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 long does a treatment of Acarosan 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 do I best use the Acarosan liquid Spray product? Where can I purchase the BISSELL One Step Wood Floor Care? Is it okay to use the BISSELL Carpet Care Formula in my new BISSELL Upright Deep Cleaner? I have an older BISSELL canister-type cleaner and had this product left over. Can I still use it? Where can I buy the BISSELL OxyPRO Natural Orange?