[Compatible Model]This product is fully compatible with for Vacuum Cleaner models including IW1111,IW3511. Please confirm that your machine model matches one of our compatible products before purchasing. [ combo set]Keep your home clean and comfortable with our comprehensive cleaning combo set that includes 3 Hand Vac Pre-Motor Filters, 3 Hand Vac HEPA Filters, 3 Dock Pre-Motor Filter Assemblies, 3 Dock HEPA Filter Assemblies, 3 odor neutralizer cartridges, and 1 Cleaning Brush. [Washable & Reusable]Maximize cost-efficiency by rinsing our filters thoroughly with clean water, allowing them to dry thoroughly, and reusing them. For performance, we recommend replacing the filter set every 1-3 months to help extend the lifespan of your vacuum cleaner. In addition, the odor neutralizer is not washable, and it is recommended to replace the scent neutralizer every 1-3 months when the scent fades. Please note: the physical slightly color difference or difference, does not affect the use,