Compatible with Black + Decker BSV2020G BSV2020WAPB Powerseries Cordless Vacuum Cleaner. It is folded with high-efficiency HEPA filter paper to make the released air healthier. Function: filter and remove dust, protect the vacuum cleaner motor, effectively filter dust and prevent secondary pollution. It is recommended to replace the filter every 1-2 months, to improve the suction power and performance as it extends the life of the vacuum cleaner. Package contents: 3 x HEPA filters for Black + Decker BSV2020G. Note: The data is all measured manually, please allow 1-3cm error Due to differences in light and display, there may be some deviations. color differences, please refer to the actual item received.