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Dryer vent cleaning — soft vs stiff brush head after foil is gone

Dryer vent

Once foil duct is replaced, pick soft vs stiff dryer vent cleaning brush heads for one beat: soft for plastic/rigid walls, stiff only when lint cake needs more bite.

soft vs stiff dryer vent brush head — related household tip photo
Photo: Rick Harpenau / Wikimedia Commons (CC BY 3.0)

After foil is out of the run, dryer vent cleaning is mostly brush choice. Use a soft head on smooth rigid or plastic walls first; save a stiff head for stubborn lint cake so you do not scuff the liner when the dryer takes two cycles.

Soft vs stiff dryer vent brush head once the foil duct is gone

  1. Confirm foil accordion is already replaced with smooth rigid or UL-listed transition — do not stiff-brush leftover foil.
  2. Start with the soft round head and short sections from the outdoor hood or dryer end, feeling for light lint pull.
  3. Switch to a stiffer head only if soft passes leave a dense cake you can still see or feel — stop if the brush binds hard.
  4. Finish with a soft pass to clear loose lint, then run an empty timed cycle and check outdoor flap flow.

Honest stop: never force a stiff head past a sharp elbow or into a crushed section — pull the dryer, open the joint, or call a vent tech instead of snapping rods inside the wall.

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