DCV501HB Fit Model DCV501HB Filter only Compatible with DEWALT 20V Vacuum Cordless Handheld Vacuum.Please Check Your Machine Model Carefully Before Placing the Order.High HEPA Filter DCV501HB HEPA Filter is Made of Highquality Environmental Protection Materials Which can Effectively Capture 99.97 of as Small as 0.3 Microns.Friendly Home Environment Using 360degree Intake Air Filter Surface Area can Provide Higher Filtration Performance And HEPA DCV501HB Filter can be Used for 46 months on Average to Achieve more Effective Cleaning and Provide a Better Home Environment for the Family.Reusable for Cleaning and Recycling DCV501HB filter can be Cleaned with cleaning Brush and Reused after Drying And You can Check Your Local Recycling Facilities for Availability.Recommended We suggest replacing your filter about every 46 months.Regular cleaning and replacement of the filter can keep your vacuum equipment at its best performance.