Pack of 4 DCV5011H HEPA filters compatible with DEWALT DCV501HB cordless handheld vacuum cleaner, with 8 foam sleeve filters and 1 brush

The filter is made of pleated filter paper, trapping 99.97% of dust particles as small as 0.3 microns; the pleated filter paper provides a larger surface area to improve airflow. The filters have a foam seal with excellent airtightness, preventing dust leakage. Using a foam pre-filter can prevent large objects from clogging the filter. Pack of 4 HEPA filters with 8 foam filters and 1 brush. Please note: the foam sleeves are inside the HEPA filters. The filter material can be washed and reused for improved debris filtration. We recommend replacing the filters every 2 to 3 months for optimal vacuum cleaner performance, depending on your usage frequency.