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?(2) 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 Why did the brush stop rotating on my machine? What are the main uses for the Acarosan spray? I have an upright carpet cleaner. When mixing the cleansing formula do I use it full strength or dilute it in my machine? Can I use OxyPRO as a pretreater to deep cleaning?