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 Why do I need Acarosan? Answer: Dust mites are the #1 cause of indoor allergens. In order to control dust mites and their re-population, it is important to use the Acarosan® spray and powder on a regular basis. Related Questions How do I best use the Acarosan liquid Spray product? Where can I purchase the BISSELL One Step Wood Floor Care? Where can I buy the BISSELL OxyPRO Natural Orange? How do we use the 3X Concentrated Formula?