🗓️ Maintenance Calendar
How to Clean a Tumble Dryer Vent and Filter
Lint build-up makes dryers slow, expensive to run, and a fire risk. Cleaning takes minutes.
Marcus Ibe · Oct 22, 2026 · 5 min read · 4 steps
Every load of washing sheds lint, and much of it ends up in the dryer’s filter, ducting, and vent. When airflow drops, clothes take longer to dry and the machine runs hotter.
Lint is highly flammable, so regular cleaning is a safety job as well as an efficiency one.
After every load
Pull out the lint filter and clear it by hand. Once a month, wash it in warm soapy water and let it dry fully — fabric softener can leave a film that blocks airflow even when the filter looks clean. Condenser dryers also have a heat-exchanger or condenser unit that needs rinsing every few weeks; check the manual.
Cleaning the vent hose
- Unplug the dryer and pull it away from the wall
- Detach the flexible hose from the back of the machine
- Shake out lint and vacuum inside both ends
- Check for kinks, crushing, or tears and replace if damaged
- Clear the outside vent flap so it opens freely
Signs of a blocked vent
Clothes needing two cycles, the dryer feeling very hot to the touch, a burning smell, or the outside flap not opening while the dryer runs all suggest restricted airflow. Stop using the machine until you have cleared it.
Safer use
Do not run a dryer overnight or when you are out, keep the area around it clear, and use a rigid or semi-rigid metal duct where possible — they collect less lint than plastic hoses.
This is general home-maintenance information, not professional advice. Building codes, permits, and safe practices vary by location — consult a licensed contractor, electrician, or plumber for work beyond your experience.