How to Clean Clothes Dryer (Lint Trap & Vent)
Clogged dryer vents cause approximately 2,900 house fires per year in the US (NFPA data). Annual vent cleaning is essential fire prevention.
If clothes take longer than one cycle to dry, the vent is likely clogged. This is an urgent safety issue.
What You'll Need
- 1
- 1
- Bowl
- 1
Step-by-Step Method
Remove the lint screen. Peel off the lint (this should happen after EVERY load). Monthly: wash the screen with warm soapy water and a brush to remove invisible fabric softener residue that reduces airflow.
With the screen removed, use a vacuum hose attachment to clean inside the lint trap housing. Lint accumulates below the screen opening and inside the housing walls.
Pull the dryer away from the wall. Disconnect the vent hose from the back of the dryer. Use a dryer vent brush (long flexible brush) to clean lint from both the dryer exhaust port and the vent hose.
Go outside and check the vent exit point. Clear any lint, debris, or bird nests. The vent flap should open freely when the dryer runs.
- NEVER operate a dryer without the lint screen in place
- Do not use a dryer with a crushed or kinked vent hose
- Do not use vinyl or foil accordion-style vent hoses (fire hazard; use rigid or semi-rigid metal)
- Clean the lint screen after EVERY load. This is the single most important dryer maintenance task.
- Shorter, straighter vent runs dry more efficiently and clog less. Every 90-degree bend reduces airflow.
- If your dryer is in a closet, make sure the closet door has ventilation (louvered door or vent grilles). Dryers need air intake to operate safely.
Frequently Asked Questions
The vent hose and duct: at least once per year. The lint screen: after every single load. If you notice clothes taking longer to dry, the vent needs cleaning regardless of schedule. Homes with long vent runs or multiple bends need more frequent cleaning.
Sources & Methodology
Dryer fire statistics from National Fire Protection Association (NFPA). Lint trap and vent cleaning frequency per Consumer Product Safety Commission guidelines.
Last reviewed: March 20, 2026