpet and how can I control this? How do I best use the Acarosan Powder? The handle for my BISSELL Sweeper keeps falling apart, what should I do?