DeWalt Filter Bypass / Filter Damage

Fine dust blows out of the exhaust while vacuuming

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Possible Causes

Torn HEPA or cartridge filter, Missing pre-filter, Incorrect filter type installed, Filter not locked in place

How to Fix / Troubleshooting

Safety: Remove the battery and wear respiratory protection when handling fine dust filters.

  • Inspect filter media: Remove the main filter and check for tears, holes, or separated seams.
  • Verify correct filter: Ensure you are using the correct DeWalt filter model for your cordless vacuum (e.g., specific cartridge or HEPA unit).
  • Check pre-filter: If your model uses a foam or fabric pre-filter, ensure it is installed and intact.
  • Replace damaged filters: Install new genuine DeWalt filters and ensure they are fully seated and locked.
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Repair Difficulty

Very Easy 1/5

Required Part

HEPA Filter
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